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AD8659 데이터시트 PDF




Analog Devices에서 제조한 전자 부품 AD8659은 전자 산업 및 응용 분야에서
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부품번호 AD8659 기능
기능 (AD8657 / AD8659) Operational Amplifiers
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AD8659 데이터시트, 핀배열, 회로
Data Sheet
FEATURES
Micropower at high voltage (18 V): 22 μA maximum
Low offset voltage: 350 µV maximum
Low input bias current: 20 pA maximum
Gain bandwidth product: 230 kHz at AV = 100 typical
Unity-gain crossover: 230 kHz
−3 dB closed-loop bandwidth: 305 kHz
Single-supply operation: 2.7 V to 18 V
Dual-supply operation: ±1.35 V to ±9 V
Unity-gain stable
Excellent electromagnetic interference immunity
APPLICATIONS
Portable operating systems
Current monitors
4 mA to 20 mA loop drivers
Buffer/level shifting
Multipole filters
Remote/wireless sensors
Low power transimpedance amplifiers
GENERAL DESCRIPTION
The AD8657/AD8659 are dual and quad micropower, precision,
rail-to-rail input/output amplifiers optimized for low power and
wide operating supply voltage range applications.
The AD8657/AD8659 operate from 2.7 V to 18 V with a typical
quiescent supply current of 18 μA. The devices use the Analog
Devices, Inc., patented DigiTrim® trimming technique, which
achieves low offset voltage. The AD8657/AD8659 also have
high immunity to electromagnetic interference.
The combination of low supply current, low offset voltage, very
low input bias current, wide supply range, and rail-to-rail input
and output make the AD8657/AD8659 ideal for current
monitoring in process and motor control applications. The
combination of precision specifications makes these devices
ideal for dc gain and buffering of sensor front ends or high
impedance input sources in wireless or remote sensors or
transmitters.
The AD8657/AD8659 are specified over the extended industrial
temperature range (−40°C to +125°C). The AD8657 is available in
an 8-lead MSOP package and an 8-lead LFCSP package; the
AD8659 is available in a 14-lead SOIC package and 16-lead
LFCSP package.
Rev. B
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.
22 µA, RRIO, CMOS,18 V
Operational Amplifiers
AD8657/AD8659
PIN CONNECTION DIAGRAMS
OUT A 1
–IN A 2
+IN A 3
V– 4
AD8657
TOP VIEW
(Not to Scale)
8 V+
7 OUT B
6 –IN B
5 +IN B
Figure 1. AD8657 Pin Configuration, 8-Lead MSOP
OUT A 1
–IN A 2
+IN A 3
V– 4
AD8657
TOP VIEW
(Not to Scale)
8 V+
7 OUT B
6 –IN B
5 +IN B
NOTES
1. CONNECT THE EXPOSED PAD TO V– OR
LEAVE IT UNCONNECTED.
Figure 2. AD8657 Pin Configuration, 8-Lead LFCSP
Note: For AD8659 pin connections and for more information
about the pin connections for these products, see the Pin
Configurations and Function Descriptions section.
60
50
VSY = 2.7V
VSY = 18V
40
30
20
10
0
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
Figure 3. AD8657, Supply Current vs. Temperature
Table 1. Precision Micropower Op Amps (<250 µA)
Supply Voltage 5 V
12 V to 16 V 36 V
Single
AD8538
OP196
AD8603
ADA4051-1
Dual
AD8539
AD8657
AD8622
AD8607
ADA4091-2
ADA4051-2
ADA4096-2
Quad
AD8609
AD8659
AD8624
ADA4091-4
ADA4096-4
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 ©2011–2012 Analog Devices, Inc. All rights reserved.
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AD8659 pdf, 반도체, 판매, 대치품
AD8657/AD8659
Data Sheet
ELECTRICAL CHARACTERISTICS—10 V OPERATION
VSY = 10 V, VCM = VSY/2 V, TA = 25°C, unless otherwise specified.
Table 3.
Parameter
INPUT CHARACTERISTICS
Offset Voltage
Input Bias Current
Input Offset Current
Input Voltage Range
Common-Mode Rejection Ratio
Large Signal Voltage Gain
Offset Voltage Drift
Input Resistance
Input Capacitance, Differential Mode
Input Capacitance, Common Mode
OUTPUT CHARACTERISTICS
Output Voltage High
Output Voltage Low
Short-Circuit Current
Closed-Loop Output Impedance
POWER SUPPLY
Power Supply Rejection Ratio
Supply Current per Amplifier
DYNAMIC PERFORMANCE
Slew Rate
Settling Time to 0.1%
Unity-Gain Crossover
Phase Margin
Gain Bandwidth Product
−3 dB Closed-Loop Bandwidth
Channel Separation
EMI Rejection Ratio of +IN x
NOISE PERFORMANCE
Voltage Noise
Voltage Noise Density
Current Noise Density
Symbol Test Conditions/Comments
VOS VCM = 0 V to 10 V
VCM = 0.3 V to 9.7 V, −40°C ≤ TA ≤ +85°C
VCM = 0.3 V to 9.7 V, −40°C ≤ TA ≤ +125°C
VCM = 0 V to 10 V, −40°C ≤ TA ≤ +125°C
IB
−40°C ≤ TA ≤ +125°C
IOS
−40°C ≤ TA ≤ +125°C
CMRR
AVO
ΔVOS/ΔT
RIN
CINDM
CINCM
VCM = 0 V to 10 V
VCM = 0.3 V to 9.7 V, −40°C ≤ TA ≤ +85°C
VCM = 0.3 V to 9.7 V, −40°C ≤ TA ≤ +125°C
VCM = 0 V to 10 V, −40°C ≤ TA ≤ +125°C
RL = 100 kΩ, VO = 0.5 V to 9.5 V
−40°C ≤ TA ≤ +125°C
VOH RL = 100 kΩ to VCM, −40°C ≤ TA ≤ +125°C
VOL RL = 100 kΩ to VCM, −40°C ≤ TA ≤ +125°C
ISC
ZOUT f = 1 kHz, AV = 1
PSRR
ISY
VSY = 2.7 V to 18 V
−40°C ≤ TA ≤ +125°C
IO = 0 mA
−40°C ≤ TA ≤ +125°C
SR
ts
UGC
ΦM
GBP
f−3 dB
CS
EMIRR
RL = 1 MΩ, CL = 10 pF, AV = 1
VIN = 1 V step, RL = 100 kΩ, CL = 10 pF
VIN = 10 mV p-p, RL = 1 MΩ, CL = 10 pF, AV = 1
VIN = 10 mV p-p, RL = 1 MΩ, CL = 10 pF, AV = 1
VIN = 10 mV p-p, RL = 1 MΩ, CL = 10 pF, AV = 100
VIN = 10 mV p-p, RL = 1 MΩ, CL = 10 pF, AV = 1
f = 10 kHz, RL = 1 MΩ
VIN = 100 mVPEAK; f = 400 MHz, 900 MHz,
1800 MHz, 2400 MHz
en p-p
en
in
f = 0.1 Hz to 10 Hz
f = 1 kHz
f = 10 kHz
f = 1 kHz
Min Typ
2
0
88 105
76
75
59
108 120
100
2
10
11
3.5
9.98
±11
15
100 115
90
18
75
15
225
60
230
300
95
90
5
50
45
0.1
Max Unit
350 µV
1.6 mV
2 mV
16 mV
15 pA
2.6 nA
30 pA
5.2 nA
10 V
dB
dB
dB
dB
dB
dB
μV/°C
GΩ
pF
pF
V
20 mV
mA
Ω
dB
dB
22 µA
34 µA
V/ms
µs
kHz
Degrees
kHz
kHz
dB
dB
µV p-p
nV/√Hz
nV/√Hz
pA/√Hz
Rev. B | Page 4 of 24
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AD8659 전자부품, 판매, 대치품
Data Sheet
PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS
AD8657/AD8659
OUT A 1
–IN A 2
+IN A 3
V– 4
AD8657
TOP VIEW
(Not to Scale)
8 V+
7 OUT B
6 –IN B
5 +IN B
Figure 4. AD8657 Pin Configuration, 8-Lead MSOP
OUT A 1
–IN A 2
+IN A 3
V– 4
AD8657
TOP VIEW
(Not to Scale)
8 V+
7 OUT B
6 –IN B
5 +IN B
NOTES
1. CONNECT THE EXPOSED PAD TO V– OR
LEAVE IT UNCONNECTED.
Figure 5. AD8657 Pin Configuration, 8-Lead LFCSP
Table 7. Pin Function Descriptions, AD8657
Pin No.1
8-Lead MSOP 8-Lead LFCSP Mnemonic Description
1
1
OUT A
Output Channel A.
2
2
−IN A
Negative Input Channel A.
3
3
+IN A
Positive Input Channel A.
4 4 V− Negative Supply Voltage.
5
5
+IN B
Positive Input Channel B.
6
6
−IN B
Negative Input Channel B.
7
7
OUT B
Output Channel B.
8 8 V+ Positive Supply Voltage.
N/A EP2
EPAD
Exposed Pad. For the AD8657 (8-lead LFCSP only), connect the exposed pad to V− or leave
it unconnected.
1 N/A means not applicable.
2 The exposed pad is not shown in the pin configuration diagram.
Rev. B | Page 7 of 24
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