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AD8698 데이터시트 PDF




Analog Devices에서 제조한 전자 부품 AD8698은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


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부품번호 AD8698 기능
기능 Rail-to-Rail Output Operational Amplifier
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AD8698 데이터시트, 핀배열, 회로
www.DataSheet4U.com
FEATURES
Low offset voltage: 100 µV max
Low offset voltage drift: 2 µV/°C max
Low input bias current: 700 pA max
Low noise: 8 nV/Hz
High common-mode rejection: 118 dB min
Wide operating temperature: 40°C to +85°C
No phase reversal
APPLICATIONS
Photodiode amplifier
Sensors and controls
Multipole filters
Integrator
Dual Precision, Rail-to-Rail Output
Operational Amplifier
AD8698
CONNECTION DIAGRAMS
8-Lead SOIC
(R-8)
OUT A 1
8 V+
–IN A 2 AD8698 7 OUT B
+IN A 3 TOP VIEW 6 –IN B
V– 4 (Not to Scale) 5 +IN B
8-Lead MSOP
(RM-8)
OUT A 1
–IN A 2
AD8698
8 V+
7 OUT B
+IN A 3 TOP VIEW 6 –IN B
V– 4 (Not to Scale) 5 +IN B
Figure 1.
GENERAL DESCRIPTION
The AD8698 is a high precision, rail-to-rail output, low noise,
low input bias current operational amplifier. Offset voltage is a
respectable 100 µV max and drift over temperature is below
2 µV/°C, eliminating the need for manual offset trimming. The
AD8698 is ideal for high impedance sensors, minimizing offset
errors due to input bias and offset currents.
The rail-to-rail output maximizes dynamic range in a variety of
applications, such as photodiode amplifiers, DAC I/V
amplifiers, filters, and ADC input amplifiers.
The AD8698 dual amplifiers are offered in 8-lead MSOP and
narrow 8-lead SOIC packages. The MSOP version is available
in tape and reel only.
Rev. 0
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. Trademarks and
registered trademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.326.8703 © 2004 Analog Devices, Inc. All rights reserved.




AD8698 pdf, 반도체, 판매, 대치품
AD8698
VS = ±2.5 V, VCM = 0 V (@TA = 25oC, unless otherwise noted.)
Table 2.
Parameter
Symbol Conditions
INPUT CHARACTERISTICS
Offset Voltage
Offset Voltage Drift
Input Bias Current
Input Offset Current
Input Voltage Range
Common-Mode Rejection Ratio
Large Signal Voltage Gain
Input Capacitance
OUTPUT CHARACTERISTICS
Output Voltage Swing (Ref. to GND)
(Ref. to GND)
POWER SUPPLY
Power Supply Rejection Ratio
Supply Current
Supply Voltage
DYNAMIC PERFORMANCE
Slew Rate
Gain Bandwidth Product
Phase Margin
NOISE PERFORMANCE
Input Noise Voltage
Input Voltage Noise Density
Input Voltage Noise Density
Current Noise Density
VOS
VOS/T
IB
IOS
IVR
CMRR
AVO
CDIFF
CCM
40°C < TA < +85°C
40°C < TA < +85°C
40°C < TA < +85°C
40°C < TA < +85°C
40°C < TA < +85°C
VCM = ±13.5 V
RL = 2 k, VO = ±13.5 V
VOH IL = 1 mA, 40°C < TA < +85°C
VOH IL = 5 mA, 40°C < TA < +85°C
VOL IL = 1 mA, 40°C < TA < +85°C
VOL IL = 5 mA, TA = 25°C
IL= 5mA, 40°C<TA<+85°C
PSRR
ISY
Vs
SR
GBP
Øo
±2.5 V < VS < ±15 V
VO = 0 V
40°C < TA < +85°C
40°C < TA < +85°C
RL = 2 k
en p-p
en
en
in
0.1 Hz < f < 10Hz
f = 10 Hz
f =1 kHz
f = 1 kHz
Min Typ
Max
20 100
300
2
700
1500
700
1500
1.5 +1.5
105 120
600 1200
6.4
4.6
2.35 2.44
2.1 2.29
2.43 2.2
2.15 1.9
1.6
114 132
2.3
±2.5
2.8
3.3
±15
0.4
1
60
0.6
15
8
0.2
Unit
µV
µV
µV/°C
pA
pA
pA
pA
V
dB
V/mV
pF
pF
V
V
V
V
dB
mA
mA
V
V/µs
MHz
Degrees
µV p-p
nV/Hz
nV/Hz
pA/Hz
Rev. 0 | Page 4 of 20

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AD8698 전자부품, 판매, 대치품
VS = ±15V
VIN = 4V p-p
CL = 1nF
TIME (100µs/DIV)
Figure 8. Large Signal Transient Response
VS = ±15V
VIN = 200mV p-p
CL = 1nF
TIME (100µs/DIV)
Figure 9. Small Signal Transient Response
50
VS = ±15V
VIN = 200mV
AV = 1
30
20
10
0
0
500
1000
1500
2000
2500
3000
CAPACITIVE LOAD (pF)
Figure 10. Overshoot vs. Load Capacitance
AD8698
0
VIN
–200
15
VOUT
0
VS = ±15V
VIN = 200mV p-p
AV = –100
TIME (10µs/DIV)
Figure 11. Positive Overvoltage Recovery
200
VIN
0
0
VS = ±15V
VIN = 200mV
AV = –100
–15
VOUT
120
100
80
60
40
20
0
1k
TIME (400µs/DIV)
Figure 12. Negative Overvoltage Recovery
VS = ±15V
10k 100k
1M
FREQUENCY (Hz)
Figure 13. CMRR vs. Frequency
10M
Rev. 0 | Page 7 of 20

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