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AD8618 데이터시트 PDF




Analog Devices에서 제조한 전자 부품 AD8618은 전자 산업 및 응용 분야에서
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부품번호 AD8618 기능
기능 Rail-to-Rail Input/Output Operational Amplifiers
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AD8618 데이터시트, 핀배열, 회로
Data Sheet
Precision, 20 MHz, CMOS, Rail-to-Rail
Input/Output Operational Amplifiers
AD8615/AD8616/AD8618
FEATURES
Low offset voltage: 65 μV maximum
Single-supply operation: 2.7 V to 5.0 V
Low noise: 8 nV/√Hz
Wide bandwidth: >20 MHz
Slew rate: 12 V/μs
High output current: 150 mA
No phase reversal
Low input bias current: 1 pA
Low supply current: 2 mA
Unity-gain stable
APPLICATIONS
Barcode scanners
Battery-powered instrumentation
Multipole filters
Sensors
ASIC input or output amplifiers
Audio
Photodiode amplification
GENERAL DESCRIPTION
The AD8615/AD8616/AD8618 are single/dual/quad, rail-to-
rail, input and output, single-supply amplifiers featuring very
low offset voltage, wide signal bandwidth, and low input voltage
and current noise. The parts use a patented trimming technique
that achieves superior precision without laser trimming. The
AD8615/AD8616/AD8618 are fully specified to operate from
2.7 V to 5 V single supplies.
The combination of >20 MHz bandwidth, low offset, low noise,
and low input bias current makes these amplifiers useful in a
wide variety of applications. Filters, integrators, photodiode
amplifiers, and high impedance sensors all benefit from the
combination of performance features. AC applications benefit from
the wide bandwidth and low distortion. The AD8615/AD8616/
AD8618 offer the highest output drive capability of the DigiTrim®
family, which is excellent for audio line drivers and other low
impedance applications.
Applications for the parts include portable and low powered
instrumentation, audio amplification for portable devices,
portable phone headsets, bar code scanners, and multipole
filters. The ability to swing rail-to-rail at both the input and
output enables designers to buffer CMOS ADCs, DACs, ASICs,
and other wide output swing devices in single-supply systems.
PIN CONFIGURATIONS
OUT 1
5 V+
AD8615
V– 2
TOP VIEW
+IN 3 (Not to Scale) 4 –IN
Figure 1. 5-Lead TSOT-23 (UJ-5)
OUT A 1
8 V+
–IN A 2 AD8616 7 OUT B
+IN A 3 TOP VIEW 6 –IN B
V– 4 (Not to Scale) 5 +IN B
Figure 2. 8-Lead MSOP (RM-8)
OUT A 1
8 V+
–IN A 2 AD8616 7 OUT B
+IN A 3 TOP VIEW 6 –IN B
V– 4 (Not to Scale) 5 +IN B
Figure 3. 8-Lead SOIC (R-8)
OUT A
–IN A
+IN A
V+
+IN B
–IN B
OUT B
1 14
AD8618
TOP VIEW
(Not to Scale)
78
OUT D
–IN D
+IN D
V–
+IN C
–IN C
OUT C
Figure 4. 14-Lead TSSOP (RU-14)
OUT A 1
14 OUT D
–IN A 2
13 –IN D
+IN A 3 AD8618 12 +IN D
V+ 4 TOP VIEW 11 V–
+IN B 5 (Not to Scale) 10 +IN C
–IN B 6
9 –IN C
OUT B 7
8 OUT C
Figure 5. 14-Lead SOIC (R-14)
The AD8615/AD8616/AD8618 are specified over the extended
industrial temperature range (−40°C to +125°C). The AD8615
is available in 5-lead TSOT-23 package. The AD8616 is available
in 8-lead MSOP and narrow SOIC surface-mount packages; the
MSOP version is available in tape and reel only. The AD8618 is
available in 14-lead SOIC and TSSOP packages.
Rev. G
Document Feedback
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 ©2004–2014 Analog Devices, Inc. All rights reserved.
Technical Support
www.analog.com




AD8618 pdf, 반도체, 판매, 대치품
AD8615/AD8616/AD8618
VS = 2.7 V, VCM = VS/2, TA = 25°C, unless otherwise noted.
Table 2.
Parameter
INPUT CHARACTERISTICS
Offset Voltage, AD8616/AD8618
Offset Voltage, AD8615
Symbol
VOS
Offset Voltage Drift, AD8616/AD8618
Offset Voltage Drift, AD8615
Input Bias Current
Input Offset Current
Input Voltage Range
Common-Mode Rejection Ratio
Large Signal Voltage Gain
Input Capacitance
OUTPUT CHARACTERISTICS
Output Voltage High
Output Voltage Low
Output Current
Closed-Loop Output Impedance
POWER SUPPLY
Power Supply Rejection Ratio
Supply Current per Amplifier
DYNAMIC PERFORMANCE
Slew Rate
Settling Time
Gain Bandwidth Product
Phase Margin
NOISE PERFORMANCE
Peak-to-Peak Noise
Voltage Noise Density
Current Noise Density
Channel Separation
∆VOS/∆T
IB
IOS
CMRR
AVO
CDIFF
CCM
VOH
VOL
IOUT
ZOUT
PSRR
ISY
SR
tS
GBP
Øm
en p-p
en
in
CS
Conditions
VS = 3.5 V at VCM = 0.5 V and 3.0 V
VCM = 0 V to 2.7 V
−40°C < TA < +125°C
−40°C < TA < +125°C
−40°C < TA < +85°C
−40°C < TA < +125°C
−40°C < TA < +85°C
−40°C < TA < +125°C
VCM = 0 V to 2.7 V
RL = 2 kΩ, VO = 0.5 V to 2.2 V
IL = 1 mA
−40°C < TA < +125°C
IL = 1 mA
−40°C < TA < +125°C
f = 1 MHz, AV = 1
VS = 2.7 V to 5.5 V
VO = 0 V
−40°C < TA < +125°C
RL = 2 kΩ
To 0.01%
0.1 Hz to 10 Hz
f = 1 kHz
f = 10 kHz
f = 1 kHz
f = 10 kHz
f = 100 kHz
Data Sheet
Min Typ Max Unit
23 65 µV
23 100 µV
80 500 µV
800 µV
1.5 7
µV/°C
3 10 µV/°C
0.2 1
pA
50 pA
550 pA
0.1 0.5 pA
50 pA
250 pA
0 2.7 V
80 100
dB
55 150
V/mV
2.5 pF
7.8 pF
2.65 2.68
2.6
11
±50
3
25
30
V
V
mV
mV
mA
70 90
1.7
dB
2 mA
2.5 mA
12 V/µs
<0.3 µs
23 MHz
42 Degrees
2.1
10
7
0.05
−115
−110
µV
nV/√Hz
nV/√Hz
pA/√Hz
dB
dB
Rev. G | Page 4 of 20

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AD8618 전자부품, 판매, 대치품
Data Sheet
100
VS = ±2.5V
80 TA = 25°C
60 Øm = 63°
40
20
0
–20
–40
–60
–80
–100
1M
10M
FREQUENCY (Hz)
225
180
135
90
45
0
–45
–90
–135
–180
–225
60M
Figure 12. Open-Loop Gain and Phase vs. Frequency
5.0
4.5 VS = 5.0V
VIN = 4.9V p-p
4.0 TA = 25°C
RL = 2k
3.5 AV = 1
3.0
2.5
2.0
1.5
1.0
0.5
0
1k 10k 100k 1M 10M
FREQUENCY (Hz)
Figure 13. Closed-Loop Output Voltage Swing vs. Frequency
100
VS = ±2.5V
90
80
70
60
50
40
30
AV = 100
AV = 1
20
AV = 10
10
0
1k 10k 100k 1M 10M
FREQUENCY (Hz)
Figure 14. Output Impedance vs. Frequency
100M
AD8615/AD8616/AD8618
120
VS = ±2.5V
100
80
60
40
20
0
1k 10k 100k 1M 10M
FREQUENCY (Hz)
Figure 15. CMRR vs. Frequency
120
VS = ±2.5V
100
80
60
40
20
0
1k 10k 100k 1M 10M
FREQUENCY (Hz)
Figure 16. PSRR vs. Frequency
50
45
VS = 5V
RL =
TA = 25°C
40 AV = 1
35
30
25
20
15
–OS
10
+OS
5
0
10 100 1000
CAPACITANCE (pF)
Figure 17. Small-Signal Overshoot vs. Load Capacitance
Rev. G | Page 7 of 20

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