XTR116UA/2K5

TEXAS INSTRUMENTS

4-20-mA current loop transmitter with 4.096-V reference and 200-μA power


Download Specifications

Features for the XTR116

  • Low quiescent current: 200 µA
  • 5-V regulator for external circuits
  • V REF 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

Description for the XTR116

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. A precision on-chip V REF (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 (I RET) 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.