10

10

Input Signal

124

1 nF

ADS1287

REF

-

+

REF4132

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EN

GND

13

REF4132

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SNAS794 – MAY 2020

Product Folder Links: REF4132

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Copyright © 2020, Texas Instruments Incorporated

10 Application and Implementation

NOTE

Information in the following applications sections is not part of the TI component

specification, and TI does not warrant its accuracy or completeness. TI’s customers are

responsible for determining suitability of components for their purposes. Customers should

validate and test their design implementation to confirm system functionality.

10.1 Application Information

The REF4132 is a versatile device which can cater to multiple applications and use cases. Basic applications

includes positive/negative voltage reference and data acquisition systems. The table below shows the typical

application of REF4132 and its companion ADC/DAC.

Table 1. Typical Applications and Companion ADC/DAC

Applications

ADC/DAC

PLC - DCS

DAC8881, ADS8332, ADS8568, ADS8317,

ADS8588S, ADS1287

Display Test Equipment

ADS8332, ADS8168

Field Transmitters - Pressure

ADS1120

Video Surveillance - Thermal Cameras

ADS7279

Medical Blood Glucose Meter

ADS1112

10.2 Typical Application: Basic Voltage Reference Connection

The circuit shown in shows the basic configuration for the REF4132 references. Connect bypass capacitors

according to the guidelines in Layout Guidelines.

Figure 18. Basic Reference Connection

10.2.1 Design Requirements

A detailed design procedure is described based on a design example. For this design example, use the

parameters listed in Table 2 as the input parameters.

Table 2. Design Example Parameters

DESIGN PARAMETER

VALUE

5 V

2.5 V

REF4132 input capacitor

1 µF

REF4132 output capacitor

10 µF