CS3013_0910 Datasheet, PDF (1/10 Pages) Cirrus Logic – Low-power / Low-voltage Precision Amplifier

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
CS3013
(Top View)
NC¹ 1
-IN 2
-
+IN 3
+
V- ₄
8 NC¹
7 V+
6 Output
5 NC¹
8-Lead SOIC
1. Must not be connected.
1000
100
10
1
0.01
0.1
1
Frequency (Hz)
Noise vs. Frequency (Measured)
300
200
100
0
-100
-200
10
-300
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)
OCT ‘09
DS736F3