XTR117 4-20mA Current-Loop Transmitter

1 Features

Low quiescent current: 130 µA
5‑V regulator for external circuits
Low span error: 0.05%
Low nonlinearity error: 0.003%
Wide-loop supply range: 7.5 V to 36 V
Temperature range: –40°C to +125°C
Packages: VSON-8 and VSSOP-8

2 Applications

Two-wire, 4-20mA current-loop transmitter
Smart transmitter
Industrial process control
Test systems
Current amplifier
Voltage-to-current amplifier

3 Description

The XTR117 is a precision current output converter designed to transmit analog 4-mA-to-20-mA signals over an industry-standard current loop. The device provides accurate current scaling and output current limit functions.

The on-chip voltage regulator (5 V) can be used to power external circuitry. A current return pin (I_RET) senses any current used in external circuitry to provide an accurate control of the output current.

The XTR117 is a fundamental building block of smart sensors using 4-mA-to-20-mA current transmission.

The XTR117 is specified for operation over the extended industrial temperature range, –40°C to +125°C.

Package Information

PRODUCT	PACKAGE⁽¹⁾	PACKAGE SIZE⁽²⁾
XTR117	DGK (VSSOP, 8)	3 mm × 4.9 mm
XTR117	DRB (VSON, 8)	3 mm × 3 mm

(1) For more information, see Section 10.

(2) The package size (length × width) is a nominal value and includes pins, where applicable.

Related 4-20mA Devices⁽¹⁾

DEVICE	DESCRIPTION
XTR115	5-V regulator output and 2.5-V reference output
XTR116	5-V regulator output and 4.096-V reference output

(1) For complete 4-20mA bridge and RTO conditioner solutions, see the XTR product family at www.ti.com.

Typical Application