CS3003
Precision Low-voltage Amplifier
Features
& Description
Low Offset:
– 10
µV
Max.
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 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 Configurations
1.0 mA Supply Current
Slew rate:
– 0.25 V/µs
NC
1
CS3003
(Top View)
1
Exposed
Thermal
2
Die Pad
1
2
3
4
8
Exposed
Thermal
2
Die Pad
1
2
3
4
-
+
8
NC
7
V+
NC
1
-IN
+IN
V-
NC
1
V+
Output
NC
1
Applications
Thermocouple/Thermopile Amplifiers
Load Cell and Bridge Transducer Amplifiers
Precision Instrumentation
Battery-powered Systems
-IN
+IN
V-
–
+
7
6
5
6
Output
5
NC
1
8-Lead SOIC
1. Must not be connected.
2. Connect thermal die pad to V-.
QFN-8
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. 2007
(All Rights Reserved)
AUG ‘07
DS735F1