The AD97481 is an 8-bit resolution, wideband, third generation member of the TxDAC series of high performance, low power CMOS digital-to-analog converters (DACs). The TxDAC family, consisting of pin-compatible 8-, 10-, 12-, and 14-bit DACs, is specifically optimized for the transmit signal path of communication systems. All of the devices share the same interface options, small outline package, and pinout, providing an upward or downward component selection path based on performance, resolution, and cost. The AD9748 offers exceptional ac and dc performance while supporting update rates up to 210 MSPS. The AD9748?s low power dissipation makes it well suited for portable and low power applications. Its power dissipation can be further reduced to 60 mW with a slight degradation in performance by lowering the full-scale current output. In addition, a power-down mode reduces the standby power dissipation to approximately 15 mW. A segmented current source architecture is combined with a proprietary switching technique to reduce spurious components and enhance dynamic performance. Edge-triggered input latches and a 1.2 V temperature-compensated band gap reference have been integrated to provide a complete monolithic DAC solution. The digital inputs support 3 V CMOS logic families. PRODUCT HIGHLIGHTS 32-lead LFCSP. The AD9748 is the 8-bit member of the pin-compatible TxDAC family, which offers excellent INL and DNL performance. Differential or single-ended clock input (LVPECL or CMOS), supports 210 MSPS conversion rate. Data input supports twos complement or straight binary data coding. Low power: Complete CMOS DAC function operates on 135 mW from a 2.7 V to 3.6 V single supply. The DAC full-scale current can be reduced for lower power operation, and a sleep mode is provided for low power idle periods. On-chip voltage reference: The AD9748 includes a 1.2 V temperature-compensated band gap voltage reference.?APPLICATIONS Communications Direct digital synthesis (DSS) Instrumentation

The AD9761 is a complete dual channel, high speed, 10-bitCMOS DAC. The AD9761 has been developed specifically foruse in wide bandwidth communication applications (e.g., spreadspectrum) where digital I and Q information is being processedduring transmit operations. It integrates two 10-bit, 40 MSPSDACs, dual 2x interpolation filters, a voltage reference, anddigital input interface circuitry. The AD9761 supports a20 MSPS per channel input data rate that is then interpolatedby 2x up to 40 MSPS before simultaneously updating eachDAC.The interleaved I and Q input data stream is presented to thedigital interface circuitry, which consists of I and Q latches as wellas some additional control logic. The data is de-interleaved backinto its original I and Q data. An on-chip state machine ensures theproper pairing of I and Q data. The data output from each latch isthen processed by a 2x digital interpolation filter that eases thereconstruction filter requirements. The interpolated output of eachfilter serves as the input of their respective 10-bit DAC.The DACs utilize a segmented current source architecture combinedwith a proprietary switching technique to reduce glitchenergy and to maximize dynamic accuracy. Each DAC providesdifferential current output thus supporting single-ended ordifferential applications. Both DACs are simultaneously updatedand provide a nominal full-scale current of 10 mA. Also,the full-scale currents between each DAC are matched to within0.07 dB (i.e., 0.75%), thus eliminating the need for additionalgain calibration circuitry.The AD9761 is manufactured on an advanced low cost CMOSprocess. It operates from a single supply of 2.7 V to 5.5 V andconsumes 200 mW of power. To make the AD9761 complete italso offers an internal 1.20 V temperature-compensated bandgapreference.PRODUCT HIGHLIGHTS Dual 10-Bit, 40 MSPS DACs A pair of high performance 40 MSPS DACs optimized for low distortion performance provide for flexible transmission of I and Q information. 2x Digital Interpolation Filters Dual matching FIR interpolation filters with 62.5 dB stopband rejection precede each DAC input, thus reducing the DACs? reconstruction filter requirements. Low Power Complete CMOS dual DAC function operates on a low 200 mW on a single supply from 3 V to 5.5 V. The DAC full-scale current can be reduced for lower power operation, and a sleep mode is provided for power reduction during idle periods. On-Chip Voltage Reference The AD9761 includes a 1.20 V temperature-compensated band gap voltage reference. Single 10-Bit Digital Input Bus The AD9761 features a flexible digital interface that allows each DAC to be addressed in a variety of ways including different update rates. Small Package The AD9761 offers the complete integrated function in a compact 28-lead SSOP package. Product Family The AD9761 Dual Transmit DAC has a pair of Dual Receive ADC companion products, the AD9281 (8 bits) and AD9201 (10 bits).

The AD9763/AD9765/AD9767 are dual-port, high speed, 2-channel, 10-/12-/14-bit CMOS DACs. Each part integratestwo high quality TxDAC+? cores, a voltage reference, and digital interface circuitry into a small 48-lead LQFP. The AD9763/AD9765/AD9767 offer exceptional ac and dc performancewhile supporting update rates of up to 125 MSPS.The AD9763/AD9765/AD9767 have been optimized forprocessing I and Q data in communications applications. Thedigital interface consists of two double-buffered latches as well as control logic. Separate write inputs allow data to be written to the two DAC ports independent of one another. Separate clocks control the update rate of the DACs.A mode control pin allows the AD9763/AD9765/AD9767 to interface to two separate data ports, or to a single interleavedhigh speed data port. In interleaving mode, the input datastream is demuxed into its original I and Q data and then latched. The I and Q data is then converted by the two DACsand updated at half the input data rate.The GAINCTRL pin allows two modes for setting the full-scale current (IOUTFS) of the two DACs. IOUTFS for each DAC can be set independently using two external resistors, or IOUTFS for both DACs can be set by using a single external resistor. See theGain Control Mode section for important date codeinformation on this feature.The DACs utilize a segmented current source architecturecombined with a proprietary switching technique to reduce glitch energy and maximize dynamic accuracy. Each DAC providesdifferential current output, thus supporting single-ended or differential applications. Both DACs of the AD9763, AD9765, or AD9767 can be simultaneously updated and can provide anominal full-scale current of 20 mA. The full-scale currentsbetween each DAC are matched to within 0.1%.The AD9763/AD9765/AD9767 are manufactured on anadvanced, low cost CMOS process. They operate from a singlesupply of 3.3 V to 5 V and consume 380 mW of power.Product HighlightsThe AD9763/AD9765/AD9767 are members of a pin-compatible family of dual TxDACs providing 8-, 10-, 12-, and 14-bit resolution.Dual 10-/12-/14-Bit, 125 MSPS DACs. A pair of high performance DACs for each part is optimized for low distortion performance and provides flexible transmission of I and Q information.Matching. Gain matching is typically 0.1% of full scale, and offset error is better than 0.02%.Low Power. Complete CMOS dual DAC function operates on 380 mW from a 3.3 V to 5 V single supply. The DAC full-scalecurrent can be reduced for lower power operation, and a sleepmode is provided for low power idle periods.On-Chip Voltage Reference. The AD9763/AD9765/AD9767each include a 1.20 V temperature-compensated band gapvoltage reference.Dual 10-/12-/14-Bit Inputs. The AD9763/AD9765/AD9767each feature a flexible dual-port interface, allowing dual orinterleaved input data.ApplicationsCommunicationsBase stationsDigital synthesisQuadrature modulation3D ultrasound

The AD9913 is a complete direct digital synthesizer (DDS) designed to meet the stringent power consumption limits of portable, handheld, and battery-powered equipment. The AD9913 features a 10-bit digital-to-analog converter (DAC) operating up to 250 MSPS. The AD9913 uses advanced DDS technology, coupled with an internal high speed, high performance DAC to form a complete, digitally-programmable, high frequency synthesizer capable of generating a frequency agile analog output sinusoidal waveform at up to 100 MHz.The AD9913 provides fast frequency hopping and fine tuning resolution. The AD9913 also offers fine resolution phase offset control. Control words are loaded into the AD9913 through the serial or parallel I/O port. The AD9913 also supports a user-defined linear sweep mode of operation for generating highly linearized swept waveforms of frequency. To support various methods of generating a system clock, the AD9913 includes an oscillator, allowing a simple crystal to be used as the frequency reference, as well as a high speed clock multiplier to convert the reference clock frequency up to the full system clock rate. For power saving considerations, many of the individual blocks of the AD9913 can be powered down when not in use.The AD9913 operates over the extended industrial temperature range of ?40?C to +85?C.APPLICATIONS Portable and handheld equipment Agile LO frequency synthesis Programmable clock generator FM chirp source for radar and scanning systems

The AD9961/AD9963 are pin-compatible, 10-/12-bit, lowpower MxFE? converters that provide two ADC channels withsample rates of 100 MSPS and two DAC channels with samplerates to 170 MSPS. These converters are optimized for transmit and receive signal paths of communication systems requiring lowpower and low cost. The digital interfaces provide flexibleclocking options. The transmit is configurable for 1?, 2?, 4?,and 8? interpolation. The receive path has a bypassable 2?decimating low-pass filter.The AD9961 and AD9963 have five auxiliary analog channels.Three are inputs to a 12-bit ADC. Two of these inputs can beconfigured as outputs by enabling 10-bit DACs. The other two channels are dedicated outputs from two independent 12-bit DACs.The high level of integrated functionality, small size, and lowpower dissipation of the AD9961/AD9963 make them well-suited for portable and low power applications.APPLICATIONS Wireless infrastructure Picocell, femtocell basestations Medical instrumentation Ultrasound AFE Portable instrumentation Signal generators, signal analyzers

The ADA4432-1 is a single-ended output fully integrated video reconstruction filter that combines overvoltage protection (short-to-battery [STB] protection) and short-to-ground (STG) protection on the outputs, with excellent video specifications and low power consumption. The combination of STB protection and robust ESD tolerance allows the ADA4432-1 to provide superior protection in the hostile automotive environment.The ADA4432-1 is a single-ended input/single-ended output video filter capable of driving long back-terminated cables.The short-to-battery protection integrated into the ADA4432-1 protects against both dc and transient overvoltage events, caused by an accidental short to a battery voltage up to 18 V. The Analog Devices, Inc., short-to-battery protection eliminates the need for large output coupling capacitors and other complicated circuits used to protect standard video amplifiers, saving space and cost.The ADA4432-1 features a high-order filter with ?3 dB cutoff frequency response at 10 MHz and 45 dB of rejection at 27 MHz. The ADA4432-1 features an internally fixed gain of 2 V/V. This makes the ADA4432-1 ideal for SD video applications, including NTSC and PAL.The ADA4432-1 operatea on single supplies as low as 2.6 V and as high as 3.6 V while providing the dynamic range required by the most demanding video systems.The ADA4432-1 is offered in an 8-lead, 3 mm ? 3 mm LFCSP package and a 6-lead SOT-23 package. It is rated for operation over the wide automotive temperature range of ?40?C to +125?C.Appplications Automotive rearview cameras Automotive video electronic control units (ECUs) Surveillance video systems

The ADA4530-1 is a femtoampere (10?15 A) level input bias current operational amplifier suitable for use as an electrometer that also includes an integrated guard buffer. It has an operating voltage range of 4.5 V to 16 V, enabling it to operate in conventional 5 V and 10 V single supply systems as well as ?2.5 V and ?5 V dual supply systems.It provides ultralow input bias currents that are production tested at 25?C and at 125?C to ensure the device meets its performance goals in user systems. The integrated guard buffer isolates the input pins from leakage in the printed circuit board (PCB), minimizes board component count, and enables easy system design. The ADA4530-1 is available in an industry-standard surface-mount 8-lead SOIC package with a unique pinout optimized to prevent signals from coupling between the sensitive input pins, the power supplies, and the output pin while enabling easy routing of the guard ring traces.The ADA4530-1 also offers low offset voltage, low offset drift, and low voltage and current noise needed for the types of applications that require such low leakages.To maximize the dynamic range of the system, the ADA4530-1 has a rail-to-rail output stage that can typically drive to within 30 mV of the supply rails under a 10 k? load.The ADA4530-1 operates over the ?40?C to +125?C industrial temperature range and is available in an 8-lead SOIC package.Applications Laboratory and analytical instrumentation: spectrophotometers, chromatographs, mass spectrometers, and potentiostatic and amperostatic coulometry Instrumentation: picoammeters and coulombmeters Transimpedance amplifier (TIA) for photodiodes, ion chambers, and working electrode measurements High impedance buffering for chemical sensors and capacitive sensors

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