LT6402-6 300MHz differential In/Out ADC Driver
Analog Devices Inc.DC954A-A: Demo Board for the LT6402-6 300MHz Low Distortion, Low Noise Differential Amplifier/ADC Driver (AV = 6dB).
LTC2483 16-Bit Delta-Sigma ADC Demo Board (Requires DC590)
Analog Devices Inc.DC955A: Demo Board for the LTC2483 16-Bit Delta Sigma ADC with Easy Drive Input Current Cancellation and I2C Interface.
LTC2485 24-Bit Delta-Sigma ADC Demo Board (Requires DC590)
Analog Devices Inc.DC956A: Demo Board for the LTC2485 24-Bit Delta Sigma ADC with Easy Drive Input Current Cancellation and I2C Interface.
LT6600-10 Frequency (Fc) = 10MHz
Analog Devices Inc.DC962A-C: Demo Board for the LT6600-10 Very Low Noise, Differential Amplifier and 10MHz Lowpass Filter.
LT5560EDD | Low Power Up-Converting Mixer, Input 45-190MHz, Output 850-935MHz.
Analog Devices Inc.DC963B: Demo Board for the LT5560 0.01MHz to 4GHz Low Power Active Mixer.
LT5568EUF | 900MHz I/Q Modulator
Analog Devices Inc.DC966A: Demo Board for the LT5568 700MHz to 1050MHz High Linearity Direct Quadrature Modulator.
LTC3835EFE Demo Board | 4.5V ≤ VIN ≤ 36V, VOUT = 3.3V @ 5A
Analog Devices Inc.Demonstration circuit 967B is a single output high frequency step-down DC/DC controller featuring the low quiescent current LTC3835 in a 20-pin exposed pad TSSOP package. The DC967B is designed to generate a regulated 3.3V@5A output from 4.5V to 36V input voltage.
LTC7131-1 | 25A Monolithic Synchronous DC/DC Step-Down Converter with PMBus Interface
Analog Devices Inc.Demonstration circuit 2824A-A is a single output buck converter with 4.5V to 20V input voltage range featuring the LTC7131-1, a 25A monolithic synchronous stepdown converter with a PMBus interface. The output voltage is adjustable from 0.4V to 4V and the converter can supply up to 25A of load current.
The DC2824A-A powers up to default settings and produces power based on configuration resistors without the need for any serial bus communication, which allows easy evaluation of the DC/DC converter.
To fully explore the extensive power system management features of the part, download the GUI software LTpowerPlay® onto your PC and use ADI’s USB-to-PMBus dongle DC1613A to connect to the board.
LTpowerPlay allows users to monitor fault status and real-time telemetry of input and output voltages, input and output current, and internal IC die temperature. Programmable parameters include device address, output voltage, on/off control, and fault response to output overvoltage and output overcurrent.
The LTC7131-1 data sheet gives a complete description of this part, its operation and application information and must be read in conjunction with this quick start guide for DC2824A-A.
DC2832A-A
Analog Devices Inc.The LTM2810 is a complete galvanic digital ?Module? (micromodule) isolator. No external components are required. Individual 3V to 5.5V supplies power each side of the digital isolator. Separate logic supply pins allow easy interfacing with different logic levels from 1.62V to 5.5V, independent of the main supply.Module options are available with compatibility to SPI (LTM2810-S) and I2C (LTM2810-I), master mode only, specifications.The module includes an integrated transformer driver on the logic side and an LDO on the isolated side to regulate the rectified transformer output. The LDO output is nominally 5V but may be overdriven.Coupled inductors provide 7500VRMS of isolation between the input and output logic interface. This device is ideal for systems with different ground potentials, allowing uninterrupted communication through large common mode transients faster than 50kV/?s.APPLICATIONS EV/HEV Systems Industrial and Metering Systems Test and Measurement Equipment Medical Equipment
LT7182S | Dual Channel 6A, 20V, PolyPhase Step-Down Silent Switcher with Digital Power System Management
Analog Devices Inc.Demonstration Circuit 2836A is a dual-output PolyPhase® DC/DC synchronous step-down regulator with 4V to 20V input range featuring LT7182S. Each output can supply 6A continuous/9A maximum transient load current. LT7182S is a dual 6A monolithic step-down regulator utilizing second-generation Silent Switcher® technology to minimize EMI and reduce PCB layout sensitivity. It also integrates digital power system management function allowing for programmability and telemetry with a PMBus/I2C compliant serial interface. Please see LT7182S data sheet for more detailed information.
The demonstration circuit 2836A runs at 1MHz to minimize solution size. The peak efficiency at 12V input is 83.2% for 1.2V rail and 91.1% for 3.3V rail. The IC temperature rise is 70°C when both channels run at full load, 6A each, at 1MHz.
The demo board has EMI filters installed for both channels. The conducted and radiated EMI performances of the board (with EMI filters) are shown in Figure 2 of the demo manual. The red lines in Figure 2 are CISPR25 CLASS 5 limit.
DC2836A powers up to default settings and produces power based on configuration resistors without the need for any serial bus communication. This allows easy evaluation of the DC/DC converter. To fully explore the power system management features of the part, download the GUI software LTpowerPlay® onto your PC and use ADI’s I2C/SMBus/PMBus dongle DC1613A to connect to the board. LTpowerPlay allows the user to reconfigure the part on the fly and store the configuration in EEPROM, view telemetry of voltage, current, temperature and fault status.
GUI Download
The software can be downloaded from: LTpowerPlay
The LT7182S data sheet gives a complete description of the part, operation and application information. The data sheet must be read in conjunction with the demo manual for DC2836A.
For more details and instructions of LTpowerPlay, please refer to LTpowerPlay GUI for LT7182S Quick Start Guide.
LT8365 Demo Board | Low IQ Boost/SEPIC/Inverting Regulator with 150V, 1.5A Switch
Analog Devices Inc.Demonstration circuit 2838A features the LT8365 in a boost configuration. It operates with a switching frequency of 400kHz and is designed to convert a 9V to 30V source to 250V, with 10mA output current.
The demo board contains an optional third charge pump stage for applications requiring higher output voltages. If needed, remove R14 and install optional components. Output voltage sensing connections remain the same.
The LT8365 can be used for different topologies with input voltages up to 60V. However, component selection in this demo circuit restricts the input voltage to 30V.
The demo board contains a selectable jumper, JP1, to aid in the selection of the desired sync pin mode of operation. The default setting is Burst Mode® operation.
This layout is optimized for good EMI performance and small solution size. Input and output filters are necessary for CISPR 25 Class 5 emissions. Radiated emissions plots are included in this manual.
The data sheet gives a complete description of the device, operation and application information. The data sheet must be read in conjunction with this demo manual.
LT8648S Demo Board | 42V, 15A Synchronous Step-Down Silent Switcher 2
Analog Devices Inc.Demonstration Circuit 2841A is a 42V, 15A synchronous step-down Silent Switcher 2 with spread spectrum frequency modulation featuring the LT8648S. The demo board is designed for 5V output from a 5.7V to 42V input. The wide input range allows a variety of input sources, such as automotive batteries and industrial supplies. The LT8648S is a compact, ultralow emission, high efficiency, and high speed synchronous monolithic stepdown switching regulator. The integrated bypass capacitors optimize the fast current loops and make it easier to minimize EMI emissions by reducing layout sensitivity. Selectable spread spectrum mode further improves EMI performance, making it perfect solution to the noise sensitive applications.
Peak current mode control with minimum on-time of as small as 25ns allows high step-down conversion even at high frequency. The LT8648S switching frequency can be programmed either via oscillator resistor or external clock over a 200kHz to 2.2MHz range. The default frequency of demo circuit 2841A is 400kHz.
The SYNC/MODE pin on the demo board DC2841A is grounded (JP1 at BURST position) by default for low ripple Burst Mode® operation. It can be configured into different operation modes through JP1 and SYNC terminal (Table 1).
Figure 1 shows the efficiency of the circuit at 12V input and 24V input in force continuous mode without spread spectrum. To get accurate efficiency measurement, measure the input voltage at the VIN SENSE terminal and measure the output voltage at the VO SENSE terminal.
Figure 2 shows the LT8648S temperature rising on DC2841A demo board under different load conditions. The LT8648S is assembled in a 7mm × 4mm LQFN package with exposed pads for low thermal resistance. The rated maximum load current is 15A, while derating is necessary for certain input voltage and thermal conditions.
The demo board has an EMI filter installed. The EMI performance of the board is shown on Figure 3. The red line in Radiated EMI Performance is CISPR25 Class 5 peak limit. The figure shows that the circuit passes the test with a wide margin. To achieve EMI performance as shown in Figure 3, the input EMI filter is required and the input voltage should be applied at VIN_EMI terminal, and the test setup can be referred to the CISPR25 standards. If the input is applied to VIN terminal, the EMI filter is bypassed.
The LT8648S data sheet gives a complete description of the part, operation and application information. The data sheet must be read in conjunction with this demo manual for DC2841A. The layout recommendations for low EMI operation and maximum thermal performance are available in the data sheet section Low EMI PCB Layout and Thermal Considerations and Peak Output Current. Contact ADI applications engineer for support.
LTC7804 Demo Board | 6V ≥ VIN ≥ 24V, VOUT = 24V @ 6A
Analog Devices Inc.Demonstration circuit DC2846A is a DC/DC synchronous boost converter featuring the LTC7804 (MSE package), a spread spectrum or constant frequency current mode synchronous boost controller. The DC2846A generates a 24V output voltage and provides up to 6A of output current.
The 500kHz constant switching frequency operation results in a small and efficient circuit.
The main features of this board include:
Wide input voltage range: from 6V to 24V
Relatively high output power, up to 150W
Extremely low quiescent current, it’s 15µA at sleep mode and as low as 1µA at shutdown
Onboard low power bias supply
Ability to select spread spectrum or fixed frequency
Pulse-skipping mode, forced continuous operation or low ripple Burst Mode® operation at light loads
Synchronization with external clock
If VIN > VOUT, the DC2846A eliminates the usual boost topology losses by keeping the top MOSFET on
continuously.
The converter provides high output voltage accuracy
(typically ±2%) over a wide load range with no minimum
load requirement.
The DC2846A supports two ways of biasing step-up controllers: directly from the input voltage or output rail. The
third possibility is connecting voltage source to EXTVCC
terminal.
The DC2846A extremely wide switching frequency range from 100kHz to 3MHz. It can be synchronized to the external clock anywhere inside this range. The spread spectrum operation is used for reducing the peak radiated and conducted noise to simplify compliance with electromagnetic interference (EMI) standards.
The DC2846A has small circuit footprint. It is a high performance and cost-effective solution for telecom, automotive and Power over Ethernet applications.
DC2847A-KIT
Analog Devices Inc.The ADL5920 is an ultrawideband, bidirectional detector that simultaneously measures forward and reverse rms power levels in a signal path, along with the return loss.The forward and reverse power traveling through the integrated bidirectional bridge is measured using two 50 dB linear in dB rms detectors. The detector output voltages, available at the VRMSF and VRMSR pins, are proportional to the forward and reflected power in dBm. A third, differential, output produces a voltage proportional to the return loss (reflection coefficient) in dB, closely related to the voltage standing wave ratio (VSWR). The common-mode level of this output is externally adjustable through the VOCM pin.The primary transmission line of the bidirectional bridge, from RFIN to RFOUT (or vice versa) is dc-coupled and allows small amounts of dc bias current through the bridge. When dc-coupled to source and load, the positive and negative supply pins of the ADL5920 must be connected to +5 V and ?2.5 V, respectively (relative to the dc voltage at RFIN and RFOUT). The internal detector circuitry is also dc-coupled to the directional bridge to support measurements down to 9 kHz.The maximum input signal on each of the RF ports (RFIN and RFOOUT) is 30 dBm for open and shorted terminations and 33 dBm for a matched termination.The ADL5920 draws 160 mA from a 5 V supply and has a low power, power-down mode controlled through the PWDN/TADJS pin.The device is supplied in a 32-lead, 5 mm ? 5 mm LFCSP and is specified for ambient operating temperatures in the ?40?C to +85?C range.Multifunction pin names may be referenced by their relevant function only.Applications Industrial metering Broadband inline power and return loss measurement Transmit power control and automatic level control in wireless transmitters, signal generators, network analyzers, and wireless communications testers Condition based monitoring of system modules, cables, and connectors
DC2865A
Analog Devices Inc.The LT8393 is a synchronous 4-switch buck-boost LED controller that regulates LED current from input voltage above, below, or equal to the output voltage. The proprietary peak-buck peak-boost current mode control scheme allows adjustable and synchronizable 350kHz to 2MHz fixed frequency operation, or internal 25% triangle spread spectrum operation for low EMI. With 4V to 60V input, 0V to 100V output, and seamless low noise transitions between operation regions, the LT8393 is ideal for LED driver and battery charger applications in automotive, industrial, and battery-powered systems.The LT8393 provides both internal (up to 128:1) and external (up to 2000:1) LED current PWM dimming with 10V of high side PMOS gate drive. The CTRL pin provides flexible 20:1 analog dimming with ?3% LED current accuracy at 100mV full scale. Fault protection is provided to detect an open or short LED condition, during which the LT8393 retries, latches off, or keeps running.APPLICATIONS Automotive Head Lamps/Running Lamps High Voltage LED Lighting
LTC7871/LTC7060 48V-to-14V, 6-Phase, 2.5kW Bidirectional Supply/Charger
Analog Devices Inc.Demonstration circuit DC2886A is a high power, high efficiency six-phase bidirectional converter featuring the LTC7871 and LTC7060. The terminals labeled VHIGH and VLOW are either inputs or outputs depending on the direction of power flow. When the switch at SW1 is in the BUCK position, VLOW provides a 14V output and VHIGH is the input with a range of 30V to 70V. When the switch is in the BOOST position, VHIGH provides a 48V output and VLOW is the input with a range of 10V to 14V. The maximum VLOW current is 180A in both directions. The maximum output power is 2.5kW when operating as a buck within the input voltage range. When operating as a boost, the maximum output power is 2.4kW when the input voltage is 14V. External airflow is required when operating at maximum power. The MOSFETs in each phase are driven by the LTC7060 half bridge driver. Each LTC7060 gate driver is placed next to the MOSFETs and receives a PWM signal from the LTC7871.
The inductor current for each phase is sensed with a low 1mΩ sense resistor using a highly accurate AC/DC current sensing architecture with low power dissipation. The LTC7871’s constant-current loop provides a DC current limit for the current flowing in or out of the VLOW terminal depending on the state of the BUCK pin. This current can be programmed with the SETCUR pin and monitored with the IMON pin.
The DC2886A provides a SPI compatible serial port. With a DC2026C (Linduino® One) demo board and QuikEval™ software on a host computer, the user can:
Margin the regulated VLOW or VHIGH up or down.
Margin the DC current limit up or down with the SETCUR pin.
Adjust the frequency spread and modulation rate of the spread spectrum circuit, when spread spectrum is enabled.
Monitor the operational status and faults of the LTC7871.
Additional features of the DC2886A include:
Pin selectable light load operating modes
Buck: FCM, pulse-skipping and Burst Mode® Operation
Boost: FCM and pulse-skipping
SYNC and CLKOUT pins
Optional jumper to enable spread spectrum modulation
RUN, FAULT, PGOOD and PWNEN pins
BUCK pin to externally control the direction of power flow
Footprint for an optional heatsink
DC2899A
Analog Devices Inc.The LTM4655 is an ultralow noise 40V, dual 4A or single 8A DC/DC ?Module? regulator designed to meet the radiated emissions requirements of EN55022. Its channels are fully independent, parallelable and capable of delivering positive or negative output polarity. Conducted emission requirements can be met by adding standard filter components. Included in the package are the switching controllers, power MOSFETs, inductors, filters and support components. A 5V, 25mA LDO and clock generator enable phase interleaving of the power switching stages, for improved EMC performance.The LTM4655 can regulate positive VOUTn + voltages between 0.5V and 26.5V from a 3.1V to 40V input. The LTM4655 can regulate negative VOUTn ? voltages between ?0.5V and ?26.5V from a maximum input range of 3.6V to 40V, with the span from VINn to VOUTn ? not to exceed 40V. A switching frequency range of 250kHz to 3MHz is supported.The LTM4655 is offered in a 16mm ? 16mm ? 5.01mm BGA package with SnPb or RoHS compliant terminal finish.APPLICATIONS Automated Test and Measurement Avionics and Industrial Control Systems Video, Imaging and Instrumentation
LTM4663 Demo Board | Ultrathin 1.5A Thermoelectric Cooler (TEC) μModule Regulator
Analog Devices Inc.Demonstration circuit DC2902A is a thermoelectric cooler (TEC) regulator featuring the LTM4663 μModule regulator. The demo board has a 2.7V to 5.5V input voltage
range and can deliver up to 1.5A of sinking or sourcing current. Inside the LTM4663, a linear power stage works together with a PWM power stage to form an H-bridge
configuration. The direction of the current fed through the TEC can be either positive (for cooling mode), or negative (for heating mode). The LTM4663 has two built-in zero
drift, rail-to-rail chopper amplifiers which can serve as a thermistor input amplifier and form an analog temperature control loop. The LTM4663 provides a 1% accuracy
2.5V internal reference voltage to bias the thermistor temperature sensing circuit and to program the maximum TEC current and voltage limits for both the cooling and
heating modes.
The demo board has a default 2MHz switching frequency and can be synchronized to an external clock from 1.85MHz to 3.25MHz applied to the EN/SY input pin
(JP1: EN/SY). The clock high level must be above 2.1V and the clock low level must be below 0.8V. Maximum TEC current limit can be programmed with a resistor, R7
(default: 1.5A for cooling mode; –1.5A for heating mode). Maximum TEC voltage limit can be programmed with a resistor, R10 (default: 5V for cooling mode; –4.8V for heating
mode). Other features include VTEC output for TEC voltage monitor and ITEC output for TEC current monitor
The LTM4663 datasheet gives a complete description of the operation and application information. The datasheet must be read in conjunction with the demo manual.
DC2903A-A
Analog Devices Inc.The LTC2672 is a family of five-channel, 12-/16-bit current source, digital-to-analog converters (DACs) that provide five high compliance, current source outputs with guaranteed 0.6 V dropout at 200 mA. There are eight current ranges that are programmable per channel with full-scale outputs of up to 300 mA. The channels can be paralleled to allow either ultrafine adjustments of large currents or combined outputs of up to 1.5 A. A dedicated supply pin is provided for each output channel. Each channel can be operated from 2.1 V to VCC, and internal switches allow any output to be pulled to the optional negative supply. The LTC2672 includes a precision integrated 1.25 V reference (10 ppm/?C maximum), with the option to use an external reference. The serial peripheral interface (SPI)-compatible, 3?wire serial interface operates on logic levels as low as 1.71 V and at clock rates as high as 50 MHz.Note that throughout this data sheet, multifunction pins, such as CS/LD, are referred to by the entire pin name or by a single function of the pin.APPLICATIONS Tunable lasers Semiconductor optical amplifier biasing Resistive heaters Current mode biasing
DC2903A-B
Analog Devices Inc.The LTC2672 is a family of five-channel, 12-/16-bit current source, digital-to-analog converters (DACs) that provide five high compliance, current source outputs with guaranteed 0.6 V dropout at 200 mA. There are eight current ranges that are programmable per channel with full-scale outputs of up to 300 mA. The channels can be paralleled to allow either ultrafine adjustments of large currents or combined outputs of up to 1.5 A. A dedicated supply pin is provided for each output channel. Each channel can be operated from 2.1 V to VCC, and internal switches allow any output to be pulled to the optional negative supply. The LTC2672 includes a precision integrated 1.25 V reference (10 ppm/?C maximum), with the option to use an external reference. The serial peripheral interface (SPI)-compatible, 3?wire serial interface operates on logic levels as low as 1.71 V and at clock rates as high as 50 MHz.Note that throughout this data sheet, multifunction pins, such as CS/LD, are referred to by the entire pin name or by a single function of the pin.APPLICATIONS Tunable lasers Semiconductor optical amplifier biasing Resistive heaters Current mode biasing
