The OPA627 Difet® operational amplifier provides a new level of performance in a precision FET operational amplifier. When compared to the popular OPA111 operational amplifier, the OPA627 has lower noise, lower offset voltage, and higher speed. The OPA627 is useful in a broad range of precision and high speed analog circuitry.
The OPA627 is fabricated on a high-speed, dielectrically-isolated complementary NPN/PNP process. It operates over a wide range of power supply voltage of ±4.5 V to ±18 V. Laser-trimmed Difet input circuitry provides high accuracy and low-noise performance comparable with the best bipolar-input operational amplifiers.
High frequency complementary transistors allow increased circuit bandwidth, attaining dynamic performance not possible with previous precision FET operational amplifiers. The OPA627 is unity-gain stable.
Difet fabrication achieves extremely low input bias currents without compromising input voltage noise performance. Low input bias current is maintained over a wide input common-mode voltage range with unique cascode circuitry.
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