CS3003
Precision Low-voltage Amplifier
Features
& Description
Description
The CS3003 single amplifier is designed for precision
amplification of low-level signals. This amplifier achieves
excellent offset stability, high open loop gain, and low
noise. The devices also exhibit excellent CMRR and
PSRR. The common mode input range includes the sup-
ply rails. The amplifier operates with any supply voltage
from 2.7 V to 5 V (±1.35 V to ±2.50 V).
Low Offset:
– 10
μV
Max.
Low Drift:
– 0.05
μV/°C
Max.
Low Noise:
– 17 nV/√Hz
Open-loop Voltage Gain:
– 150 dB Typ.
Rail-to-Rail Inputs
Rail-to-Rail Output Swing
– to within 10 mV of supply voltage
Pin Configuration
CS3003
(Top View)
1.0 mA Supply Current
Slew rate:
– 0.25 V/μs
NC
-IN
+IN
V-
1
1
2
3
4
-
+
8
7
6
5
NC
V+
1
Applications
Thermocouple/Thermopile Amplifiers
Load Cell and Bridge Transducer Amplifiers
Precision Instrumentation
Battery-powered Systems
Output
NC
1
8-Lead SOIC
1. Must not be connected.
1000
200
150
100
100
50
0
10
-50
-100
-150
1
0.01
-200
0.1
1
10
0
1
2
3
4
5
6
7
8
9
10
Frequency (Hz)
Time (sec)
Noise vs. Frequency (Measured)
0.01 Hz to 10 Hz Noise Performance
Cirrus Logic, Inc.
Copyright
Cirrus Logic, Inc. 2009
(All Rights Reserved)
JUL ‘09
DS735F2
CIRRUS [ CIRRUS LOGIC ]
