Texas Instruments XTR115
The XTR115 and XTR116 (XTR11x) are precision current output converters designed to transmit analog 4-mA-to-20-mA 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.| Part No. | XTR115 |
|---|---|
| Datasheet | XTR115 Download |
| Manufacturer |  Texas Instruments |
| Description | Current-Loop Transmitters |
| Buy | Stock & Price |
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-mA current loop● Transmitter
● Smart transmitter
● Industrial process control
● Test systems
● Compatible with HART modem
● Current amplifier
● Voltage-to-current amplifier 3
DESCRIPTION
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-mA-to-20-mA 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.
