Analog Devices: EVAL-AD7291SDZ Evaluation Board for the AD7291 12-Bit SAR ADC with Temperature Sensor

atomar — Tue, 23 Apr 2013 03:46:58 GMT

Current Revision posted to Documents by atomar on 4/23/2013 3:46:58 AM

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Development Tools

Kit Overview

The EVAL-AD7291SDZEVAL-AD7291SDZ is a fully featured evaluation board for the AD7291AD7291. This board operates in stand alone mode or in conjunction with the SDP-B System Development Platform (EVAL-SDP-CB1ZEVAL-SDP-CB1Z) should be purchased separately. When operated with the System Development Platform software is provided enabling the user to perform detailed analysis of the ADC's performance. When operated in standalone mode the ADZS-BRKOUT-EX3ADZS-BRKOUT-EX3 break out board is recommended for access to various control pins.

The AD7291AD7291 is a 12-bit, low power, 8-channel, successive approximation analog-to-digital converter (ADC) with an internal temperature sensor. The part operates from a single 3.3 V power supply and features an I²C-compatible interface. The part contains a 9-channel multiplexer and a track-and-hold amplifier than can handle frequencies up to 30 MHz. The device has an on-chip 2.5 V reference that can be disabled to allow the use of an external reference.

The AD7291AD7291 includes a high accuracy band gap temperature sensor, which is monitored and digitized by the 12-bit ADC to give a resolution of 0.25°C. The AD7291 offers a programmable sequencer, which enables the selection of a preprogrammable sequence of channels for conversion.

Key Applications: Data Conversion

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Development Tools

SDP-B System Development Platform (EVAL-SDP-CB1ZEVAL-SDP-CB1Z) Features

Blackfin Processor ADSP-BF527
USB 2.0 Interface to PC
JTAG header footprint
32MB SDRAM
2 x Small Footprint 120 Pin Connectors
Configurable Peripheral Interfaces - SPI - SPORT - I2C - GPIOs - Parallel - Timers

Technical Documents

Learning Center

Type	Description
User Guide	ADI: User Guide (UG-253) for AD7291 Evaluation Board - 8-Channel, I2C, 12-Bit SAR ADC with Temperature Sensor
Datasheet	ADI: Datasheet for AD7291 8-Channel, I2C, 12-Bit SAR ADC with Temperature Sensor (Rev B)

Design Elements

Type	Description
Application Library	ADI: Application Library for BeMicro FPGA Project for AD7291 with Nios driver
Application Library	ADI: Software Code for AD7291 - Microcontroller No-OS Driver
Reference Design	ADI: Reference Design for AD7291 FMC-SDP Interposer and Evaluation Board / Xilinx KC705
CAD Model	ADI: CAD Model for AD7291BCPZ (BXL)

Video

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Kit Features

Features of EVAL-AD7291SDZEVAL-AD7291SDZ Evaluation Board:

The EVAL-AD7291SDZEVAL-AD7291SDZ is a fully featured evaluation board for the AD7291AD7291 SAR ADC
- 12-bit SAR ADC
  - 8 single-ended analog input channels
  - Analog input range: 0 V to 2.5 V
- 12-bit temperature-to-digital converter
  - Temperature sensor accuracy of ±1°C typical
- Channel sequencer operation
- Specified for VDD of 2.8 V to 3.6 V
- Logic voltage VDRIVE = 1.65 V to 3.6 V
- Internal 2.5 V reference
- I2C-compatible serial interface supports standard and fast speed modes
- Out of range indicator/alert function
- Autocycle mode
- Power-down current: 12 μA maximum
Board operates in stand alone mode or in conjunction with the System Development Platform EVAL-SDP-CB1ZEVAL-SDP-CB1Z
When operated in standalone mode the ADZS-BRKOUT-EX3ADZS-BRKOUT-EX3 break out board is recommended for access to various control pins

Kit Contents

The Analog Devices EVAL-AD7291SDZEVAL-AD7291SDZ supplied with below contents:

EVAL-AD7291SDZEVAL-AD7291SDZ Evaluation Board

Tags: eval-ad7291sdz, eval-sdp-cb1z, adzs-brkout-ex3, ad7291, evaluation_board, analog_devices