XTR115 Texas instruments

XTR115

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XTR115

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Описание

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. The XTR115 and XTR116 are specified for operation over the extended industrial temperature range, -40°C to +85°C.

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

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Vs (min) (V)	7.5
Vs (max) (V)	36
Offset voltage drift (±) (max) (V/°C)	0.000003
Offset voltage (±) (max) (V)	0.00025
Product type	2-wire bridge conditioner
Operating temperature range (°C)	-40 to 85
Rating	Catalog