AD5112

PRODUCTION

Single Channel, 64-Position, I2C, ±8% Resistor Tolerance, Nonvolatile Digital Potentiometer

Data Sheet (Rev. D) Product Selection Table
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Overview

  • Nominal resistor tolerance error: ±8% maximum
  • Wiper current: ±6 mA
  • Rheostat mode temperature coefficient: 35 ppm/°C
  • Low power consumption: 2.5 μA max @ 2.7 V and 125°C
  • Wide bandwidth: 4 MHz (5 kΩ option)
  • Power-on EEPROM refresh time < 50 μs
  • 50-year typical data retention at 125°C
  • 1 million write cycles
  • 2.3 V to 5.5 V analog supply operation
  • 1.8 V to 5.5 V logic supply operation
  • Wide operating temperature: −40°C to +125°C
  • Thin, 2 mm × 2 mm × 0.55 mm 8-lead LFCSP package

The AD5112 provides a nonvolatile solution for 64-position adjustment applications, offering guaranteed low resistor tolerance errors of ±8% and up to ±6 mA current density in the A, B, and W pins. The low resistor tolerance, low nominal temperature coefficient and high bandwidth simplify open-loop applications, as well as tolerance matching applications.

The new low wiper resistance feature minimizes the wiper resistance in the extremes of the resistor array to only 45 Ω, typical.

The wiper settings are controllable through an I2C-compatible digital interface that is also used to readback the wiper register and EEPROM content. Resistor tolerance is stored within EEPROM, providing an end-to-end tolerance accuracy of 0.1%.

The AD5112 is available in a 2 mm × 2 mm LFCSP package. The parts are guaranteed to operate over the extended industrial temperature range of −40°C to +125°C.

APPLICATIONS

  • Mechanical potentiometer replacement
  • Portable electronics level adjustment
  • Audio volume control
  • Low resolution DAC
  • LCD panel brightness and contrast control
  • Programmable voltage to current conversion
  • Programmable filters, delays, time constants
  • Feedback resistor programmable power supply
  • Sensor calibration
AD5112
Single Channel, 64-Position, I2C, ±8% Resistor Tolerance, Nonvolatile Digital Potentiometer
AD5110/AD5112/AD5114 Functional Block Diagram AD5110/AD5112/AD5114 Pin Configuration
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Documentation

Data Sheet 1

User Guide 1

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Software Resources

Device Drivers 2

Tools & Simulations

IBIS Model 1

Evaluation Kits

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schematic 1
EVAL-AD5110SDZ

AD5110 Evaluation Board

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Product Details

The Evaluation board for the AD5110 contains a SDP connection and software which allows the AD5110 to be controlled from an SDP board.

This evaluation board requires an SDP Controller board for connection to the PC. The SDP controller board connects to the PC via USB 2.0. The evaluation board will connect to the SDP controller board. The evaluation board cannot be connected directly to the PC. The evaluation software running on the PC will communicate with the evaluation board through the SDP Controller board.

The SDP Controller board is a separate list item in the ordering guide below (EVAL-SDP-CS1Z). If you have not previously purchased an SDP Controller board, please do so to ensure a full evaluation setup.
EVAL-AD5110SDZ
AD5110 Evaluation Board

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