Op-amp has low noise plus low drift

29 January 2003 Analogue, Mixed Signal, LSI

The CS3001 amplifier family from Cirrus Logic is claimed to be the first single and dual operational amplifiers that feature simultaneous low noise and low drift, plus exceptionally high open loop gain while operating from low voltages. CS3001 products are suited for signal conditioning of low-frequency applications and are designed to provide very high performance in standard pin-outs. CS3001 products feature simultaneous low noise (6 nV/rt.Hz@0,5 Hz with a 1/f noise corner @0,08 Hz), low drift (0,05 mV/°C max) and high open loop gain. The OL gain approaches that of an ideal op-amp and is tested and guaranteed to be at least 10 billion minimum. The devices also exhibit excellent CMRR and PSRR and their common mode input range includes the negative supply rail.

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