Multi-Cal-Master PCA

USB Cable

Universal Power Supply

USB DAQ Platform

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Overview

1

Overview

The Multi-Cal-System Evaluation Module is a set of EVMs that is used to calibrate multiple PGA308 and

PGA309 sensor modules. The PGA308 and PGA309 are two programmable analog sensor signal

conditioners. All components in the Multi-Cal-System can be expanded to calibrate up to 64 sensors

simultaneously. For a more detailed description of the PGA308, please refer to the product data sheet

(SBOS440) available from the Texas Instruments web site at http://www.ti.com. Additional support

documents are listed in the section of this guide entitled Related Documentation from Texas Instruments .

The Multi-Cal-System Evaluation Module consists of two printed circuit boards (PCBs). One board (the

USB DAQ Platform) generates the signals required to communicate with the Multi-Cal-System, which is

the second board (Multi-Cal-Master PCA), as well as support and configuration circuitry. The complete

Multi-Cal-System contains a series of PCBs, and can be expanded to meet your specific system

requirements.

Throughout this document, the abbreviation EVM and the term evaluation module are synonymous with

the Multi-Cal-System Evaluation Module.

1.1

Multi-Cal-System Hardware Options

Figure 1 shows the hardware included with the basic Multi-Cal-System kit. Contact the factory if any

component is missing.

Figure 1. Hardware Included with the Multi-Cal-System EVM Kit

The Multi-Cal-System EVM kit includes the following items:

•

Multi-Cal-System PCB: This board multiplexes all the communication signals, sensor module output

signals, and power.

•

USB DAQ Platform PCB: This board connects to the USB port on your computer. It generates all the

control signals and communication signals for the Multi-Cal-System.

•

USB cable: Connects your computer to the USB DAQ Platform PCB; it is an A-Male to B-Male USB

cable.

•

Universal 9V power supply: 9-V

for most major countries.)

3

SBOU087A

– August 2010 – Revised April 2011

Multi-Cal-System Evaluation Module

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