XTR116 Datasheet | Texas Instruments

Features - Low quiescent current: 200 μA - 5-V regulator for external circuits - VREF for sensor excitation: - XTR115: 2.5 V - XTR116: 4.096 V - Low span error: 0.05% - Low nonlinearity error: 0.003% - Wide loop supply range: 7.5 V to 36 V - SO-8 package 2 Applications - 2-wire, 4-20-m A current loop - Transmitter - Smart transmitter - Industrial process control - Test systems - patible with HART modem - Current amplifier - Voltage-to-current amplifier 3 Description The XTR115 and XTR116 (XTR11x) are precision current output converters designed to transmit analog 4-m A-to-20-m A signals over an industry standard current loop. These devices provide accurate current scaling and output current limit functions. The on-chip voltage regulator (5 V) can be used to power external circuitry. A precision on-chip VREF (2.5 V for the XTR115 and 4.096 V for the XTR116) can be used for offsetting or to excite transducers. A current return pin (IRET) senses any current used in external circuitry to provide an accurate control of the output current. The XTR11x are a fundamental building block of smart sensors using 4-m A-to-20-m A current transmission. The XTR11x are specified for operation over the extended industrial temperature range, - 40°C to +85°C. PART NUMBER XTR115 XTR116 Device Information ON-CHIP VREF PACKAGE(1) 2.5 V 4.096 V D (SOIC, 8) (1) For all available packages, see the orderable addendum at the end of the data sheet. XTR115 VREG 5V 5-V V+ Regulator XTR115: 2.5 V XTR116: 4.096...