CS3004_09 Datasheet, PDF (1/10 Pages) Cirrus Logic – Precision Low-voltage Amplifier

CS3004
Precision Low-voltage Amplifier
Features & Description
 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
 2.1 mA Supply Current
 Slew rate:
– 0.25 V/μs
Applications
 Thermocouple/Thermopile Amplifiers
 Load Cell and Bridge Transducer Amplifiers
 Precision Instrumentation
 Battery-powered Systems
Description
The CS3004 dual amplifier is designed for precision am-
plification of low-level signals. These amplifiers achieve
excellent offset stability, hi gh open loop gain, and low
noise. T he d evices also exhibit e xcellent CMRR an d
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).
Pin Configurations
CS3004
(Top View)
Out A 1
-In A 2
+In A 3
V- 4
-A+
+B-
8 V+
7 Out B
6 -In B
5 +In B
8-Lead SOIC
1. Must not be connected.
1000
100
10
1
0.01
0.1
1
Frequency (Hz)
Noise vs. Frequency (Measured)
200
150
100
50
0
-50
-100
-150
-200
10
0 1 2 3 4 5 6 7 8 9 10
Time (sec)
0.01 Hz to 10 Hz Noise Performance
Cirrus Logic, Inc.
http://www.cirrus.com
Copyright  Cirrus Logic, Inc. 2009
(All Rights Reserved)
JUL ‘09
DS719F2