Single/Dual, +15 V/5 V, 256-Position, I2C-Compatible Digital Potentiometer Features:AD5280: 1 channelAD5282: 2 channels256 positions+10 V to +15 V single supply; 5.5 V dual-supply operationFixed terminal resistance: 20 k, 50 k, 200 kLow temperature coefficient: 30 ppm/CPower-on midscale preset1 Programmable resetOperating temperature: 40°C to +85°CI2C-compatible interface

Four-ADC, Two-DAC, Low Power Codec with Audio Processor Features: Programmable audio processing engine Fast (up to 768 kHz) and slow processing paths Biquad filters, limiters, volume controls, and mixing Low latency, 24-bit ADCs and DACs 102 dB SNR (through PGA and ADC with A weighted filter) 108 dB combined SNR (through DAC and headphone with A weighted filter) Serial port sampling rate from 8 kHz to 192 kHz 5 μs analog-to-analog latency 4 single-ended analog inputs, configurable as microphone or line inputs Dual stereo digital microphone inputs Stereo analog audio output, single-ended or differential, configurable as either line output or headphone driver PLL supporting any input clock rate from 8 MHz to 27 MHz Full duplex, asynchronous sample rate converters (ASRCs) Power supplies Analog and digital input/output of 1.8 V to 3.3 V Digital signal processing (DSP) core of 1.1 V to 1.8 V Low power I2C and SPI control interfaces, self boot from I2C EEPROM 7 multipurpose (MPx) pins for digital controls and outputs

Up to 1GHz SHARC+ DSP with 640KB L1, 1024KB Shared L2 SRAM, 400-Ball CSP_BGA Features:SHARC+ Core infrastructure 800MHz (max) or 1GHz (max) Core clock frequency 640KB on-chip Level 1 (L1) SRAM memory (with parity) increases low latency performance 32-bit, 40-bit & 64-bit floating point support 32-bit fixed point Byte, short-word, word, long-word addressedMemory 1024KB on-chip Level 2 (L2) SRAM with ECC protection - eliminates need for external memory in many use cases One Level 3 (L3) interface optimized for low system power, providing 16-bit interface to DDR3 (supporting 1.35 V capable DDR3L devices) SDRAM devices16-bit DDR/DDR3L Memory Controller 1.35V support for DDR3LAdvanced Hardware Accelerators Enhanced FIR/IIR offload engines running at Core clock frequency for added processing power Security Crypto Engines with OTPPowerful DMA SystemInnovative Digital Audio Interface (DAI) includes: 8x Full SPORT interfaces w/TDM & I2S modes 2x S/PDIF Rx/Tx, 8 ASRC pairs 4x Precision Clock Generators 28 BuffersOther Peripheral Connectivity / Interfaces: 2x Quad SPI, 1x Octal SPI MLB 3-pin 6x I2C,3x UARTs 2x Link Ports 10x General Purpose Timer, 1x General Purpose Counter 2x Watchdog Timers 4-ch 12bit Housekeeping ADCs 40 GPIO pins, 28 DAI pins Thermal SensorPackage 17mm x 17mm (0.8mm pitch) 400-ball CSP_BGAAdditional Features Security and Protection Crypto hardware accelerators Fast secure boot with IP protection Enhanced FIR and IIR accelerators running up to 1 GHz AEC-Q100 qualified for automotive applications

Real-Time Ethernet Multiprotocol (REM) Switch Features: 144-lead CSP_BGA RoHS compliant package −40°C to +105°C industrial temperature range rating 3.3 V input/output buffers IEEE 802.3, 10 Mbps/100 Mbps, half and full duplex, IPv6 and IPv4 communication 2 independent Ethernet ports: 1 MII and 1 RMII interface per port Support for all industrial protocols PROFINET Class B and Class C with fast startup (Version 2.3) EtherNet/IP with QuickConnect, CIP Sync, and CIP Motion Modbus TCP EtherCAT Ethernet POWERLINK Host interface transfer rate: 32 bits per 28 ns Supports EtherCAT cycle times down to 12.5 μs and PROFINET cycle times down to 31.25 μs PI Net Load Class III capable DLR (supervisor and node, announce and beacon based), MRPD, HSR, PRP, shared device, controller redundancy IEEE 1588Version 2 support: ordinary clock; both peerto peer and end to end transparent clocks, raw frames, and UDP 8 independent timer signals synchronized with an internal precision timer 4 independently programmable timer signals for timer capture events or timer output events 4 timer signals create programmable periodic waveforms synchronized to the internal precision timer DCP, LLDP, DHCP, RSTP, VLAN, IGMP snooping support Forwarding table with aging and learning Drive LEDs for link activity

Up to 1GHz SHARC+ DSP with 640KB L1, 1024KB Shared L2 SRAM, 400-Ball CSP_BGA Features:SHARC+ Core infrastructure 800MHz (max) or 1GHz (max) Core clock frequency 640KB on-chip Level 1 (L1) SRAM memory (with parity) increases low latency performance 32-bit, 40-bit & 64-bit floating point support 32-bit fixed point Byte, short-word, word, long-word addressedMemory 1024KB on-chip Level 2 (L2) SRAM with ECC protection - eliminates need for external memory in many use cases One Level 3 (L3) interface optimized for low system power, providing 16-bit interface to DDR3 (supporting 1.35 V capable DDR3L devices) SDRAM devices16-bit DDR/DDR3L Memory Controller 1.35V support for DDR3LAdvanced Hardware Accelerators Enhanced FIR/IIR offload engines running at Core clock frequency for added processing power Security Crypto Engines with OTPPowerful DMA SystemInnovative Digital Audio Interface (DAI) includes: 8x Full SPORT interfaces w/TDM & I2S modes 2x S/PDIF Rx/Tx, 8 ASRC pairs 4x Precision Clock Generators 28 BuffersOther Peripheral Connectivity / Interfaces: 2x Quad SPI, 1x Octal SPI MLB 3-pin 6x I2C,3x UARTs 2x Link Ports 10x General Purpose Timer, 1x General Purpose Counter 2x Watchdog Timers 4-ch 12bit Housekeeping ADCs 40 GPIO pins, 28 DAI pins Thermal SensorPackage 17mm x 17mm (0.8mm pitch) 400-ball CSP_BGAAdditional Features Security and Protection Crypto hardware accelerators Fast secure boot with IP protection Enhanced FIR and IIR accelerators running up to 1 GHz AEC-Q100 qualified for automotive applications

The AD5280/AD5282 are single-channel and dual-channel, 256-position, digitally controlled variable resistors (VRs)2. The devices perform the same electronic adjustment function as a potentiometer, trimmer, or variable resistor. Each VR offers a completely programmable value of resistance between the A terminal and the wiper or the B terminal and the wiper. The fixed A-to-B terminal resistance of 20 kΩ, 50 kΩ, or 200 kΩ has a 1% channel-to-channel matching tolerance. The nominal temperature coefficient of both parts is 30 parts per million/ degrees centigrade (ppm/°C). Another key feature is that the parts can operate up to +15 V or ±5 V.Wiper position programming defaults to midscale at system power-on. When powered, the VR wiper position is programmed by an I2C-compatible, 2-wire serial data interface. The AD5280/ AD5282 feature sleep mode programmability. This allows any level of preset in power-up and is an alternative to a costly EEPROM solution. Both parts have additional programmable logic outputs that enable users to drive digital loads, logic gates, LED drivers, and analog switches in their system.The AD5280/AD5282 are available in thin, surface-mounted 14-lead TSSOP and 16-lead TSSOP. All parts are guaranteed to operate over the extended industrial temperature range of −40°C to +85°C. For 3-wire SPI-compatible interface applica-tions, see the AD5260/AD5262 product information on www.analog.com.Applications Multimedia, video, and audio Communications Mechanical potentiometer replacement Instrumentation: gain, offset adjustment Programmable voltage source Programmable current source Line impedance matching1 Assert shutdown and program the device during power-up, then deassert the shutdown to achieve the desired preset level.2 The terms digital potentiometer, VR, and RDAC are used interchangeably.

The AD5232 device provides a nonvolatile, dual-channel, digitally controlled variable resistor (VR) with 256-position resolution. This device performs the same electronic adjustment function as a mechanical potentiometer with enhanced resolution, solid state reliability, and superior low temperature coefficient performance. The versatile programming of the AD5232, performed via a microcontroller, allows multiple modes of operation and adjustment.In the direct program mode, a predetermined setting of the RDAC registers (RDAC1 and RDAC2) can be loaded directly from the microcontroller. Another important mode of operation allows the RDACx register to be refreshed with the setting previously stored in the corresponding EEMEM register (EEMEM1 and EEMEM2). When changes are made to the RDACx register to establish a new wiper position, the value of the setting can be saved into the EEMEMx register by executing an EEMEM save operation. After the settings are saved in the EEMEMx register, these values are automatically transferred to the RDACx register to set the wiper position at system power-on. Such operation is enabled by the internal preset strobe. The preset strobe can also be accessed externally.All internal register contents can be read via the serial data output (SDO). This includes the RDAC1 and RDAC2 registers, the corresponding nonvolatile EEMEM1 and EEMEM2 registers, and the 14 spare USER EEMEM registers that are available for constant storage.The basic mode of adjustment is the increment and decrement command instructions that control the wiper position setting register (RDACx). An internal scratch pad RDACx register can be moved up or down one step of the nominal resistance between Terminal A and Terminal B. This step adjustment linearly changes the wiper to Terminal B resistance (RWB) by one position segment of the device’s end-to-end resistance (RAB). For exponential/ logarithmic changes in wiper setting, a left/right shift command instruction adjusts the levels in ±6 dB steps, which can be useful for audio and light alarm applications.The AD5232 is available in a thin, 16-lead TSSOP package. All parts are guaranteed to operate over the extended industrial temperature range of −40°C to +85°C. An evaluation board, the EVAL-AD5232-10EBZ, is available.APPLICATIONS Mechanical potentiometer replacement Instrumentation: gain and offset adjustment Programmable voltage-to-current conversion Programmable filters, delays, and time constants Programmable power supply Low resolution DAC replacement Sensor calibration

The AD5235 is a dual-channel, nonvolatile memory, digitallycontrolled potentiometer with 1024-step resolution, offeringguaranteed maximum low resistor tolerance error of ±8%.The device performs the same electronic adjustment functionas a mechanical potentiometer with enhanced resolution, solidstate reliability, and superior low temperature coefficient performance.The versatile programming of the AD5235 via anSPI®-compatible serial interface allows 16 modes of operationand adjustment including scratchpad programming, memorystoring and restoring, increment/decrement, ±6 dB/step log taperadjustment, wiper setting readback, and extra EEMEM for user-definedinformation such as memory data for other components,look-up table, or system identification information.In the scratchpad programming mode, a specific setting canbe programmed directly to the RDAC register, which sets theresistance between Terminal W and Terminal A and Terminal Wand Terminal B. This setting can be stored into the EEMEMand is restored automatically to the RDAC register duringsystem power-on.The EEMEM content can be restored dynamically or throughexternal PR strobing, and a WP function protects EEMEMcontents. To simplify the programming, the independent orsimultaneous linear-step increment or decrement commandscan be used to move the RDAC wiper up or down, one step ata time. For logarithmic ±6 dB changes in the wiper setting, theleft or right bit shift command can be used to double or halve theRDAC wiper setting.The AD5235 patterned resistance tolerance is stored in theEEMEM. The actual end-to-end resistance can, therefore, beknown by the host processor in readback mode. The host canexecute the appropriate resistance step through a softwareroutine that simplifies open-loop applications as well asprecision calibration and tolerance matching applications.The AD5235 is available in a thin, 16-lead TSSOP package.The part is guaranteed to operate over the extended industrialtemperature range of −40°C to +85°C.Applications DWDM laser diode driver, optical supervisory systems Mechanical potentiometer replacement Instrumentation: gain, offset adjustment Programmable voltage-to-current conversion Programmable filters, delays, time constants Programmable power supply Low resolution DAC replacement Sensor calibration

The AD5241 / AD52421 provide a single-/dual-channel, 256-position, digitally controlled variable resistor (VR) device. These devices perform the same electronic adjustment function as a potentiometer, trimmer, or variable resistor. Each VR offers a completely programmable value of resistance between the A terminal and the wiper, or the B terminal and the wiper. For the AD5242, the fixed A-to-B terminal resistance of 10 kΩ, 100 kΩ, or 1 MΩ has a 1% channel-to-channel matching tolerance. The nominal temperature coefficient of both parts is 30 ppm/°C.Wiper position programming defaults to midscale at system power on. When powered, the VR wiper position is programmed by an I2C-compatible, 2-wire serial data interface. Both parts have two extra programmable logic outputs available that enable users to drive digital loads, logic gates, LED drivers, and analog switches in their system.The AD5241 / AD5242 are available in surface-mount, 14-lead SOIC and 16-lead SOIC packages and, for ultracompact solutions, 14-lead TSSOP and 16-lead TSSOP packages. All parts are guaranteed to operate over the extended temperature range of −40°C to +105°C.APPLICATIONS Multimedia, video, and audio Communications Mechanical potentiometer replacement Instrumentation: gain, offset adjustment Programmable voltage-to-current conversion Line impedance matching

The AD5243 and AD5248 provide a compact 3 mm × 4.9 mmpackaged solution for dual, 256-position adjustment applications.The AD5243 performs the same electronic adjustment functionas a 3-terminal mechanical potentiometer, and the AD5248performs the same adjustment function as a 2-terminal variableresistor. Available in four end-to-end resistance values (2.5 kΩ,10 kΩ, 50 kΩ, and 100 kΩ), these low temperature coefficientdevices are ideal for high accuracy and stability-variableresistance adjustments. The wiper settings are controllablethrough the I2C-compatible digital interface. The AD5248 hasextra package address decode pins, AD0 and AD1, allowingmultiple parts to share the same I2C, 2-wire bus on a PCB. Theresistance between the wiper and either endpoint of the fixedresistor varies linearly with respect to the digital code transferred into the RDAC latch. (The terms digital potentiometer, VR,and RDAC are used interchangeably.)Operating from a 2.7 V to 5.5 V power supply and consumingless than 6 µA allows the AD5243/AD5248 to be used inportable battery-operated applications.For applications that program the AD5243/AD5248 at thefactory, Analog Devices, Inc., offers device programmingsoftware running on Windows® NT/2000/XP operating systems.This software effectively replaces the need for external I2Ccontrollers, which in turn enhances the time to market ofsystems. An AD5243/AD5248 evaluation kit and software areavailable. The kit includes a cable and instruction manual.Applications Systems calibrations Electronics level settings Mechanical trimmers replacement in new designs Permanent factory printed circuit board (PCB) setting Transducer adjustment of pressure, temperature, position, chemical, and optical sensors RF amplifier biasing Gain control and offset adjustment