XTR116 Datasheet | Burr-Brown

FEATURES q LOW QUIESCENT CURRENT: 200µA q 5V REGULATOR FOR EXTERNAL CIRCUITS q VREF FOR SENSOR EXCITATION: XTR115: 2.5V XTR116: 4.096V q LOW SPAN ERROR: 0.05% q LOW NONLINEARITY ERROR: 0.003% q WIDE LOOP SUPPLY RANGE: 7.5V to 36V q SO-8 PACKAGE DESCRIPTION The XTR115 and XTR116 are precision current output converters designed to transmit analog 4-to-20m A 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 APPLICATIONS q 2-WIRE, 4-20m A CURRENT LOOP TRANSMITTER q SMART TRANSMITTER q INDUSTRIAL PROCESS CONTROL q TEST SYSTEMS q PATIBLE WITH HART MODEM q CURRENT AMPLIFIER q VOLTAGE-TO-CURRENT AMPLIFIER 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-20m A current transmission. The XTR115 and XTR116 are specified for operation over the extended industrial temperature range, - 40°C to +85°C. XTR115 +5V VREG 8 +5V V+ Regulator XTR115: 2.5V XTR116: 4.096V VREF 1 Voltage Reference + A1 VLOOP RL - 3 IRET R1 2.475kΩ RLIM R2 25Ω E 5 IO = 100 VIN RIN 4 I = 100 - IIN Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. All trademarks are the property of their respective owners. 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. .ti. Copyright © 2000-2003, Texas...