Cirrus Logic CS3013 - Manual

Copyright  Cirrus Logic, Inc. 2009
(All Rights Reserved)
Cirrus Logic, Inc.
http://www.cirrus.com
10/15/09
CS3013
Low-power / Low-voltage Precision Amplifier
Features & Description
 Low Offset:
– 10 μV Typ.
 Low Drift:
– 0.05 μV/°C Max.
 Low Noise:
– 22 nV/ √Hz
 Open-loop Voltage Gain:
– 135 dB Typ.
 Rail-to-Rail Inputs
 Rail-to-Rail Output Swing
– to within 20 mV of supply voltage
 0.5 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 CS3013 single amplifier is designed for precision
amplification of low-level signals. These amplifiers
achieve excellent offset stability, high open loop gain,
and low noise. The device also exhibits excellent CMRR
and PSRR. The common mode input range includes the
supply rails. The amplifiers operate with any supply volt-
age from 2.7 V to 5 V (±1.35 V to ±2.50 V).
Pin Configurations
8-Lead SOIC
CS3013
(Top View)
1. Must not be connected.
NC
-IN
+IN
V-
NC
V+
Output
NC
-
+
1 1
1
1
2
3
4
8
7
6
5
Noise vs. Frequency (Measured) 0.01 Hz to 10 Hz Noise Performance
1
10
100
1000
0.01 0.1 1 10
Frequency (Hz)
-300
-200
-100
0
100
200
300
0 1 2 3 4 5 6 7 8 9 10
Time (sec)
OCT ‘09
DS736F3