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CS3001 데이터시트 PDF




Cirrus Logic에서 제조한 전자 부품 CS3001은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


 

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부품번호 CS3001 기능
기능 PRECISION LOW VOLTAGE AMPLIFIER
제조업체 Cirrus Logic
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CS3001 데이터시트, 핀배열, 회로
CS3001
CS3002
Precision Low Voltage Amplifier; DC to 2 kHz
Features
Low Offset: 10 µV Max
Low Drift: 0.05 µV/°C Max
Low Noise
– 6 nV/Hz @ 0.5 Hz
– 0.1 to 10 Hz = 125 nVp-p
– 1/f corner @ 0.08 Hz
Open-Loop Voltage Gain
– 300 dB Typical
– 200 dB Minimum
Rail-to-Rail Output Swing
Slew rate: 5 V/µs
Applications
Thermocouple/Thermopile Amplifiers
Load Cell and Bridge Transducer Amplifiers
Precision Instrumentation
Battery-Powered Systems
Description
The CS3001 single amplifier and the CS3002 dual am-
plifier are designed for precision amplification of low
level signals and are ideally suited to applications that
require very high closed loop gains. These amplifiers
achieve excellent offset stability, super high open loop
gain, and low noise over time and temperature. The de-
vices also exhibit excellent CMRR and PSRR. The
common mode input range includes the negative supply
rail. The amplifiers operate with any total supply voltage
from 2.7 V to 6.7 V (±1.35 V to ±3.35 V).
Pin Configurations
CS3001
CS3002
PWDN 1
-In 2
+In 3
V- 4
-
+
8 NC
Out A 1
7 V+
-In A 2
6 Output +In A 3
5 NC
V- 4
A
-
+
+B-
8 V+
7 Out B
6 -In B
5 +In B
8-lead SOIC
8-lead SOIC
Noise vs. Frequency (Measured)
100
10
1
0.001
0.01
0.1
Frequency (Hz)
1
10
Dexter Research
Thermopile 1M
CS3001
R2
64.9k
R1 C1
100 0.015µF
Thermopile Amplifier with a Gain of 650 V/V
Cirrus Logic, Inc.
http://www.cirrus.com
Copyright © Cirrus Logic, Inc. 2004
(All Rights Reserved)
OCT ‘04
DS490F3
1




CS3001 pdf, 반도체, 판매, 대치품
1.2 Absolute Maximum Ratings
Parameter
Supply Voltage
[(V+) - (V-)]
Input Voltage
Storage Temperature Range
2. PERFORMANCE PLOTS
Noise vs. Frequency (Measured)
100
10
1
0.001
0.01 0.1
Frequency (Hz)
1
10
Figure 1. Noise vs Frequency (Measured)
100
50
0
-50
-100
0 1 2 3 4 5 6 7 8 9 10
TIME (Sec)
Figure 2. 0.01 Hz to 10 Hz Noise
CS3001
CS3002
Min
V- -0.3
-65
Typ Max
6.8
V+ +0.3
+150
Unit
V
V
ºC
1000
100
10
1
10 100 1K 10K 100K 1M 10M
Frequency (Hz)
Figure 3. Noise vs Frequency
100
75
50
25
0
-25
-50
-75
-100
Time (1 Hour)
σ = 13 nV
Figure 4. Offset Voltage Stability (DC to 3.2 Hz)
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CS3001 전자부품, 판매, 대치품
CS3001
CS3002
3. CS3001/CS3002 OVERVIEW
The CS3001/CS3002 amplifiers are designed for
precision measurement of signals from DC to
2 kHz when operating from a supply voltage of
+2.7 V to +6.7 V (± 1.35 to ± 3.35 V). The ampli-
fiers are designed with a patented architecture that
utilizes multiple amplifier stages to yield very high
open loop gain at frequencies of 10 kHz and below.
The amplifiers yield low noise and low offset drift
while consuming relatively low supply current. An
increase in noise floor above 2 kHz is the result of
intermediate stages of the amplifier being operated
at very low currents. The amplifiers are intended
for amplifying small signals with large gains in ap-
plications where the output of the amplifier can be
band-limited to frequencies below 2 kHz.
3.1 Open Loop Gain and Phase Response
Figure 9 illustrates the open loop gain and phase re-
sponse of the CS3001/CS3002. The gain slope of
the amplifier is about –100 dB/decade between
500 Hz and 60 kHz and transitions to –20 dB/de-
cade between 60 kHz and its unity gain crossover
frequency at about 4.8 MHz. Phase margin at unity
gain is about 70 degrees; gain margin is about
20 dB.
100
80
-100 dB/ dec
60
40
-20 dB/ dec
20
0
-45
-90
-135
-180
-225
-270
-315
-360
10K 100K 1M 10M
Figure 9. CS3001/CS3002 Open Loop Gain and Phase Response
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관련 데이터시트

부품번호상세설명 및 기능제조사
CS3001

PRECISION LOW VOLTAGE AMPLIFIER

Cirrus Logic
Cirrus Logic
CS3002

Precision Low-voltage Amplifier

Cirrus Logic
Cirrus Logic

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