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New op amp from TI operates from either single or dual supplies

Posted: 18 Oct 2005 ?? ?Print Version ?Bookmark and Share

Keywords:texas instruments? ti? operational amplifier? op amp? opa567?

Texas Instruments Inc. (TI) introduced a high-current, low-cost power operational amplifier (op amp) designed for driving a wide variety of loads while operating on low-voltage supplies. A member of the company's burr-brown product line, the OPA567 amplifier operates from either single or dual supplies for design flexibility and can be used in virtually any op amp configuration.

This unity gain stable device has rail-to-rail swing on the input and output. The output swing is within 300mV of the supply rails with output current of 2A. Lower-current loads allow an output swing closer to the rails resulting in higher performance.

The OPA567 can be integrated with a 12-bit A/D and D/A component such as the AMC7823 or a standalone 12-bit D/A converter such as the DAC7551. An additional feature of the OPA567 is a diagnostic flag for temperature overstress. The temperature flag can also be configured to provide thermal shutdown.

Designed for driving valves, actuators, laser diode pumps and servo motors, the new op amp is available in a Pb-free QFN-12 package (5-by-5mm). According to the company, the small 5-by-5mm QFN package is easy to heat sink and allows compact designs for medical instruments, industrial process control, optical networking and low-voltage battery-powered systems. The thermal pad package helps preserve precision by keeping the chip temperature low. Other applications include thermoelectric coolers, synchro drivers and transducer excitation.

The OPA567 is priced at $1.85 in 1,000-piece quantities (suggested resale pricing) and is available now from TI and its authorized distributors.



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