CS3001_09 Datasheet, PDF (1/16 Pages) Cirrus Logic – Precision Low-voltage Amplifier; DC to 2 kHz

CS3001
CS3002
Precision Low-voltage Amplifier; DC to 2 kHz
Features & Description
Low Offset: 10 μV Max
Low Drift: 0.05 μV/°C Max
Low Noise
– 6 nV/√Hz @ 0.5 Hz
– 0.1 to 10 Hz = 125 nVp-p
– 1/f corner @ 0.08 Hz
Open-loop Voltage Gain
– 300 dB Typical
– 200 dB Minimum
Rail-to-rail Output Swing
Slew Rate: 5 V/μs
Applications
Thermocouple/Thermopile Amplifiers
Load Cell and Bridge Transducer Amplifiers
Precision Instrumentation
Battery-powered Systems
Description
The CS3001 single amplifier and the CS3002 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
CS3001
CS3002
PWDN 1
8 NC
Out A 1
8 V+
-In 2
-
+In 3
+
V- 4
7 V+
6 Output
5 NC
-In A 2
+In A 3
V- 4
-A+
+B-
7 Out B
6 -In B
5 +In B
8-lead SOIC
8-lead SOIC
Noise vs. Frequency (Measured)
100
10
1
0.001
0.01
0.1
1
Frequency (Hz)
Dexter Research
Thermopile 1M
CS3001
R2
64.9k
R1
C1
100
0.015μF
10
Thermopile Amplifier with a Gain of 650 V/V
http://www.cirrus.com
Copyright  Cirrus Logic, Inc. 2009
(All Rights Reserved)
JUL ‘09
DS490F9