OPA567

OPA567 OPA567 SBOS287A – JUNE 2005 – REVISED SEPTEMBER 2005 Rail-to-Rail I/O, 2A POWER AMPLIFIER FEATURES q HIGH OUTPUT CURRENT: 2A q OUTPUT SWINGS TO: 150mV of Rails with I = 2A O q THERMAL PROTECTION q ADJUSTABLE CURRENT LIMIT q TWO FLAGS: Current Limit and Temperature Warning q LOW SUPPLY VOLTAGE OPERATION: 2.7V to 5.5V q SHUTDOWN FUNCTION WITH OUTPUT DISABLE q SMALL POWER PACKAGE APPLICATIONS q THERMOELECTRIC COOLER DRIVER q LASER DIODE PUMP DRIVER q VALVE, ACTUATOR DRIVER q SYNCHRO, SERVO DRIVER q TRANSDUCER EXCITATION q GENERAL LINEAR POWER BOOSTER FOR OP AMPS V+ TFLAG Enable 1, 12 8 –IN 10 (1) 11 IFLAG 7 OPA567 2, 3 VO 9 +IN 4, 5 6 RSET NOTE: (1) Connect for thermal protection. V– ISET DESCRIPTION The OPA567 is a low-cost, high-current, operational amplifier designed for driving a wide variety of loads while operating on low-voltage supplies. It operates from either single or dual supplies for design flexibility and has rail-to-rail swing on the input and output. Output swing is within 300mV of the supply rails, with output current of 2A. Smaller loads allow an output swing closer to the rails. The OPA567 is unity gain stable, easy to use, and free from the phase inversion problems found in some power amplifiers. High performance is maintained at voltage swings near the output rails. The OPA567 provides an accurate user-selected current limit set with an external resistor, or digitally adjusted via a Digital-to-Analog Converter (DAC). The output of the O...