XTR101 Datasheet | Burr-Brown

FEATURES D INSTRUMENTATION AMPLIFIER INPUT: - Low Offset Voltage, 30µV max - Low Voltage Drift, 0.75µV/°C max - Low Nonlinearity, 0.01% max D TRUE TWO-WIRE OPERATION: - Power and Signal on One Wire Pair - Current Mode Signal Transmission - High Noise Immunity D DUAL MATCHED CURRENT SOURCES D WIDE SUPPLY RANGE: 11.6V to 40V D SPECIFICATION RANGE: - 40°C to +85°C D SMALL DIP-14 PACKAGE, CERAMIC AND PLASTIC APPLICATIONS D INDUSTRIAL PROCESS CONTROL: - Pressure Transmitters - Temperature Transmitters - Millivolt Transmitters D RESISTANCE BRIDGE INPUTS D THERMOCOUPLE INPUTS D RTD INPUTS D CURRENT SHUNT (m V) INPUTS D PRECISION DUAL CURRENT SOURCES D AUTOMATED MANUFACTURING D POWER/PLANT ENERGY SYSTEM MONITORING DESCRIPTION The XTR101 is a microcircuit, 4-20m A, two-wire transmitter containing a high accuracy instrumentation amplifier (IA), a voltage-controlled output current source, and dual-matched precision current reference. This bination is ideally suited for remote signal conditioning of a wide variety of transducers such as thermocouples, RTDs, thermistors, and strain gauge bridges. State-of-theart design and laser-trimming, wide temperature range operation, and small size make it very suitable for industrial process control applications. In addition, the optional external transistor allows even higher precision. The two-wire transmitter allows signal and power to be supplied on a single wire pair by modulating the power-supply current with the input signal source. The transmitter is immune to voltage drops from long runs and noise from motors, relays, actuators, switches, transformers, and industrial equipment. It can be used by OEMs producing transmitter modules or by data acquisition system manufacturers. IREF1 IREF2 Optional External e1 3- +VCC Transistor 11 Span 6 12(1) B e2 4+ 13(1) E 2 14 7 1 IOUT Optional Offset Null NOTE: (1) Pins 12 and 13 are used for optional BW control. Please be aware that an important notice...