Burr Brown Prod. [from Texas Inst.] XTR101 free download

File name Two_Wire_Transmitter_®_.pdf

XTR101 SBOS146A - OCTOBER 1986 - REVISED AUGUST 2004 Precision, Low Drift 4-20mA TWO-WIRE TRANSMITTER FEATURES D INSTRUMENTATION AMPLIFIER INPUT: - Low Offset Voltage, 30µV max - Low Voltage Drift, 0.75µV/°C max - Low Nonlinearity, 0.01% max DESCRIPTION The XTR101 is a microcircuit, 4-20mA, two-wire transmitter containing a high accuracy instrumentation amplifier (IA), a voltage-controlled output current source, and dual-matched precision current reference. This combination 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 10 e1 3 - 11 +VCC 8 Optional External Transistor D TRUE TWO-WIRE OPERATION: - Power and Signal on One Wire Pair - Current Mode Signal Transmission - High Noise Immunity D D D D DUAL MATCHED CURRENT SOURCES WIDE SUPPLY RANGE: 11.6V to 40V SPECIFICATION RANGE: -40°C to +85°C SMALL DIP-14 PACKAGE, CERAMIC AND PLASTIC APPLICATIONS D INDUSTRIAL PROCESS CONTROL: - Pressure Transmitters - Temperature Transmitters - Millivolt Transmitters D D D D D D D RESISTANCE BRIDGE INPUTS THERMOCOUPLE INPUTS RTD INPUTS CURRENT SHUNT (mV) INPUTS PRECISION DUAL CURRENT SOURCES AUTOMATED MANUFACTURING POWER/PLANT ENERGY SYSTEM MONITORING e2 4 + 14 7 Span 6 XTR101 5 12(1) B 9 13(1) E 2 IOUT 1 Optional Offset Null NOTE: (1) Pins 12 and 13 are used for optional BW control. Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. All trademarks are the property of their respective owners. PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Copyright 1986-2004, Texas Instruments Incorporated www.ti.com XTR101 www.ti.com SBOS146A - OCTOBER 1986 - REVISED AUGUST 2004 ABSOLUTE MAXIMUM RATINGS(1) Power Supply, +VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40V Input Voltage, e1 or e2 . . . . . . . . . . . . . . . . . . . . VOUT, +VCC Storage Temperature Range, Ceramic . . . . . . . . . -55°C to +165°C Plastic . . . . . . . . . . -55°C to +12