器件名称: CS3011_09
功能描述: Precision Low-voltage Amplifier; DC to 1 kHz
文件大小: 732.57KB 共18页
简 介:CS3011 CS3012 Precision Low-voltage Amplifier; DC to 1 kHz
Features & Description
Offset: 10 μV Max Low Drift: 0.05 μV/°C Max Low Noise
Low
Description
The CS3011 single amplifier and the CS3012 dual amplifier are designed for precision amplification of lowlevel 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 devices 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).
– 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
Pin Configurations
CS3011
PDWN 1 -In +In V2 3 4 + 8 7 6 5 NC V+ Output NC Out A 1 -In A 2 +In A 3 V- 4 A - + + B
CS3012
8 V+ 7 Out B 6 -In B 5 +In B
Applications
Thermocouple/Thermopile
Amplifiers Load Cell and Bridge Transducer Amplifiers Precision Instrumentation Battery-powered Systems
8-lead SOIC
8-lead SOIC
Noise vs. Frequency (Measured)
100
nV/√Hz
CS3011 Dexter Research Thermopile ST60
10
R2 64.9k
1 0.001
0.010
0.1 Frequency (Hz)
1
10
R1 100 C1 0.015μF
http://www.cirrus.com
Copyright Cirrus Logic, Inc. 2009 (All Rights Reserved)
JUL ‘09 DS597F6
CS3011 CS3012
TABLE OF CONTENTS
1. CHARACTERISTICS AND SPECIFI……