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부품번호 | AD8609 기능 |
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기능 | Rail-to-Rail Input/Output Operational Amplifiers | ||
제조업체 | Analog Devices | ||
로고 | |||
전체 16 페이지수
Precision Micropower, Low Noise CMOS,
Rail-to-Rail Input/Output Operational Amplifiers
AD8603/AD8607/AD8609
FEATURES
Low offset voltage: 50 μV maximum
Low input bias current: 1 pA maximum
Single-supply operation: 1.8 V to 5 V
Low noise: 22 nV/√Hz
Micropower: 50 μA maximum
Low distortion
No phase reversal
Unity gain stable
APPLICATIONS
Battery-powered instrumentation
Multipole filters
Sensors
Low power ASIC input or output amplifiers
GENERAL DESCRIPTION
The AD8603/AD8607/AD8609 are single/dual/quad micro-
power rail-to-rail input and output amplifiers, respectively, that
feature very low offset voltage as well as low input voltage and
current noise.
These amplifiers use a patented trimming technique that achieves
superior precision without laser trimming. The parts are fully
specified to operate from 1.8 V to 5.0 V single supply or from
±0.9 V to ±2.5 V dual supply. The combination of low offsets, low
noise, very low input bias currents, and low power consumption
makes the AD8603/AD8607/AD8609 especially useful in portable
and loop-powered instrumentation.
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 low power, single-supply
systems.
The AD8603 is available in a tiny 5-lead TSOT package. The
AD8607 is available in 8-lead MSOP and 8-lead SOIC packages.
The AD8609 is available in 14-lead TSSOP and 14-lead SOIC
packages.
PIN CONFIGURATIONS
OUT 1 AD8603 5 V+
V– 2 TOP VIEW
(Not to Scale)
+IN 3
4 –IN
Figure 1. 5-Lead TSOT (UJ Suffix)
OUT A 1
–IN A 2
+IN A 3
V– 4
AD8607
TOP VIEW
(Not to Scale)
8 V+
7 OUT B
6 –IN B
5 +IN B
Figure 2. 8-Lead MSOP (RM Suffix)
OUT A 1
–IN A 2
AD8607
8 V+
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 Suffix)
OUT A 1
–IN A 2
+IN A 3
V+ 4
+IN B 5
–IN B 6
OUT B 7
14 OUT D
AD8609
TOP VIEW
(Not to Scale)
13 –IN D
12 +IN D
11 V–
10 +IN C
9 –IN C
8 OUT C
Figure 4. 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
AD8609
TOP VIEW
(Not to Scale)
14 OUT D
13 –IN D
12 +IN D
11 V–
10 +IN C
9 –IN C
8 OUT C
Figure 5. 14-Lead SOIC (R Suffix)
Rev. C
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 ©2003–2008 Analog Devices, Inc. All rights reserved.
AD8603/AD8607/AD8609
VS = 1.8 V, VCM = VS/2, TA = 25°C, unless otherwise noted.
Table 2.
Parameter
INPUT CHARACTERISTICS
Offset Voltage
Offset Voltage Drift
Input Bias Current
Input Offset Current
Input Voltage Range
Common-Mode Rejection Ratio
Large Signal Voltage Gain
AD8603
AD8607/AD8609
Input Capacitance
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 0.1%
Gain Bandwidth Product
Phase Margin
NOISE PERFORMANCE
Peak-to-Peak Noise
Voltage Noise Density
Current Noise Density
Channel Separation
Symbol Conditions
VOS
∆VOS/∆T
IB
IOS
IVR
CMRR
AVO
VS = 3.3 V @ VCM = 0.5 V and 2.8 V
−0.3 V < VCM < +1.8 V
−40°C < TA < +85°C, −0.3 V < VCM < +1.8 V
−40°C < TA < +125°C, −0.3 V < VCM < +1.7 V
−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
0 V < VCM < 1.8 V
−40°C < TA < +85°C
RL = 10 kΩ, 0.5 V < VO < 4.5 V
CDIFF
CCM
VOH
VOL
ISC
ZOUT
PSRR
ISY
SR
tS
GBP
ØO
en p-p
en
in
CS
IL = 1 mA
−40°C to +125°C
IL = 1 mA
−40°C to +125°C
f = 10 kHz, AV = 1
1.8 V < VS < 5 V
VO = 0 V
−40°C < TA < +85°C
RL = 10 kΩ
G = ±1, 1 V step
RL = 100 kΩ
RL = 10 kΩ
RL = 10 kΩ, RL = 100 kΩ
0.1 Hz to 10 Hz
f = 1 kHz
f = 10 kHz
f = 1 kHz
f = 10 kHz
f = 100 kHz
Min Typ Max Unit
12
40
1
0.2
0.1
−0.3
80 98
70
50 μV
300 μV
500 μV
700 μV
4.5 μV/°C
1 pA
50 pA
500 pA
0.5 pA
50 pA
250 pA
+1.8 V
dB
dB
150 3000
100 2000
2.1
3.8
V/mV
V/mV
pF
pF
1.65 1.72
1.6
38 60
80
±10
36
V
V
mV
mV
mA
Ω
80 100
dB
40 50 μA
60 μA
0.1 V/μs
9.2 μs
385 kHz
316 kHz
70 Degrees
2.3
25
22
0.05
−115
−110
3.5
μV
nV/√Hz
nV/√Hz
pA/√Hz
dB
dB
Rev. C | Page 4 of 16
4페이지 350
VS = 5V
TA = 25°C
300
250 VDD – VOH @ 10mA LOAD
200
VOL @ 10mA LOAD
150
100
50
0
–40 –25 –10
VDD – VOH @ 1mA LOAD
VOL @ 1mA LOAD
5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
Figure 12. Output Voltage Swing vs. Temperature
100 225
80
VS = ±2.5V
RL = 100kΩ
180
60
CL = 20pF
Φ = 70.9°
135
40 90
20 45
00
–20 –45
–40 –90
–60 –135
–80 –180
–100
1k
10k 100k 1M
FREQUENCY (Hz)
–225
10M
Figure 13. Open-Loop Gain and Phase vs. Frequency
5.0
4.5
VS = 5V
VIN = 4.9V p-p
4.0
TA = 25°C
AV = 1
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
0.01
0.1
1
FREQUENCY (kHz)
10
100
Figure 14. Closed-Loop Output Voltage Swing vs. Frequency
AD8603/AD8607/AD8609
1750
VS = ±2.5V, ±0.9V
1575
1400
1225
1050
875
700
AV = 100
AV = 10
AV = 1
525
350
175
0
100 1k 10k 100k
FREQUENCY (Hz)
Figure 15. Output Impedance vs. Frequency
140
120
100
80
60
40
20
0
–20
–40
–60
100
VS = ±2.5V
1k 10k
FREQUENCY (Hz)
Figure 16. CMRR vs. Frequency
100k
140
120
100
80
60
40
20
0
–20
–40
–60
10
VS = ±2.5V
100 1k
FREQUENCY (Hz)
10k
Figure 17. PSRR vs. Frequency
100k
Rev. C | Page 7 of 16
7페이지 | |||
구 성 | 총 16 페이지수 | ||
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DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |