XTR101AP

Sensor And Detector Interfaces Overview

The XTR101AP is a precision, low-drift 4-20mA two-wire transmitter manufactured by Texas Instruments in a plastic DIP-14 package. It integrates a high-accuracy instrumentation amplifier with a voltage-controlled output current source and dual-matched precision current references. The device operates on a supply voltage range of 11.6V to 40V and supports an industrial temperature specification from -40°C to +85°C. Key electrical characteristics include a maximum input offset voltage of 60µV, a maximum voltage drift of 1.5µV/°C, and a maximum nonlinearity of 0.01%. The input bias current is specified at a maximum of 150nA.

Sensor And Detector Interfaces Feature Summary

• True two-wire operation allows simultaneous power delivery and signal transmission over a single wire pair using current mode modulation.
• Features a high-accuracy instrumentation amplifier input with laser-trimmed low offset voltage and minimal voltage drift for precise signal conditioning.
• Includes dual matched precision current sources suitable for transducer excitation and biasing applications.
• Provides optional external transistor support to minimize thermal feedback and improve accuracy in demanding environments.

Sensor And Detector Interfaces Applications

• Industrial process control pressure transmitters
• Temperature transmitters utilizing RTDs or thermocouples
• Millivolt transmitters for strain gauge bridges
• Resistance bridge inputs
• Current shunt (mV) inputs

Sensor And Detector Interfaces Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm the package type and temperature grade. The 'AP' designation corresponds to the plastic DIP-14 variant within the XTR101 series. Ensure that the procurement channel provides valid traceability and authenticity guarantees for this legacy component.

Sensor And Detector Interfaces Selection Notes

Select the XTR101AP when a through-hole plastic package is required for industrial process control applications. This variant is optimized for environments requiring a wide supply voltage range and high noise immunity. Consider the external transistor option if higher precision is needed to mitigate self-heating effects in the integrated circuit package.

Sensor And Detector Interfaces Part Context

The XTR101 belongs to the XTR101 family of microcircuit two-wire transmitters produced by Texas Instruments. Originally developed by Burr Brown before its acquisition, this component remains a standard solution for remote signal conditioning. The AP suffix specifically identifies the plastic DIP-14 packaging option available within this product line.

Sensor And Detector Interfaces Replacement Considerations

The XTR101AU serves as the surface-mount equivalent in an SOIC-16 package. Verify pin compatibility and thermal performance requirements when substituting between package types. No other direct functional replacements are documented in the provided datasheet.