精密放大器 Low Power High Prec IC
Product Details
The OP-97 is a low-power alternative to the industry-standard OP-07 precision amplifier. The OP-97 maintains the standards of performance set by the OP-07 while utilizing only 600µA supply current, less than 1/6 that of an OP-07. Offset voltage is an ultra-low 25µV, and drift over temperature is below 0.6µV/°C. External offset trimming is not required in the majority of circuits.
Improvements have been made over OP-07 specifications in several areas. Notable is bias current, which remains below 250pA over the full military temperature range. The OP-97 is ideal for use in precision long-term integrators or sample-and-hold circuits that must operate at elevated temperatures.
Common-mode rejection and power-supply rejection are also improved with the OP-97, at 114dB minimum over wider ranges of common-mode or supply voltage. Outstanding PSR, a supply range specified from ±2.25V to ±20V and the OP-97"s minimal power requirements combine to make the OP-97 a preferred device for portable and battery-powered instruments.
The OP-97 conforms to the OP-07 pinout, with the null potentimeter connected between pins 1 and 8 with the wiper to V+. The OP-97 will upgrade circuit designs using 725, OP05, OP07, OP12, and 1012 type amplifiers. It may replace 741-type amplifiers in circuits without nullling or where the nulling circuitry has been removed.
### Features and Benefits
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- OP07 Type Performance
Offset Voltage: 20 µV Max
Offset Voltage Drift: 0.6 µV/°C Max
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- Very Low Bias Current
25°C: 100 pA Max
–55°C to +125°C: 250 pA Max
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- Low Supply Current: 600 µA Max
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- High Common-Mode Rejection: 114 dB Min
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- Extended Industrial Temperature
Range: –40°C to +85°C
