The XTR105 is a monolithic 4-20mA, 2-wire current transmitter with two precision current
sources. It provides complete current excitation for platinum RTD temperature sensors and bridges,
instrumentation amplifiers, and current output circuitry on a single integrated circuit.
Versatile linearization circuitry provides a 2nd-order correction to the RTD, typically
achieving a 40:1 improvement in linearity.
Instrumentation amplifier gain can be configured for a wide range of temperature or
pressure measurements. Total unadjusted error of the complete current transmitter is low enough to
permit use without adjustment in many applications. This includes zero output current drift, span
drift, and nonlinearity. The XTR105 operates on loop power-supply voltages.
The XTR105 is a monolithic 4-20mA, 2-wire current transmitter with two precision current
sources. It provides complete current excitation for platinum RTD temperature sensors and bridges,
instrumentation amplifiers, and current output circuitry on a single integrated circuit.
Versatile linearization circuitry provides a 2nd-order correction to the RTD, typically
achieving a 40:1 improvement in linearity.
Instrumentation amplifier gain can be configured for a wide range of temperature or
pressure measurements. Total unadjusted error of the complete current transmitter is low enough to
permit use without adjustment in many applications. This includes zero output current drift, span
drift, and nonlinearity. The XTR105 operates on loop power-supply voltages.