The OPA656 combines a wideband,
unity-gain stable, voltage-feedback operational amplifier with a low-noise junction
gate field-effect transistor (JFET) input stage to offer an ultra high dynamic-range
amplifier for transimpedance applications and high-speed data acquisition
front-ends. Extremely low dc errors give good precision in both optical applications
and test and measurement.The
OPA656 features ultra-low input voltage noise (6nV/√Hz) to achieve a very low
integrated noise in transimpedance applications. The combination of high input
impedance and low input voltage noise makes the OPA656 an excellent wideband
transimpedance amplifier in optical test and communication equipment, as well as
medical and scientific instrumentation. The OPA656 features a wide gain
bandwidth of 230MHz. The large-signal bandwidth of 150MHz and low distortion make
the OPA656 an excellent choice in high-speed digitizer front-ends, active probes,
and other test and measurement front ends.
