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> OPA637 b low noise difet hifi opamp, pro audio qty:2
OPA637 b low noise difet hifi opamp, pro audio qty:2
The Audio Ultimate: low noise, high speed, DIFET precision fast-settling OpAmp
This is the "B" series, with better specifications than the "A" series
Much better slew rate and bandwidth than OPA627. Better settling time than OPA627
VERY LOW NOISE:100% Tested 4.5nV/ Hz at 10kHz
FAST SETTLING TIME: 450ns to 0.01%
Extremely High PSRR: 120dB -typical of very high end OpAmps
The OPA637 Difet operational amplifiers provide a new level of performance in a precision FET op amp. When compared to the popular OPA111 op amp, the OPA627/637 has lower noise, lower offset voltage, and much higher speed. It is useful in a broad range of precision and high speed analog circuitry.
The OPA627/637 is fabricated on a high-speed, dielectrically- isolated complementary NPN/PNP process. It operates over a wide range of power supply voltage 4.5V to 18V. Laser-trimmed Difet input circuitry provides high accuracy and low-noise performance comparable with the best bipolar-input op amps.
High frequency complementary transistors allow increased circuit bandwidth, attaining dynamic performance not possible with previous precision FET op amps. The OPA637 is stable in gains equal to or greater than five.
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.
