The AD724 is a low cost RGB to NTSC/PAL Encoder that converts red, green and blue color component signals into their corresponding luminance (baseband amplitude) and chrominance (subcarrier amplitude and phase) signals in accordance with either NTSC or PAL standards. These two outputs are also combined to provide composite video output. All three outputs can simultaneously drive 75 (ohm), reverse-terminated cables. All logical inputs are CMOS compatible. The chip operates from a single +5 V supply. No external delay lines or filters are required. The AD724 may be powered down when not in use.The AD724 accepts either FSC or 4FSC clock. When a clock is not available, a low cost parallel-resonant crystal (3.58 MHz (NTSC) or 4.43 MHz (PAL)) and the AD724?s on-chip oscilla-tor generate the necessary subcarrier clock. The AD724 also accepts the subcarrier clock from an external video source.The interface to graphics controllers is simple: an on-chip logic ?XNOR? accepts the available vertical (VSYNC) and horizontal sync (HSYNC) signals and creates the composite sync (CSYNC) signal on-chip. If available, the AD724 will also accept a standard CSYNC signal by connecting VSYNC to +5 V and applying CSYNC to the HSYNC pin. The AD724 contains decoding logic to identify valid horizontal sync pulses for correct burst insertion.Delays in the U and V chroma filters are matched by an on-chip sampled-data delay line in the Y signal path. To prevent aliasing, a prefilter at 5 MHz is included ahead of the delay line and a post-filter at 5 MHz is added after the delay line to suppress harmonics in the output. These low-pass filters are optimized for minimum pulse overshoot. The overall luma delay, relative to chroma, has been designed to be time aligned for direct input to a television?s baseband. The AD724 comes in a space-saving SOIC and is specified for the 0?C to +70?C commercial temperature range.An evaluation board is available for this product and may be ordered using the following product number: AD724-EB.

The AD8013 is a low power, single supply, triple video amplifier. Each of the three amplifiers has 30 mA of output current, and is optimized for driving one back terminated video load (150 ?) each. Each amplifier is a current feedback amp-lifier and features gain flatness of 0.1 dB to 60 MHz while offering differential gain and phase error of 0.02% and 0.06? This makes the AD8013 ideal for broadcast and professional video electronics.The AD8013 offers low power of 4 mA per amplifier max and runs on a single +5 V to +13 V power supply. The outputs of each amplifier swing to within one volt of either supply rail to easily accommodate video signals. The AD8013 is unique among current feedback op amps by virtue of its large capacitive load drive. Each op amp is capable of driving large capacitive loads while still achieving rapid settling time. For instance it can settle in 18 ns driving a resistive load, and achieves 40 ns (0.1%) settling while driving 200 pF.The outstanding bandwidth of 150 MHz along with 1000 V/?s of slew rate make the AD8013 useful in many general purpose high speed applications where a single +5 V or dual power supplies up to ?6.5 V are required. Furthermore the AD8013's high speed disable function can be used to power down the amplifier or to put the output in a high impedance state. This can then be used in video multiplexing applications. The AD8013 is available in the industrial temperature range of -40?C to +85?C.

The AD8074 /AD8075 are high-speed triple video buffers with a G = +1 and +2 respectively. They operate on ?5V and have a -3dB full signal bandwidth in excess of 500MHz, along with slew rates in excess of 1350V/?s. With better than -80dB of all hostile crosstalk and 90dB isolation, they are useful in many high-speed applications. The differential gain and differential phase error are 0.01% and 0.01?. Gain Flatness of 0.1dB up to 70MHz make the AD8074/75 ideal for RGB buffering or driving. They consume less than 30mA on a ?5V supply voltage.Both devices offer a high-speed disable feature that allows the outputs to be put into a high impedance state. This allows the building of larger input arrays while minimizing 'OFF' channel output loading. The AD8074/75 are offered in a 16 lead TSSOP package.

The AD8113 is a fully buffered crosspoint switch matrix that operates on ?12V for Audio applications and ?5V for Video applications. It offers a -3dB signal bandwidth greater than 60MHz and channel switch times of less than 60ns with 0.1% settling for use in both analog and digital audio. The AD8113 operated at 20kHz has crosstalk performance of -83dB and isolation of 90dB. In addition, ground/power pins surround all inputs and outputs to provide extra shielding for operation in the most demanding audio routing applications. The differential gain and differential phase of better than 0.1% and 0.1?, respectively, along with 0.1dB flatness out to 10MHz make the AD8113 suitable for many video applications.The AD8113 includes 16 independent output buffers that can be placed into a disabled state for paralleling crosspoint outputs so that off channel loading is minimized. The AD8113 has a gain of +2. It operates on voltage supplies of ?5V or ?12V while consuming only 34mA or 31mA of current, respectively.The channel switching is performed via a serial digital control (which can accommodate daisy-chaining of several devices) or via a parallel control, allowing updating of an individual output without reprogramming the entire array.The AD8113 is packaged in a 100-lead LQFP and is available over the commercial temperature range of 0?C to 70?C.

The AD8129/AD8130 are designed as receivers for the transmission of high speed signals over twisted-pair cables to work with the AD8131 or AD8132 drivers. Either can be used for analog or digital video signals and for high speed data transmission. The AD8129/AD8130 are differential-to-single-ended amplifiers with extremely high CMRR at high frequency. Therefore, they canalso be effectively used as high speed instrumentation amps or for converting differential signals to single-ended signals.The AD8129 is a low noise, high gain (10 or greater) version intended for applications over very long cables, where signal attenuation is significant. The AD8130 is stable at a gain of 1 and can be used for applications where lower gains are required. Both have user-adjustable gain to help compensate for losses in the transmission line. The gain is set by the ratio of two resistor values. The AD8129/AD8130 have very high input impedance on both inputs, regardless of the gain setting. The AD8129/AD8130 have excellent common-mode rejection (70 dB @ 10 MHz), allowing the use of low cost, unshielded twisted-pair cables without fear of corruption by external noise sources or crosstalk. The AD8129/AD8130 have a wide power supply range from single +5 V to ?12 V, allowing wide common-mode and differential-mode voltage ranges while maintaining signal integrity. The wide common-mode voltage range enables the driver-receiver pair to operate without isolation transformers in many systems where the ground potential difference between drive and receive locations is many volts. The AD8129/AD8130 have considerable cost and performance improvements over op amps and other multiamplifier receiving solutions. Applications High speed differential line receivers Differential-to-single-ended converters High speed instrumentation amps Level shifting

TThe AD8143 is a triple, low cost, differential-to-single-endedreceiver specifically designed forreceiving red-green-blue (RGB) signals over twistedpair cable. It can also be used for receiving any type ofanalog signal or high speed data transmission. Twoauxiliary comparators are provided to receive digitalor sync signals. The AD8143 can be used in conjunctionwith the AD8133 and AD8134 triple, differentialdrivers to provide a complete low cost solution forRGB over Category-5 UTP cable applications,including KVM.The excellent common-mode rejection (65 dB at 10 MHz) of the AD8143 allows for the use of low costunshielded twisted pair cables in noisy environments.The AD8143 has a wide power supply range from single +5 Vsupply to ?12 V, which allows for a wide common-mode range.The wide common-mode input range of the AD8143 maintainssignal integrity in systems where the ground potential is a fewvolts different between the drive and receive ends without theuse of isolation transformers.The AD8143 is stable at a gain of 1. Closed-loop gain is easilyset using external resistors.The AD8143 is available in a 5 mm ? 5 mm, 32-lead LFCSP andis rated to work over the extended industrial temperature rangeof ?40?C to +85?C. Applications RGB video receivers KVM (keyboard-video-mouse) UTP (unshielded twisted pair) receivers

The AD8158 is an asynchronous, protocol-agnostic, quad-lane 2:1 switch with a total of 12 differential CML inputs and 12 differential CML outputs. The signal path supports NRZ signaling with data rates up to 6.5 Gbps per lane. Each lane offers programmable receive equalization, programmable output pre-emphasis, programmable output levels, and loss-of-signal detection.The nonblocking switch-core of the AD8158 implements a 2:1 multiplexer and 1:2 demultiplexer per lane and supports independent lane switching through the four select pins, SEL[3:0]. Each port is a four-lane link. Every lane implements an asynchronous path supporting dc to 6.5 Gbps NRZ data, fully independent of other lanes. The AD8158 has low latency and very low lane-to-lane skew.The main application of the AD8158 is to support redundancy on both the backplane and the line interface sides of a serial link. The demultiplexing path implements unicast and bicast capability, allowing the part to support either 1 + 1 or 1:1 redundancy.The AD8158 is also suited for testing high speed serial links because of its ability to duplicate incoming data. In a port-monitoring application, the AD8158 can maintain link-connectivity with a pass-through connection from Port C to Port A while sending a duplicate copy of the data to test equipment on Port B.The rich feature set of the AD8158 can be controlled either through external toggle pins or by setting on-chip control registers through the I2C interface.APPLICATIONS Low cost redundancy switch SONET OC48/SDH16 and lower data rates XAUI/GbE/FC/Infiniband over backplane OIF CEI 6.25 Gbps over backplane Serial data-level shift 4-/8-/12-lane equalizers or redrivers

The AD823A is a dual precision, 17 MHz, JFET input op amp manufactured in the extra fast complementary bipolar (XFCB) process. The AD823A can operate from a single supply of 3 V to 36 V or from dual supplies of ?1.5 V to ?18 V. It has true single-supply capability with an input voltage range extending below ground in single-supply mode. Output voltage swing extends to within 20 mV of each rail for IOUT ? 100 ?A, providing outstanding output dynamic range. It also has a linear output current of 40 mA, 0.5 V from the supply rails.An offset voltage of 700 ?V maximum, an offset voltage drift of 1 ?V/?C, and typical input bias currents of 0.3 pA provide dc precision with source impedances up to 1 G?. The AD823A provides 17 MHz, ?3 dB bandwidth, and a 30 V/?s slew rate with a low supply current of only 2.6 mA per amplifier. It also provides low input voltage noise of 14 nV/?Hz and ?108 dB SFDR at 20 kHz. The AD823A has low input capacitances (0.6 pF differential and 1.3 pF common mode) and drives more than 500 pF of direct capacitive load as a follower. This lets the amplifier handle a wide range of load conditions.This combination of ac and dc performance, plus the outstanding load drive capability, results in an exceptionally versatile amplifier for applications such as ADC drivers, high speed active filters, and other low voltage, high dynamic range systems.The AD823A is available over the industrial temperature range of ?40?C to +85?C and is offered in an 8-lead SOIC package and an 8-lead MSOP package.APPLICATIONS Battery-powered precision instrumentation Photodiode preamps Active filters 12-bit to 16-bit data acquisition systems Medical instrumentation

The AD8244 is a precision, low power, FET input, quad unity-gain buffer that is designed to isolate very large source impedances from the rest of the signal chain. The 2 pA maximum bias current, near zero current noise, and 10 T? input impedance introduce almost no error, even with source impedance well into the megaohms.Many traditional operational amplifier pinouts have a supply pin that is next to the noninverting input. A guard trace must be routed between these pins to avoid leakage currents much larger than the bias current of a FET input op amp. Guard traces can be routed between pins for large packages, such as DIP or even SOIC; however, the board area consumed by these packages is prohibitive for many modern applications. The AD8244 solves this problem with a unique pinout that physically separates the high impedance inputs from the low impedance supplies and outputs of the other buffers. This configuration simplifies guarding while reducing board space, allowing high performance and high density in the same design.The AD8244 design is focused on solving problems specific to buffers. This includes close channel-to-channel matching which allows channels of the AD8244 to be used in differential signal chains with minimal error. With its low voltage noise, wide supply range, and high precision, the AD8244 is also flexible enough to provide high performance anywhere a unity-gain buffer is needed, even with low source resistance.The AD8244 is specified over the industrial temperature range of ?40?C to +85?C. It is available in a 10-lead MSOP package.APPLICATIONSBiopotential electrodesMedical instrumentationHigh impedance sensor conditioningFiltersPhotodiode amplifiers

The AD8251 is an instrumentation amplifier with digitally programmable gains that has G? input impedance, low output noise, and low distortion, making it suitable for interfacing with sensors and driving high sample rate analog-to-digital converters (ADCs). It has high bandwidth of 10 MHz, low THD of ?110 dB, and fast settling time of 785 ns (maximum) to 0.001%. Offset drift and gain drift are guaranteed to 1.8 ?V/?C and 10 ppm/?C, respectively, for G = 8. In addition to its wide input common voltage range, it boasts a high common-mode rejection of 80 dB at G = 1 from dc to 50 kHz. The combination of precision dc performance coupled with high speed capabilities makes the AD8251 an excellent candidate for data acquisition. Furthermore, this monolithic solution simplifies design and manufacturing and boosts performance of instrumentation by maintaining a tight match of internal resistors and amplifiers. The AD8251 user interface consists of a parallel port that allows users to set the gain in one of two different ways (see Figure 1 in data sheet for the functional block diagram). A 2-bit word sent via a bus can be latched using the WR input. An alternative is to use transparent gain mode where the state of logic levels at the gain port determines the gain. The AD8251 is available in a 10-lead MSOP package and is specified over the ?40?C to +85?C temperature range, making it an excellent solution for applications where size and packing density are important considerations. ApplicationsData acquisition Biomedical analysis Test and measurement

The AD8260 includes a high current driver, usable as atransmitter, and a low noise digitally programmable variablegain amplifier (DGA), useable as a receiver.The receiver section consists of a single-ended input preamplifier,and linear-in-dB, differential-output DGA. The receiver hasa small signal ?3 dB bandwidth of 230 MHz; the driver smallsignal bandwidth is 195 MHz. The driver delivers ?300 mA,well suited for driving low impedance loads, even whenconnected to a 3.3 V supply.The AD8260 DGA is ideal for trim applications and has a gainspan of 30 dB, in 3 dB steps. Excellent bandwidth uniformity ismaintained across the entire frequency range. The low output-referrednoise of the DGA is advantageous in driving highspeed ADCs. The differential output facilitates the interface tomodern low voltage high speed ADCs.Single-supply and dual-supply operation makes the part versatileand enables gain control of negative-going pulses, such as thosegenerated by photodiodes or photo-multiplier tubes, as well asprocessing band-pass signals on a single supply. For maximumdynamic range, it is essential that the part be ac-coupled whenoperating on a single supply.The AD8260 preamplifier (PrA) is configured with externalresistors for gains greater than 6 dB and can be inverting ornoninverting. The DGA is characterized with a noninvertingpreamplifier gain of 2?. The attenuator has a range of 30 dB andthe output amplifier has a gain of 8? (18.06 dB). The lowestnoninverting gain range is ?6 dB to +24 dB and shifts up withincreased preamplifier gain. The gain is controlled via a parallelport (Pin GNS0 to Pin GNS3) with 10 gain steps of 3 dB percode. The preamplifier and DGA are disabled for any code thatis not assigned a gain step.The AD8260 can operate with single or dual supplies from 3.3 Vto ?5 V. An internal buffer normally provides a split supplyreference for single-supply operation; an external reference canalso be used when the VMID buffer is shut down.The operating temperature range is ?40?C to +105?C. TheAD8260 is available in a 5 mm ? 5 mm, 32-lead LFCSP.Applications Digital AGC systems Tx/Rx signal processing Power line transceivers

The AD8313 is a complete multistage demodulating logarithmic amplifier that can accurately convert an RF signal at its input to an equivalent decibel-scaled value at its dc output. The AD8313 maintains a high degree of log conformance for signal frequencies from 0.1 GHz to 2.5 GHz. Application is straightforward, requiring only a single supply of 2.7 V to 5.5 V and the addition of a suitable input and supply decoupling. Operating on a 3 V supply, its 13.7 mA consumption (for TA = 25?C) is only 41 mW. A power-down feature is provided; the input is taken high to initiate a low current (20 ?A) sleep mode, with a threshold at half the supply voltageThe AD8313 is fabricated on Analog Devices, Inc., advanced 25 GHz silicon bipolar IC process and is available in an 8-lead MSOP package. The operating temperature range is ?40?C to +85?C.

The AD8317 is a demodulating logarithmic amplifier, capable of accurately converting an RF input signal to a corresponding decibel-scaled output. It employs the progressive compression technique over a cascaded amplifier chain, each stage of which is equipped with a detector cell. The device can be used in either measurement or controller modes. The AD8317 maintains accurate log conformance for signals of 1 MHz to 8 GHz and provides useful operation to 10 GHz. The input dynamic range is typically 55 dB (referenced to 50 ?) with less than ?3 dB error. The AD8317 has 6 ns/10 ns response time (fall time/rise time) that enables RF burst detection to a pulse rate of beyond 50 MHz. The device provides unprecedented logarithmic intercept stability vs. ambient temperature conditions. A supply of 3.0 V to 5.5 V is required to power the device. Current consumption is typically 22 mA, and it decreases to 200 ?A when the device is disabled.The AD8317 can be configured to provide a control voltage to a power amplifier or a measurement output from the VOUT pin. Because the output can be used for controller applications, special attention has been paid to minimize wideband noise. In this mode, the setpoint control voltage is applied to the VSET pin.The feedback loop through an RF amplifier is closed via VOUT, the output of which regulates the output of the amplifier to a magnitude corresponding to VSET. The AD8317 provides 0 V to (VPOS ? 0.1 V) output capability at the VOUT pin, suitable for controller applications. As a measurement device, VOUT is externally connected to VSET to produce an output voltage, VOUT, that is a decreasing linear-in-dB function of the RF input signal amplitude.The logarithmic slope is ?22 mV/dB, determined by the VSET interface. The intercept is 15 dBm (referenced to 50 ?, CW input) using the INHI input. These parameters are very stable against supply and temperature variations.The AD8317 is fabricated on a SiGe bipolar IC process and is available in a 2 mm ? 3 mm, 8-lead LFCSP with an operating temperature range of ?40?C to +85?C.Applications RF transmitter PA setpoint control and level monitoring Power monitoring in radio link transmitters RSSI measurement in base stations, WLANs, WiMAX, and radars

The AD8330 is a wideband variable gain amplifier for applicationsrequiring a fully differential signal path, low noise, well-definedgain, and moderately low distortion, from dc to 150 MHz. Theinput pins can also be driven from a single-ended source. Thepeak differential input is ?2 V, allowing sine wave operation at1 V rms with generous headroom. The output pins can drivesingle-sided loads essentially rail-to-rail. The differential outputresistance is 150 ?. The output swing is a linear function of thevoltage applied to the VMAG pin that internally defaults to 0.5 V,providing a peak output of ?2 V. This can be raised to 10 V p-p,limited by the supply voltage.The basic gain function is linear-in-dB, controlled by the voltageapplied to Pin VDBS. The gain ranges from 0 dB to 50 dB forcontrol voltages between 0 V and 1.5 V?a slope of 30 mV/dB.The gain linearity is typically within ?0.1 dB. By changing thelogic level on Pin MODE, the gain decreases over the same range,with an opposite slope. A second gain control port is providedat the VMAG pin and allows the user to vary the numeric gainfrom a factor of 0.03 to 10. All the parameters of the AD8330have low sensitivities to temperature and supply voltages. UsingVMAG, the basic 0 dB to 50 dB range can be repositioned toany value from 20 dB higher (that is, 20 dB to 70 dB) to at least30 dB lower (that is, ?30 dB to +20 dB) to suit the application,thereby providing an unprecedented gain range of over 100 dB.A unique aspect of the AD8330 is that its bandwidth and pulseresponse are essentially constant for all gains, over both thebasic 50 dB linear-in-dB range, but also when using the linearin-magnitudefunction. The exceptional stability of the HFresponse over the gain range is of particular value in those VGAapplications where it is essential to maintain accurate gain lawconformanceat high frequencies.An external capacitor at Pin OFST sets the high-pass corner ofan offset reduction loop, whose frequency can be as low as 5 Hz.When this pin is grounded, the signal path becomes dc-coupled.When used to drive an ADC, an external common-mode controlvoltage at Pin CNTR can be driven to within 0.5 V of either groundor VS to accommodate a wide variety of requirements. By default,the two outputs are positioned at the midpoint of the supply, VS/2.Other features, such as two levels of power-down (fully off anda hibernate mode), further extend the practical value of thisexceptionally versatile VGA.The AD8330 is available in 16-lead LFCSP and 16-lead QSOPpackages and is specified for operation from ?40?C to +85?C.Applications Pre-ADC signal conditioning 75 ? cable driving adjust AGC amplifiers

The AD8331 is a single channel, ultralow noise, linear-in-dB, variable gain amplifier (VGA). Optimized for ultrasound systems, it is usable as a low noise variable gain element at frequencies up to 120 MHz.Included is an ultralow noise preamplifier (LNA), an X-AMP? VGA with 48 dB of gain range, and a selectable gain postamplifier with adjustable output limiting. The LNA gain is 19 dB with a single-ended input and differential outputs. Using a single resistor, the LNA input impedance can be adjusted to match a signal source without compromising noise performance.The 48 dB gain range of the VGA makes these devices suitable for a variety of applications. Excellent bandwidth uniformity is maintained across the entire range. The gain control interface provides precise linear-in-dB scaling of 50 dB/V for control voltages between 40 mV and 1 V. Factory trim ensures excellent part-to-part and channel-to-channel gain matching. Differential signal paths result in superb second- and third-order distortion performance and low crosstalk.The operating temperature range is -40?C to +85?C. The AD8331 is available in a 20-lead QSOP package.The AD8331 is a single version of the dual AD8332 and quad AD8334.For information on specs, see the AD8331/AD8332/AD8334 datasheet.Applications Ultrasound and sonar time-gain controls High performance automatic gain control (AGC) systems I/Q signal processing High speed, dual ADC drivers

The AD8335 is a quad variable gain amplifier (VGA) with low noise preamplifier intended for cost and power sensitive applications. Each channel features a gain range of 48 dB, fully differential signal paths, active input preamplifier matching, and user-selectable maximum gains of 46 dB and 38 dB. Individual gain controls are provided for each channel.The preamplifier (PrA) has a single-ended to differential gain of ?8 (18.06 dB) and accepts input signals 625 mV p-p. PrA noise is 1.2 nV/?Hz and the combined input referred voltage noise of the PrA and VGA is 1.3 nV/?Hz at maximum gain.Assuming a 20 MHz noise bandwidth (NBW), the Nyquist frequency for a 40 MHz ADC, the input SNR is 92 dB. The HLxx pin optimizes the output SNR for 10-bit and 12-bit ADCs with 1 V p-p or 2 V p-p full-scale (FS) inputs.Channel 1 and Channel 2 are enabled through the EN12 pin and Channel 3 and Channel 4 are enabled through the EN34 pin. For VGA only applications, the PrAs can be powered down, significantly reducing power consumption.The AD8335 is available in a 64-lead lead frame chip scale package (9 mm ? 9 mm) for the industrial temperature range of ?40?C to +85?C.ApplicationsMedical imaging (ultrasound, gamma cameras)SonarTest and measurementPrecise, stable wideband gain controlData Sheet, Rev A, 08/2008

The AD8336 is a low noise, single-ended, linear in dB, general-purpose variable gain amplifier, usable over a large range of supply voltages. It features an uncommitted preamplifier with a usable gain range of 6 dB to 26 dB. The VGA gain range is 0 dB to 60 dB, with absolute gain limits of ?26 dB to +34 dB. When the preamplifier gain is adjusted for 12 dB, the combined 3 dB bandwidth of the preamplifier and VGA is 100 MHz, and the amplifier is fully usable to 80 MHz. With ?5 V supplies, the maximum output swing is 7 V p-p.Because of the X-AMP? architecture, frequency response is maintained across the entire gain range of the VGA. The differential gain control interface provides precise linear in dB gain scaling of 50 dB/V over the temperature span of ?55?C to +125?C and is simple to interface with a variety of external sources.The large supply voltage range makes the AD8336 suited for industrial medical applications and video circuits. Dual-supply operation enables bipolar input signals, such as those generated by photodiodes or photomultiplier tubes.The fully independent voltage feedback preamplifier allows both inverting and noninverting gain topologies. The AD8336 can be used within the specified gain range of ?14 dB to +60 dB by selecting a preamplifier gain between 6 dB and 26 dB and choosing appropriate feedback resistors. For the nominal preamplifier gain of 4?, the overall gain range is ?14 dB to +46 dB.If required, quiescent power is limited to a safe level by asserting the PWRA pin.APPLICATIONS Industrial process controls High performance AGC systems I/Q signal processing Video Industrial and medical ultrasound Radar receivers

The AD8340 vector modulator performs arbitrary amplitude and phase modulation of an RF signal. Because the RF signal path is linear, the original modulation is preserved. This part can be used as a general-purpose RF modulator, a variable attenuator/phase shifter, or a remodulator. The amplitude can be controlled from a maximum of ?2 dB to less than ?32 dB, and the phase can be shifted continuously over the entire 360? range. For maximum gain, the AD8340 delivers an OP1dB of 11 dBm, an OIP3 of 24 dBm, and an output noise floor of ?149 dBm/Hz, independent of phase. It operates over a frequency range of 700 MHz to 1.0 GHz.The baseband inputs in Cartesian I and Q format control the amplitude and phase modulation imposed on the RF input signal. Both I and Q inputs are dc-coupled with a ?500 mV differential full-scale range. The maximum modulation band- width is 230 MHz, which can be reduced by adding external capacitors to limit the noise bandwidth on the control lines.Both the RF inputs and outputs can be used differentially or single-ended and must be ac-coupled. The RF input and output impedances are nominally 50 ? over the operating frequency range. The DSOP pin allows the output stage to be disabled quickly to protect subsequent stages from overdrive. The AD8340 operates off supply voltages from 4.75 V to 5.25 V while consuming approximately 130 mA.The AD8340 is fabricated using the Analog Devices, Inc. proprietary, high performance 25 GHz SOI complementary bipolar IC process. It is available in a 24-lead RoHS-compliant LFCSP package and operates over a ?40?C to +85?C temperature range. Evaluation boards are available.APPLICATIONS RF PA linearization/RF predistortion Amplitude and phase modulation Variable attenuators and phase shifters CDMA2000, GSM/EDGE linear power amplifiers Smart antennas

The AD8345 is a silicon RFIC quadrature modulator, designed for use from 140 MHz to 1000 MHz. The part provides a very low noise floor and high output power supporting a significant improvement in output dynamic range. The AD8345 needs a low LO drive level and provides a fully specified 50 ? buffered output.The part provides excellent amplitude and phase balance and sideband suppression specifications to enable higher order/capacity QAM modulated radios.Additionally the AD8345 has been tested and supports the requirements as an IF modulator within CDMA/GSM/W-CDMA cellular infrastructure equipment and as a direct conversion modulator for the 800 ? 900 MHz cellular bands.The AD8345 is supplied in 16-lead Thin Shrunk Small Outline (TSSOP) package with exposed paddle, and fully specified over ?40?C to +85?C temperature range.AVAILABILITYSamples part number (AD8345ARE) and an evaluation board, part number (AD8345-EVAL) are available.OTHER MODULATOR / DEMODULATOR PRODUCTSAD8346 ? 800 MHz to 2.5 GHz Lower Power Direct Up-Conversion ModulatorAD8347 ? 800 MHz to 2.7 GHz Direct Conversion DemodulatorAD8349 ? 700 MHz to 2.7 GHz Low Noise, Higher Output Drive, RF Modulator

The AD8346 is a silicon I/Q quadrature modulator, designed to be used from 800 MHz to 2.5 GHz. The part is optimized for lower power applications, yet provides a very low noise floor and high output power for the given supply current.The AD8346 requires only ?10 dBm LO drive level and provides a fully specified 50 ohm buffered output.The part provides excellent amplitude and phase balance and sideband suppression specifications to enable higher order/capacity QAM modulated radios.Additionally the AD8346 has been tested and provides ?72 dBc ACPR when used in a direct up-conversion CDMA IS95 modulator.The AD8346 is supplied in 16-lead Thin Shrunk Small Outline (TSSOP) package, and fully specified over ?40 to 85 degC temperature range.AVAILABILITYSamples part number (AD8346ARU) and an evaluation board, part number (AD8346-EVAL) are availableOTHER MODULATOR/DEMODULATOR PRODUCTSAD8345 - 250 MHz - 1 GHz RF/IF Quadrature ModulatorAD8347 - 800 MHz - 2.7 GHz RF/IF Quadrature DemodulatorAD8349 - 800 MHz - 2.7 GHz Direct Up-Conversion Quadrature Modulator