OPA657

The OPA657 is designed as one kind of high gain bandwidth,low distor-tion,voltage-feedback op amp with a low voltage noise JFET-input stage to offer a very high dynamic range amplifier for high precision ADC (Analog-to-Digital Converter) driving or wideband transimpedance applications.Photo-diode applications will see improved noise and bandwidth using this decompensated,high gain bandwidth amplifier.It can be used in (1)wideband photodiode amplifier;(2)wafer scanning equipment;(3)ADC input amplifier;(4)test and measurement front end;(5)high gain precision amplifier.

Features of the OPA657 are:(1)high gain bandwidth product:1.6 GHz;(2)high bandwidth 275MHz(G=+10);(3)low input offset voltage:+/-0.25 mV;(4)low input bias current:2 pA;(5)low input voltage noise:4.8 nV;(6)high output current:70 mA;(7)fast overdrive recovery.

The absolute maximum ratings of the OPA657 can be summarized as:(1)supply voltage:±6.5V;(2)internal power dissipation:see thermal characteristics;(3)differential input voltage:±VS;(4)input voltage range:±VS;(5)storage temperature range:-40°C to +125°C;(6)lead temperature:+260°C;(7)junction temperature:+175°C;(8)ESD rating (human body model):2000 V;(9)ESD rating(machine model):200 V.If you want to know more information such as the electrical characteristics about the OPA657,please download the datasheet in www.seekdatasheet.com .