Digital Potentiometer ICs

ENERGY MEASUREMENT IC, 1-PHASE, LQFP-100; IC Function: Single Phase Energy Measurement IC with RTC, LCD Driver; Supply Voltage Min: 3V; Supply Voltage Max: 3.6V; IC Package Type: LQFP; No. of Pins: 100Pins; Operating Temperature Min: -40°C; Operating Temperature Max: 85°C; Product Range: -; Automotive Qualification Standard: -; RoHS Phthalates Compliant: To Be Advised; MSL: MSL 3 - 168 hours

Up-Down Converters GaAs MMIC I/Q Upconvert SMT, 5.5-8.6 GHz

Data Acquisition ADCs/DACs - Specialised 20-Bit, 8-channel Sim Sampling DAQ System

AD4858 Data Acquisition System (DAS)

Analog Devices' AD4858 is a high-performance, buffered, simultaneous sampling Data Acquisition System (DAS) featuring configurable SoftSpan ranges for each channel.

Key Features:

• Performance: The AD4858 features an 11 MHz bandwidth, picoamp input analog buffers, and a 120 dB common-mode rejection ratio (CMRR). This enables direct digitization of input signals with varying swings on INx+ and INx−.
• Precision: With ±160 μV integral nonlinearity (INL), no missing codes at 20 bits, a 97.2 dB signal-to-noise ratio (SNR), and a 111.4 dB dynamic range (DR), it is ideal for high accuracy, throughput, and precision applications.
• Flexibility: It supports 24-bit oversampling for enhanced SNR and dynamic range. Per-channel offset, gain, and phase adjustments allow for calibration and removal of system-level errors before data acquisition.
• Digital Interface: The AD4858 features a serial peripheral interface (SPI) register configuration bus (0.9 V to 5.25 V) and supports both LVDS and CMOS data output buses. Users can optimize bus width and throughput by employing between one and eight lines of data output in CMOS mode.
• Evaluation Kit: The EVAL-AD4858FMCZ evaluation kit demonstrates the AD4858's performance and provides access to various configuration options via an easy-to-use ACE plug-in graphical interface.

Applications:

• Automatic test equipment
• Avionics and aerospace
• Instrumentation and control systems
• Semiconductor manufacturing
• Test and measurement

Telecom Interface ICs 4x4 16/4x3 12 Chnl T1/T1 Framer

Telecom Interface ICs 3.3/5V Quad T1/E1 Transceiver

The AD52521 is a dual-channel, I2C, nonvolatile memory,digitally controlled potentiometer with 256 positions. These devices perform the same electronic adjustmentfunctions as mechanical potentiometers, trimmers, andvariable resistors. The parts’ versatile programmability allowsmultiple modes of operation, including read/write access in theRDAC and EEMEM registers, increment/decrement of resistance,resistance changes in ±6 dB scales, wiper setting readback,and extra EEMEM for storing user-defined information, such asmemory data for other components, look-up table, or systemidentification information.The AD5251/AD5252 allow the host I2C controllers to writeany of the 64-/256-step wiper settings in the RDAC registersand store them in the EEMEM. Once the settings are stored,they are restored automatically to the RDAC registers at systempower-on; the settings can also be restored dynamically.The AD5251/AD5252 provide additional increment,decrement, +6 dB step change, and –6 dB step change insynchronous or asynchronous channel update mode. Theincrement and decrement functions allow stepwise linearadjustments, with a ± 6 dB step change equivalent to doublingor halving the RDAC wiper setting. These functions are usefulfor steep-slope, nonlinear adjustments, such as white LEDbrightness and audio volume control.The AD5251/AD5252 have a patented resistance-tolerancestoring function that allows the user to access the EEMEM andobtain the absolute end-to-end resistance values of the RDACsfor precision applications.The AD5251/AD5252 are available in TSSOP-14 packages.AD5251 has only 50 kΩ resistance options and AD5252 isavailable in 1 kΩ, 10 kΩ, 50 kΩ, and 100 kΩ options. All partsare guaranteed to operate over the –40°C to +105°C extendedindustrial temperature range.APPLICATIONS Mechanical potentiometer replacement General-purpose DAC replacement LCD panel VCOM adjustment White LED brightness adjustment RF base station power amp bias control Programmable gain and offset control Programmable voltage-to-current conversion Programmable power supply Sensor calibrations1 Protected by U.S. Patent 7,688,240.

The AD5253 / AD5254 are quad-channel, I2C, nonvolatile memory, digitally controlled potentiometers with 64/256 positions, respectively. These devices perform the same electronic adjustment functions as mechanical potentiometers, trimmers, and variable resistors.The parts’ versatile programmability allows multiple modes of operation, including read/write access in the RDAC and EEMEM registers, increment/decrement of resistance, resistance changes in ±6 dB scales, wiper setting readback, and extra EEMEM for storing user-defined information, such as memory data for other components, look-up table, or system identification information.The AD5253 / AD5254 allow the host I2C controllers to write any of the 64-/256-step wiper settings in the RDAC registers and store them in the EEMEM. Once the settings are stored, they are restored automatically to the RDAC registers at system power-on; the settings can also be restored dynamically.The AD5253 / AD5254 provide additional increment, decrement, +6 dB step change, and –6 dB step change in synchronous or asynchronous channel update mode. The increment and decrement functions allow stepwise linear adjustments, with a ± 6 dB step change equivalent to doubling or halving the RDAC wiper setting. These functions are useful for steep-slope, nonlinear adjustments, such as white LED brightness and audio volume control.The AD5253 / AD5254 have a patented resistance-tolerance storing function that allows the user to access the EEMEM and obtain the absolute end-to-end resistance values of the RDACs for precision applications.The AD5253 / AD5254 are available in TSSOP-20 packages in 1 kΩ, 10 kΩ, 50 kΩ, and 100 kΩ options. All parts are guaranteed to operate over the –40°C to +105°C extended industrial temperature range. In this data sheet, the nonvolatile memory and EEMEM terms are used interchangeably, as are the digital potentiometer and RDAC terms.APPLICATIONS Mechanical potentiometer replacement Low resolution DAC replacement RGB LED backlight control White LED brightness adjustment RF base station power amp bias control Programmable gain and offset control Programmable attenuators Programmable voltage-to-current conversion Programmable power supply Programmable filters Sensor calibrations

The AD5290 is one of the few high voltage, high performance, and compact digital potentiometers1 in the market at present. This device can be used as a programmable resistor or resistor divider. The AD5290 performs the same electronic adjustment function as mechanical potentiometers, variable resistors, and trimmers, with enhanced resolution, solid-state reliability, and superior temperature stability.With digital rather than manual control, the AD5290 provides layout flexibility and allows closed-loop dynamic controllability.The AD5290 is available in MSOP-10 package and has 10 kΩ, 50 kΩ, and 100 kΩ options. All parts are guaranteed to operate over the –40°C to +125°C extended automotive temperature range.Applications High voltage DAC Programmable power supply Programmable gain and offset adjustment Programmable filters and delays Actuator control Audio volume control Mechanical potentiometer replacement1 The RDAC segmentation is protected by U.S. Patent Number 5,495,245.

The AD725 is a very low cost general purpose RGB to NTSC/PAL encoder that converts red, green and blue color componentsignals into their corresponding luminance (basebandamplitude) and chrominance (subcarrier amplitude and phase)signals in accordance with either NTSC or PAL standards.These two outputs are also combined on-chip to provide acomposite video output. All three outputs are available separatelyat voltages of twice the standard signal levels as requiredfor driving 75 Ω, reverse-terminated cables.An evaluation board is available for this product and may be ordered using the following product number: AD725-EB.