OP270GS

DUAL非常低的噪声精密运算放大器 Dual Very Low Noise Precision Operational Amplifier

Product Details

The OP270 is a high performance, monolithic, dual operational amplifier with exceptionally low voltage noise density 5 nV/√Hz maximum at 1 kHz. It offers comparable performance to the industry-standard OP27 from Analog Devices, Inc.

The OP270 features an input offset voltage of less than 75 μV and an offset drift of less than 1 μV/°C, guaranteed over the full military temperature range. Open-loop gain of the OP270 is more than 1,500,000 into a 10 kΩ load, ensuring excellent gain accuracy and linearity, even in high gain applications. The input bias current is less than 20 nA, which reduces errors due to signal source resistance. With a common-mode rejection CMR of greater than 106 dB and a power supply rejection ratio PSRR of less than 3.2 μV/V, the OP270 significantly reduces errors due to ground noise and power supply fluctuations. The power consumption of the dual OP270 is one-third less than two OP27 devices, a significant advantage for power conscious applications. The OP270 is unity-gain stable with a gain bandwidth product of 5 MHz and a slew rate of 2.4 V/μs.

The OP270 offers excellent amplifier matching, which is important for applications such as multiple gain blocks, low noise instrumentation amplifiers, dual buffers, and low noise active filters.

The OP270 conforms to the industry-standard 8-lead CERDIP and PDIP pinouts.

For higher speed applications, the ADA4004-2 or the AD8676 are recommended. For a quad op amp, see the OP470 data sheet.

### Features and Benefits

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Very low noise density of

5 nV/√Hz at 1 kHz maximum 

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Excellent input offset voltage of 75 μV maximum

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Low offset voltage drift of

1 μV/°C maximum 

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Very high gain of 1500 V/mV minimum

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Outstanding CMR of 106 dB minimum 

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Slew rate of 2.4 V/μs typical 

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Gain bandwidth product of

5 MHz typical

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Industry-standard 8-lead dual pinout