Texas Instruments ADS8910B, Руководство пользователя

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Overview
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4 SBAU268 – July 2016
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Copyright © 2016, Texas Instruments Incorporated
ADS8910BEVM-PDK
1 Overview
The ADS8910BEVM-PDK is a platform for evaluating the performance of the ADS8910B SAR ADC, which
is a fully-differential input, 18-bit, 1-MSPS device. The evaluation kit includes the ADS8910BEVM board
and the precision host interface (PHI) controller board that enables the accompanying computer software
to communicate with the ADC over USB for data capture and analysis.
The ADS8910BEVM board includes the ADS8910B SAR ADC, all the peripheral analog circuits, and
components required to extract optimum performance from the ADC.
The PHI board primarily serves three functions:
• Provides a communication interface from the EVM to the computer through a USB port
• Provides the digital input and output signals necessary to communicate with the ADS8910BEVM
• Supplies power to all active circuitry on the ADS8910B board
Along with the ADS8910BEVM and PHI controller board, this evaluation kit includes an A-to-micro-B USB
cable to connect to a computer.
1.1 ADS8910BEVM-PDK Features
The ADS8910BEVM-PDK includes the following features:
• Hardware and software required for diagnostic testing as well as accurate performance evaluation of
the ADS8910B ADC
• USB powered—no external power supply is required
• The PHI controller that provides a convenient communication interface to the ADS8910B ADC over a
USB 2.0 (or higher) for power delivery as well as digital input and output
• Easy-to-use evaluation software for Microsoft
®
Windows
®
7, Windows
®
8, 64-bit operating systems
• The software suite includes graphical tools for data capture, histogram analysis, spectral analysis,
linearity analysis and reference settling analysis. This suite also has a provision for exporting data to a
text file for post-processing.
1.2 ADS8910BEVM Features
The ADS8910BEVM includes the following features:
• Onboard low-noise and low distortion ADC input drivers optimized to meet ADC performance
• Onboard precision 5.0-V voltage reference with a low-pass filter.
• Jumper-selectable 0-V and 2.5-V input common-mode options allow unipolar and bipolar inputs.
• Onboard ultralow noise low-dropout (LDO) regulator for excellent 5.2-V single-supply regulation of all
operation amplifiers and voltage reference.