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AD8551 데이터시트 PDF




Analog Devices에서 제조한 전자 부품 AD8551은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


 

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부품번호 AD8551 기능
기능 Rail-to-Rail Input/Output Operational Amplifiers
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AD8551 데이터시트, 핀배열, 회로
Data Sheet
Zero-Drift, Single-Supply, Rail-to-Rail
Input/Output Operational Amplifiers
AD8551/AD8552/AD8554
FEATURES
Low offset voltage: 1 μV
Input offset drift: 0.005 μV/°C
Rail-to-rail input and output swing
5 V/2.7 V single-supply operation
High gain, CMRR, PSRR: 130 dB
Ultralow input bias current: 20 pA
Low supply current: 700 μA/op amp
Overload recovery time: 50 μs
No external capacitors required
APPLICATIONS
Temperature sensors
Pressure sensors
Precision current sensing
Strain gage amplifiers
Medical instrumentation
Thermocouple amplifiers
GENERAL DESCRIPTION
This family of amplifiers has ultralow offset, drift, and bias
current. The AD8551, AD8552, and AD8554 are single, dual,
and quad amplifiers featuring rail-to-rail input and output swings.
All are guaranteed to operate from 2.7 V to 5 V with a single supply.
The AD8551/AD8552/AD8554 provide the benefits previously
found only in expensive auto-zeroing or chopper-stabilized
amplifiers. Using Analog Devices, Inc. topology, these new
zero-drift amplifiers combine low cost with high accuracy. No
external capacitors are required.
With an offset voltage of only 1 μV and drift of 0.005 μV/°C, the
AD8551/AD8552/AD8554 are perfectly suited for applications
in which error sources cannot be tolerated. Temperature,
position and pressure sensors, medical equipment, and strain
gage amplifiers benefit greatly from nearly zero drift over their
operating temperature range. The rail-to-rail input and output
swings provided by the AD8551/AD8552/AD8554 make both
high-side and low-side sensing easy.
The AD8551/AD8552/AD8554 are specified for the extended
industrial/automotive temperature range (−40°C to +125°C).
The AD8551 single amplifier is available in 8-lead MSOP and
8-lead narrow SOIC packages. The AD8552 dual amplifier is
available in 8-lead narrow SOIC and 8-lead TSSOP surface-
mount packages. The AD8554 quad is available in 14-lead
narrow SOIC and 14-lead TSSOP packages.
PIN CONFIGURATIONS
NC
–IN A
+IN A
V–
18
AD8551
45
NC
V+
OUT A
NC
NC = NO CONNECT
Figure 1. 8-Lead MSOP (RM Suffix)
NC 1
–IN A 2
+IN A 3
V– 4
AD8551
8 NC
7 V+
6 OUT A
5 NC
NC = NO CONNECT
Figure 2. 8-Lead SOIC (R Suffix)
OUT A
–IN A
+IN A
V–
18
AD8552
45
V+
OUT B
–IN B
+IN B
Figure 3. 8-Lead TSSOP (RU Suffix)
OUT A 1
–IN A 2
+IN A 3
V– 4
AD8552
8 V+
7 OUT B
6 –IN B
5 +IN B
Figure 4. 8-Lead SOIC (R Suffix)
OUT A
–IN A
+IN A
V+
+IN B
–IN B
OUT B
1 14
AD8554
78
OUT D
–IN D
+IN D
V–
+IN C
–IN C
OUT C
Figure 5. 14-Lead TSSOP (RU Suffix)
OUT A 1
–IN A 2
+IN A 3
V+ 4
+IN B 5
–IN B 6
OUT B 7
AD8554
14 OUT D
13 –IN D
12 +IN D
11 V–
10 +IN C
9 –IN C
8 OUT C
Figure 6. 14-Lead SOIC (R Suffix)
Rev. F
Document Feedback
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityisassumedbyAnalogDevices for itsuse,nor foranyinfringementsofpatentsor other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 ©1999–2015 Analog Devices, Inc. All rights reserved.
Technical Support
www.analog.com




AD8551 pdf, 반도체, 판매, 대치품
AD8551/AD8552/AD8554
Data Sheet
VS = 2.7 V, VCM = 1.35 V, VO = 1.35 V, TA = 25°C, unless otherwise noted.
Table 2.
Parameter
INPUT CHARACTERISTICS
Offset Voltage
Input Bias Current
AD8551/AD8554
AD8552
AD8552
Input Offset Current
AD8551/AD8554
AD8552
AD8552
Input Voltage Range
Common-Mode Rejection Ratio
Large Signal Voltage Gain1
Offset Voltage Drift
OUTPUT CHARACTERISTICS
Output Voltage High
Output Voltage Low
Short-Circuit Limit
Output Current
POWER SUPPLY
Power Supply Rejection Ratio
Supply Current/Amplifier
DYNAMIC PERFORMANCE
Slew Rate
Overload Recovery Time
Gain Bandwidth Product
NOISE PERFORMANCE
Voltage Noise
Voltage Noise Density
Current Noise Density
Symbol
VOS
IB
IOS
CMRR
AVO
ΔVOS/ΔT
VOH
VOL
ISC
IO
PSRR
ISY
SR
GBP
en p-p
en
in
Conditions
−40°C ≤ TA ≤ +125°C
−40°C ≤ TA ≤ +125°C
−40°C ≤ TA ≤ +85°C
−40°C ≤ TA ≤ +125°C
−40°C ≤ TA ≤ +125°C
−40°C ≤ TA ≤ +85°C
−40°C ≤ TA ≤ +125°C
VCM = 0 V to 2.7 V
−40°C ≤ TA ≤ +125°C
RL = 10 kΩ, VO = 0.3 V to 2.4 V
−40°C ≤ TA ≤ +125°C
−40°C ≤ TA ≤ +125°C
RL = 100 kΩ to GND
RL = 100 kΩ to GND @ −40°C to +125°C
RL = 10 kΩ to GND
RL = 10 kΩ to GND @ −40°C to +125°C
RL = 100 kΩ to V+
RL = 100 kΩ to V+ @ −40°C to +125°C
RL = 10 kΩ to V+
RL = 10 kΩ to V+ @ −40°C to +125°C
−40°C to +125°C
−40°C to +125°C
VS = 2.7 V to 5.5 V
−40°C ≤ TA ≤ +125°C
VO = 0 V
−40°C ≤ TA ≤ +125°C
RL = 10 kΩ
0 Hz to 10 Hz
f = 1 kHz
f = 10 Hz
1 Gain testing is dependent upon test bandwidth.
Min
0
115
110
110
105
2.685
2.685
2.67
2.67
±10
120
115
Typ Max
1
10
1.0
160
2.5
10
150
30
150
130
130
140
130
0.005
5
10
50
1.5
300
4
50
200
150
400
2.7
0.04
2.697
2.696
2.68
2.675
1
2
10
15
±15
±10
±10
±5
10
10
20
20
130
130
750 900
950 1000
0.5
0.05
1
1.6
75
2
Unit
μV
μV
pA
nA
pA
nA
pA
pA
pA
pA
V
dB
dB
dB
dB
μV/°C
V
V
V
V
mV
mV
mV
mV
mA
mA
mA
mA
dB
dB
μA
μA
V/μs
ms
MHz
μV p-p
nV/√Hz
fA/√Hz
Rev. F | Page 4 of 24

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AD8551 전자부품, 판매, 대치품
Data Sheet
10k
VSY = 2.7V
TA = 25°C
1k
100
SOURCE
10
SINK
1
0.1
0.0001
0.001
0.01 0.1
1
LOAD CURRENT (mA)
10 100
Figure 13. Output Voltage to Supply Rail vs. Load Current at 2.7 V
0
VCM = 2.5V
VSY = 5V
–250
–500
–750
–1000
–75
–50 –25
0 25 50 75 100 125
TEMPERATURE (°C)
Figure 14. Input Bias Current vs. Temperature
150
1.0
VCM = 2.5V
VSY = 5V
0.8
0.6
5V
2.7V
0.4
0.2
0
–75 –50 –25
0 25 50 75 100 125
TEMPERATURE (°C)
Figure 15. Supply Current vs. Temperature
150
AD8551/AD8552/AD8554
800
TA = +25°C
700
600
500
400
300
200
100
0
0123456
SUPPLY VOLTAGE (V)
Figure 16. Supply Current per Amplifier vs. Supply Voltage
60
VSY = 2.7V
50 CL = 0pF
40 RL =
0
30 45
20 90
10 135
0 180
–10 225
–20 270
–30
–40
10k
100k
1M
FREQUENCY (Hz)
10M
100M
Figure 17. Open-Loop Gain and Phase Shift vs. Frequency at 2.7 V
60
VSY = 5V
50 CL = 0pF
RL =
40
0
30 45
20 90
10 135
0 180
–10 225
–20 270
–30
–40
10k
100k
1M
FREQUENCY (Hz)
10M
100M
Figure 18. Open-Loop Gain and Phase Shift vs. Frequency at 5 V
Rev. F | Page 7 of 24

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