The XTR105 is a 2-wire 4-20mA monolithic current transmitter with two precision power supplies. On a single integrated circuit, it provides comprehensive current excitation for platinum RTD temperature sensors and crossings, instrumentation amplifiers, and current output circuitry. A 2nd-order correction to the RTD is provided by versatile linearization circuitry, which typically achieves a 40:1 improvement in linearity. The gain of an instrumentation amplifier can be set for a variety of temperature and pressure measurements. The full current transmitter's total uncorrected error is low enough that it can be used in many applications without any adjustments. This comprises nonlinearity, zero output current drift, and span drift. The XTR105 can work with loop power supplies as low as 7.5V. The XTR105 is manufactured in DIP-14 and SO-14 surface - mounted packages and has an industrial range of temperature of ?40?C to 85?C.