Analog Devices: EVAL-AD5111SDZ Evaluation Board for the AD5111 Digital Potentiometer

atomar — Tue, 23 Apr 2013 03:41:02 GMT

Current Revision posted to Documents by atomar on 4/23/2013 3:41:02 AM

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Kit Overview

The Analog Devices EVAL-AD5111SDZEVAL-AD5111SDZ evaluation board for evaluating the AD5111AD5111 a single-channel, 128-position, nonvolatile memory digital potentiometer. The AD5111 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.

A simple 3-wire up/down interface allows manual switching or high speed digital control with clock rates up to 50 MHz. The EVAL-AD5111SDZEVAL-AD5111SDZ can operate in single-supply mode and incorporates an internal power supply from the USB.

The AD5111AD5111 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 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. A simple 3-wire up/down interface allows manual switching or high speed digital control with clock rates up to 50 MHz.

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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SDP Controller board (EVAL-SDP-CS1ZEVAL-SDP-CS1Z) Features:

USB to Serial Engine
1 xsmall footprint 120 Pin Connector
Configurable interface ( SPI, I2C, GPIO)
USB 2.0 interface to the PC

Technical Documents

Learning Center

Type	Description
User Guide	ADI: Quick Start Guide (UG-379) to AD5111 Evaluation Board
User Guide	ADI: User Guide (UG-323) for AD5111 Evaluation Board
Datasheet	ADI: Datasheet for AD5111/AD5113/AD5115: Single-Channel, 128-/64-/32-Position, Up/Down, 8% Resistor Tolerance, Nonvolatile Digital Potentiometer (Rev B)
Design Techniques	ADI: Design Techniques for Choosing the Correct digiPOT for Your Application
Application Note	ADI: Application Note ( AN-1150) for Controlling the AD5111/AD5113/AD5115 Using a Traditional Dial Interface

Design Elements

Type	Description
CAD Model	ADI: CAD Model for AD5111BCPZ10-RL7
Simulation Model	ADI: IBIS Model for AD5111
Reference Design	ADI: Reference Design for AD5111 FMC-SDP Interposer and Evaluation Board / Xilinx KC705
Application Library	ADI: Application Library for BeMicro FPGA Project for AD5111 with Nios driver

Video

Kit Features

Key Features for EVAL-AD5111SDZEVAL-AD5111SDZ are as below:

Full-featured evaluation board for the AD5111
Several test circuits
Various ac/dc input signals
PC control via a separately purchased system demonstration platform (SDP)
PC control software

Features for AD5111AD5111 are as below:

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 supply operation
Chip select enable multiple device operation

Kit Contents

The Analog Devices EVAL-AD5111SDZEVAL-AD5111SDZ 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 AD5111 data sheet
Electronic version of the UG-323 user guide

Tags: ad5111, analog_devices, eval-ad5111sdz