600-MHz, high-precision unity-gain-stable FET-input operational amplifier

The OPA814 is a unity-gain

stable, voltage-feedback operational amplifier for

high-speed, high-precision, and wide-dynamic-range

applications.

The OPA814 has a low-noise

junction gate field-effect transistor (JFET) input stage

that features a wide gain bandwidth of 250 MHz and a supply

range from 6 V to 12.6 V. The fast slew rate of 750 V/µs

allows a wide large-signal bandwidth and low distortion when

used as high impedance buffer in high-speed digitizers,

active probes, and other test and measurement applications.

The OPA814 offers extremely low

input offset voltage of ±250 µV and offset voltage drift of

±3.5-µV/°C. The combination of picoamperes of input bias

current and low input voltage noise (5.3

nV/√ Hz) makes the OPA814 an excellent

wideband transimpedance amplifier in optical test and

communication equipment, as well as medical and scientific

instrumentation.

The OPA814 is available in an

8-pin SOIC package. This device is specified to operate over

the industrial temperature range of –40°C to +85°C.