XTR115UA 4-20-mA current loop transmitter with 2.5-V reference and 200-μA power SMD SOP8

Description:

The XTR115 and XTR116 are precision current output converters designed to transmit analog 4-to-20mA signals over an industry standard current loop. They provide accurate current scaling and output current limit functions.

The on-chip voltage regulator (5V) can be used to power external circuitry. A precision on-chip VREF (2.5V for XTR115 and 4.096V for XTR116) can be used for offsetting or to excite transducers. A current return pin (IRET) senses any current used in external circuitry to assure an accurate control of the output current.

The XTR115 is a fundamental building block of smart sensors using 4-to-20mA current transmission.

Features:

LOW QUIESCENT CURRENT: 200µA
5V REGULATOR FOR EXTERNAL CIRCUITS
V REF FOR SENSOR EXCITATION:
XTR115: 2.5V
XTR116: 4.096V
LOW SPAN ERROR: 0.05%
LOW NONLINEARITY ERROR: 0.003%
WIDE LOOP SUPPLY RANGE: 7.5V to 36V
SO-8 PACKAGE
APPLICATIONS
- 2-WIRE, 4-20mA CURRENT LOOP TRANSMITTER
- SMART TRANSMITTER
- INDUSTRIAL PROCESS CONTROL
- TEST SYSTEMS
- COMPATIBLE WITH HART MODEM
- CURRENT AMPLIFIER
- VOLTAGE-TO-CURRENT AMPLIFIER
- DataSheet