OP37G High Speed Op-Amp

The OP37 op-amp provides the low offset and drift of the OP07 plus higher speed and lower noise.

The OP37 provides the same high performance as the OP27, but the design is optimized for circuits with gains greater than five. This design change increases slew rate to 17 V/ms and gain-bandwidth product to 63 MHz.

Offsets down to 25 mV and a maximum drift of 0.6 mV/∞C make the OP37 ideal for precision instrumentation applications. Exceptionally low noise (en= 3.5 nV/ @ 10 Hz), a low 1/f noise corner frequency of 2.7 Hz, and the high gain of 1.8 million, allow accurate high-gain amplification of low-level signals. The low input bias current of 10 nA and offset current of 7 nA are achieved by using a bias-current cancellation circuit. Over the military temperature range this typically holds IB and IOS to 20 nA and 15 nA respectively.

Low-cost, high-volume production of the OP37G is achieved by using on-chip zener-zap trimming. This reliable and stable offset trimming scheme has proved its effectiveness over many years of production history. The OP37 brings low-noise instrumentation-type performance to such diverse applications as microphone, tape head, and RIAA phono preamplifiers, high-speed signal conditioning for data acquisition systems, and wide-bandwidth instrumentation.

Features of OP37G

• Low Noise, 80 nV p-p (0.1 Hz to 10 Hz)

• Low Drift, 0.2
  V/C

• High Speed, 17 V/
  s Slew Rate 63 MHz Gain Bandwidth

• Low Input Offset Voltage, 10
  V

• Excellent CMRR, 126 dB (Common-Voltage @ 11 V)

• High Open-Loop Gain, 1.8 Million

• Replaces 725, OP-07, SE5534 In Gains > 5

• Available in Die Form

Related Liinks

• Download OP37G Op-Amp Datasheet