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CS3012 Datasheet(PDF) 1 Page - Cirrus Logic |
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CS3012 Datasheet(HTML) 1 Page - Cirrus Logic |
1 / 18 page http://www.cirrus.com Copyright © Cirrus Logic, Inc. 2007 (All Rights Reserved) CS3011 CS3012 Precision Low-voltage Amplifier; DC to 1 kHz Features & Description Low Offset: 10 µV Max Low Drift: 0.05 µV/°C Max Low Noise –12 nV/ √Hz @ 0.5 Hz – 0.1 to 10 Hz = 250 nVp-p – 1/f corner @ 0.08 Hz Open-loop Voltage Gain – 300 dB Typ –200 dB Min Rail-to-rail Output Swing Slew Rate: 2 V/ µs Applications Thermocouple/Thermopile Amplifiers Load Cell and Bridge Transducer Amplifiers Precision Instrumentation Battery-powered Systems Description The CS3011 single amplifier and the CS3012 dual am- plifier are designed for precision amplification of low- level signals and are ideally suited to applications that require very high closed-loop gains. These amplifiers achieve excellent offset stability, super-high open-loop gain, and low noise over time and temperature. The de- vices also exhibit excellent CMRR and PSRR. The common mode input range includes the negative supply rail. The amplifiers operate with any total supply voltage from 2.7 V to 6.7 V (±1.35 V to ±3.35 V). Pin Configurations PDWN -In +In V- NC V+ Output NC 1 2 3 4 8 7 6 5 - + CS3011 8-lead SOIC Out A -In A +In A V- V+ Out B -In B +In B 1 2 3 4 8 7 6 5 A B - - + + CS3012 8-lead SOIC CS3011 R1 100 R2 64.9k C1 0.015 µF Dexter Research Thermopile ST60 Thermopile Amplifier with a Gain of 650 V/V 1 10 100 0.001 0.010 0.1 1 10 Frequency (Hz) Noise vs. Frequency (Measured) NOV ‘07 DS597F5 |
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