FEATURES

APPLICATIONS

TRANSMITTER

DESCRIPTION

The XTR117 is a precision current output converter designed

to transmit analog 4-20mA signals over an industry-standard

current loop. It provides accurate current scaling and output

current limit functions.

The on-chip voltage regulator (5V) can be used to power

current used in external circuitry to assure an accurate

control of the output current.

The XTR117 is a fundamental building block of smart

sensors using 4-20mA current transmission. The XTR117 is

specified for operation over the extended industrial

temperature range, −40°C to +125°C.

RELATED 4-20mA PRODUCTS

XTR115

5V regulator output and 2.5V reference output

XTR116

5V regulator output and 4.096V reference output

see the XTR product family website at www.ti.com.

A1

2.475k

Ω

25

Ω

Q1

E

B

V+

7

6

5

4

8

2

3

XTR117

+5V

Regulator

XTR117

4-20mA Current-Loop Transmitter

SBOS344C − SEPTEMBER 2005 − REVISED MAY 2012

PRODUCTION DATA information is current as of publication date. Products

conform to specifications per the terms of Texas Instruments standard warranty.

Production processing does not necessarily include testing of all parameters.

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Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments

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