CS3004
Precision Dual Low-voltage Amplifier
Features
& Description
Low Offset:
– 10
µV
Max.
Description
The CS3004 dual amplifier is designed for precision am-
plification of low-level signals. These amplifiers achieve
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 amplifiers operate 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
2.1 mA Supply Current
Slew rate:
– 0.25 V/µs
Out A 1
-In A 2
+In A 3
V- 4
A
- +
B
+ -
CS3004
(Top View)
8 V+
7 Out B
6 -In B
5 +In B
OUT A
1
-IN A
2
+IN A
3
V-
4
A
– +
8
V+
Exposed
Thermal
Die Pad
Applications
Thermocouple/Thermopile Amplifiers
Load Cell and Bridge Transducer Amplifiers
Precision Instrumentation
Battery-powered Systems
7
OUT B
6
-IN B
5
+IN B
B
+ –
8-Lead SOIC
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
Preliminary Product Information
Cirrus Logic, Inc.
This document contains information for a new product.
Cirrus Logic reserves the right to modify this product without notice.
Copyright
©
Cirrus Logic, Inc. 2006
(All Rights Reserved)
AUG ‘06
DS719PP3
CIRRUS [ CIRRUS LOGIC ]
