10

10

Input Signal

124

1 nF

ADS1287

VIN

REF

CIN

1µF

COUT

10 µF

-

+

REF34xx

Copyright © 2017, Texas Instruments Incorporated

17

REF3425-Q1, REF3430-Q1, REF3433-Q1, REF3440-Q1, REF3450-Q1

www.ti.com

SBAS901 – JULY 2018

Product Folder Links: REF3425-Q1 REF3430-Q1 REF3433-Q1 REF3440-Q1 REF3450-Q1

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Copyright © 2018, 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

As the REF34xx-Q1 devices have many applications and setups, there are many situations that this data sheet

can not characterize in detail. Basic applications includes positive/negative voltage reference and data

acquisition systems.

Table 1. Typical Applications and Companion ADC/DAC

APPLICATIONS

ADC/DAC

PLC

DAC8881, ADS8332, ADS8568, ADS8317

Display test equipment

ADS8332

DCS

ADS8588S

Medical blood glucose meters

ADS1120

ADAS

ADS7142, ADS7828-Q1

HEV/EV

ADS7951-Q1, ADS1120-Q1, ADC1258S052-Q1

10.2 Typical Applications

10.2.1 Basic Voltage Reference Connection

The circuit shown in Figure 28 shows the basic configuration for the REF34xx-Q1 references. Connect bypass

capacitors according to the guidelines in Input and Output Capacitors.

Figure 28. Basic Reference Connection