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AD8677 데이터시트 PDF




Analog Devices에서 제조한 전자 부품 AD8677은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


 

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부품번호 AD8677 기능
기능 Maximum Offset Voltage Op Amp
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AD8677 데이터시트, 핀배열, 회로
130 μV Maximum Offset Voltage
Op Amp in TSOT
AD8677
FEATURES
Low offset voltage: 130 μV max
Input offset drift: 1.5 μV/°C max
Low noise: 0.25 μV p-p
High gain, CMRR and PSRR: 115 dB min
Low supply current: 1.1 mA
Wide supply voltage range: ±4 V to ±18 V operation
APPLICATIONS
Medical and industrial instrumentation
Sensors and controls
Thermocouple
RTDs
Strain bridges
Shunt current measurements
Precision filters
GENERAL DESCRIPTION
The AD8677 is the next generation of precision, ultralow offset
amplifiers. It builds on the high performance of the OP07 and
integrates lower power (1.1 mA typical), lower input bias
current (±1 nA maximum), and higher CMRR/PSRR (130 dB)
in the small TSOT package. Operation is fully specified from ±5
V to ±15 V supply.
The AD8677 provides higher accuracy than industry-standard
OP07-type amplifiers due to Analog Devices’ iPolar™ process,
which supports enhanced performance in a smaller footprint.
These performance enhancements include wider output swing,
lower power, and higher CMRR (common-mode rejection
ratio) and PSRR (power supply rejection ratio). The AD8677
maintains stability of offsets and gain virtually regardless of
variations in time or temperature. Excellent linearity and gain
accuracy can be maintained at high closed-loop gains.
The AD8677 is fully specified over the extended industrial tem-
perature range of −40°C to +125°C. The AD8677 amplifier is
available in the tiny, 5-lead TSOT and the popular 8-lead,
narrow SOIC lead-free packages.
PIN CONFIGURATIONS
OUT 1
V– 2
+IN 3
AD8677
TOP VIEW
(Not to Scale)
5 V+
4 –IN
Figure 1. 5-Lead TSOT (UJ-5)
NULL 1
8 NULL
–IN 2
+IN 3
V– 4
AD8677
TOP VIEW
(Not to Scale)
7 V+
6 OUT
5 NC
NC = NO CONNECT
Figure 2. 8-Lead SOIC_N (R-8)
Rev. A
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or 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
www.analog.com
Fax: 781.461.3113 © 2005-2011 Analog Devices, Inc. All rights reserved.




AD8677 pdf, 반도체, 판매, 대치품
SPECIFICATIONS
VS = ±5.0 V, TA = +25°C, unless otherwise specified.
Table 1.
Parameter
INPUT CHARACTERISTICS
Offset Voltage
Symbol
VOS
Input Bias Current
IB
Input Offset Current
IOS
Input Voltage Range
Common-Mode Rejection Ratio
CMRR
Open-Loop Gain
AVO
OUTPUT CHARACTERISTICS
Output Voltage Swing
ΔVOS/ΔT
VOUT
Short-Circuit Limit
Output Current
POWER SUPPLY
Power Supply Rejection Ratio
Supply Current/Amplifier
DYNAMIC PERFORMANCE
Slew Rate
Gain Bandwidth Product
Phase Margin
NOISE PERFORMANCE
Voltage Noise
Voltage Noise Density
Current Noise Density
ISC
IO
PSRR
ISY
SR
GBP
en p-p
en
in
AD8677
Test Conditions/Comments Min Typ Max
−40°C TA +125°C
−40°C TA +125°C
−40°C TA +125°C
VCM = ±3 V
−40°C TA +125°C
RL = 2 kΩ to ground, VO = ±3 V
−40°C TA +125°C
−40°C TA +125°C
−3.5
120
120
1000
1000
40 130
350
0.2 1
1
0.1 1
1
+3.5
127
10000
0.5 1.4
RL = 10 kΩ to ground
−40°C TA +125°C
RL = 2 kΩ to ground
−40°C TA +125°C
VO = 3.5 V
±3.95
±3.95
±3.9
±3.9
±4.1
±4
27
15
VS = ±4.0 V to ±18.0 V
−40°C TA +125°C
VO = 0 V
−40°C TA +125°C
115 130
110
1.1 1.25
1.7
RL = 10 kΩ
0.2
0.6
80
0.1 Hz to 10 Hz
f = 1 kHz
f = 1 kHz
0.28
10
0.074
Unit
μV
μV
nA
nA
nA
nA
V
dB
dB
V/mV
V/mV
μV/°C
V
V
V
V
mA
mA
dB
dB
mA
mA
V/μs
MHz
Degrees
μV p-p
nV/Hz
pA/Hz
Rev. A | Page 3 of 16

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AD8677 전자부품, 판매, 대치품
AD8677
TYPICAL PERFORMANCE CHARACTERISTICS
50
VS = ±15V
45
40
35
30
25
20
15
10
5
0
–100 –80 –60 –40 –20 0 20 40 60 80 100
VOS (µV)
Figure 3. Input Offset Voltage Distribution
40
VS = ±5V
35
30
25
20
15
10
5
0
–100 –80 –60 –40 –20 0
20 40 60 80 100
VOS (µV)
Figure 4. Input Offset Voltage Distribution
50
VS = ±5V
40
30
20
10
0
0 0.15 0.30 0.45 0.60 0.75 0.90 1.05
TCVOS (µV/°C)
Figure 5. TCVOS vs. Number of Amplifiers
45
40
35
30
25
20
15
10
5
0
0
VS = ±15V
0.15 0.30 0.45 0.60 0.75 0.90 1.05 1.20
TCVOS (µV/°C)
Figure 6. TCVOS vs. Number of Amplifiers
200
VS = ±15V
150
100
50
0
–50
–100
–150
–200
–50
0 50 100
TEMPERATURE (°C)
150
Figure 7. Offset Voltage vs. Temperature
200
VS = ±5V
150
100
50
0
–50
–100
–150
–200
–50
0 50 100
TEMPERATURE (°C)
150
Figure 8. Offset Voltage vs. Temperature
Rev. A | Page 6 of 16

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