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

The OPA817 is a unity-gain stable,

voltage-feedback operational amplifier for high-speed,

high-precision and wide dynamic range applications.

The OPA817 has a low-noise junction

gate field-effect transistor (JFET) input stage that

features a wide gain-bandwidth of 400MHz and a supply range

from 6V to 12.6V. The fast slew rate of 1000V/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 OPA817 offers extremely low input

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

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

current and low input voltage noise (4.5nV/√Hz) makes the

OPA817 an excellent

choice as a wideband transimpedance amplifier in optical

test and communication equipment, as well as medical and

scientific instrumentation.

The OPA817 is available in an 8-lead

WSON package with an exposed thermal pad for heat

dissipation. This device is specified to operate over the

industrial temperature range of –40°C to +105°C.