Analog Devices: EVAL-AD5110SDZ Evaluation Board for AD5110 Nonvolatile Digital Potentiometer

atomar — Wed, 03 Apr 2013 06:21:08 GMT

Current Revision posted to Documents by atomar on 4/3/2013 6:21:08 AM

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Kit Overview

The Analog Devices EVAL-AD5110SDZEVAL-AD5110SDZ evaluation board for evaluating the AD5110AD5110 a single-channel, 128-position, nonvolatile memory digital potentiometer. The AD5110 supports single-supply 2.3 V to 5.5 V operation, making the device suited for battery-powered applications and many other applications, offering guaranteed low resistor tolerance errors of ±8% and high bandwidth while allowing up to ±6 mA current density in the A, B, and W pins.

The logic voltage levels operate from single 1.8 V to 5.5 V supplies. The versatile I2C-compatible digital interface allows readback of the wiper register and EEPROM content which contain the resistor tolerance, providing an end-to-end tolerance accuracy of 0.1%. The EVAL-AD5110SDZEVAL-AD5110SDZ can operate in single-supply mode and incorporates an internal power supply from the USB.

The AD5110AD5110 provides a nonvolatile solution for 128-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 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%.

This evaluation board requires an SDP Controller board (EVAL-SDP-CS1ZEVAL-SDP-CS1Z) 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.

Key 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

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Technical Documents

Learning Center

Type	Description
User Guide	ADI: User Guide (UG-322) for AD5110 Evaluation Board
User Guide	ADI: Quick Start Guide (UG-378) to AD5110 Evaluation Board
Datasheet	ADI: Datasheet for AD5110/AD5112/AD5114: Single-Channel, 128-/64-/32-Position, I2C, 8% Resistor Tolerance, Nonvolatile Digital Potentiometer (Rev B)
Design Techniques	ADI: Design Techniques for Choosing the Correct digiPOT for Your Application

Design Elements

Type	Description
CAD Model	ADI: CAD Model for AD5110BCPZ10-1-RL7
Simulation Model	ADI: IBIS Model for AD5110
Reference Design	ADI: Reference Design for AD5110 FMC-SDP Interposer and Evaluation Board / Xilinx KC705
Application Library	ADI: Software Code for AD5110 - Microcontroller No-OS Driver
Application Library	ADI: Application Library for BeMicro FPGA Project for AD5110 with Nios driver

Video

Kit Features

Key Features for EVAL-AD5110SDZEVAL-AD5110SDZ are as below:

Full-featured evaluation board for the AD5110
Several test circuits
Various ac/dc input signals
PC control via a separately purchased system demonstration platform (SDP)
PC control software
Resistor tolerance error stored in EEMEM

Key features for AD5110AD5110:

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
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

Kit Contents

The Analog Devices EVAL-AD5110SDZEVAL-AD5110SDZ kit is supplied with below contents:

EVAL-AD511xSDZ evaluation board
CD that includes
- Self-installing software that allows users to control the board and exercise all functions of the device
- Electronic version of the AD5110 data sheet
- Electronic version of the UG-322 user guide

Tags: ad5110, eval-ad5110sdz, analog_devices