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Número de pieza | CS3004 | |
Descripción | Precision Dual Low-voltage Amplifier | |
Fabricantes | Cirrus Logic | |
Logotipo | ||
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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
1 page CS3004
1.3 Absolute Maximum Ratings
Parameter
Supply Voltage
[(V+) – (V-)]
Input Voltage
Storage Temperature Range
2. TYPICAL PERFORMANCE PLOTS
1000
100
10
1
0.01
0.1 1
Frequency (Hz)
Figure 1. Noise vs Frequency (Measured)
10
Min Typ
Max
2.7 -
5.5
(V-) – 0.3 - (V+) + 0.3
-65 - +150
Unit
V
V
ºC
200
150
100
50
0
-50
-100
-150
-200
0
12345678
Time (sec)
Figure 2. 0.01 Hz to 10 Hz Noise
9 10
180 270
160 225
140 180
120 135
100 90
80 45
60 0
40 -45
20 -90
0 -135
-20 -180
0.001 0.01 0.1 1 10 100 1k 10k 100k 1M 10M
Frequency (Hz)
Figure 3. Gain & Phase vs. Frequency (2.7 V)
180 270
160 225
140 180
120 135
100 90
80 45
60 0
40 -45
20 -90
0 -135
-20 -180
0.001 0.01 0.1 1 10 100 1k 10k 100k 1M 10M
Frequency (Hz)
Figure 4. Gain & Phase vs. Frequency (5 V)
2.0
1.9
1.8
1.7
1.6
1.5
2.5 3 3.5 4 4.5 5 5.5
Supply voltage
Figure 5. Supply Current vs. Supply Voltage
6
DS719PP3
2.5
2.0
1.5
1.0
0.5
0.0
-40
-15
10 35 60
Temperature (°C)
85 110
Figure 6. Supply Current vs. Temperature
5
5 Page |
Páginas | Total 8 Páginas | |
PDF Descargar | [ Datasheet CS3004.PDF ] |
Número de pieza | Descripción | Fabricantes |
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CS3004 | Precision Dual Low-voltage Amplifier | Cirrus Logic |
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