CS3004 Datasheet, PDF (1/8 Pages) Cirrus Logic – Precision Dual Low-voltage Amplifier

CS3004
Precision Dual 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, 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).
Pin Configurations
CS3004
(Top View)
Out A 1
-In A 2
+In A 3
V- 4
-A+
+B-
8 V+ _{OUT A 1}
7 Out B -IN A 2
6 -In B ^{+IN A 3}
5 +In B
V- 4
8-Lead SOIC
A
–+
Exposed
Thermal
Die Pad
B
+–
QFN-8
8 V+
7 OUT B
6 -IN B
5 +IN B
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
Preliminary Product Information
This document contains information for a new product.
Cirrus Logic reserves the right to modify this product without notice.
Cirrus Logic, Inc.
http://www.cirrus.com
Copyright © Cirrus Logic, Inc. 2006
(All Rights Reserved)
AUG ‘06
DS719PP3