OP249AZ

The OP249AZ is a precision high-speed dual JFET operational amplifier manufactured by Analog Devices, supplied in an 8-pin CERDIP package. It pairs JFET input stages with bipolar outputs to achieve picoampere input bias currents, high slew rates exceeding 20 V/µs, and wide gain-bandwidth product, while maintaining low offset voltage and drift. This combination suits high-impedance sensor amplification and fast analog signal processing where both precision and speed are required.

Typical applications include instrumentation amplifiers, photodiode transimpedance circuits, high-speed integrators, and buffered data acquisition front ends in industrial control, aerospace guidance, medical imaging, and defense electronics. The ceramic dual in-line package provides a hermetically sealed, moisture-resistant enclosure that withstands extreme thermal cycles and mechanical stress, making it appropriate for high-reliability environments. When specifying this part, note that the OP249AZ is a commercial/industrial grade ceramic device; for full military screening, availability of /883B or equivalent qualified versions should be verified.