AD8502ARJZ-R2 [ADI]
1 レA Micropower CMOS Operational Amplifiers; 1レ微功耗CMOS运算放大器
| 型号： | AD8502ARJZ-R2 |
| 厂家： | 
ADI |
| 描述： | 1 レA Micropower CMOS Operational Amplifiers |
| 文件： | 总16页 (文件大小：704K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
1 μA Micropower CMOS
Operational Amplifiers
AD8502/AD8504
PIN CONFIGURATIONS
FEATURES
Supply current: 1 μA maximum/amplifier
Offset voltage: 3 mV maximum
Single-supply or dual-supply operation
Rail-to-rail input and output
No phase reversal
OUT A
–IN A
+IN A
V–
1
2
3
4
8
7
6
5
V+
AD8502
OUT B
–IN B
+IN B
TOP VIEW
(Not to Scale)
Unity gain stable
Figure 1. 8-Lead SOT-23
1
OUT A
–IN A
+IN A
V+
14
13
12
11
10
9
OUT D
–IN D
+IN D
V–
APPLICATIONS
2
Portable equipment
Remote sensors
Low power filters
Threshold detectors
Current sensing
3
4
5
6
7
AD8504
TOP VIEW
(Not to Scale)
+IN B
–IN B
OUT B
+IN C
–IN C
OUT C
8
Figure 2. 14-Lead TSSOP (RU-14)
GENERAL DESCRIPTION
The ability to swing rail-to-rail at both the input and output
helps maximize dynamic range and signal-to-noise ratio in
systems that operate at very low voltages. The low offset voltage
allows use of the AD8502/AD8504 in systems with high gain
without creating excessively large output offset errors. The
AD8502 and AD8504 offer an additional benefit by providing
high accuracy without the need for system calibration.
The AD8502/AD8504 are low power, precision CMOS operational
amplifiers featuring a maximum supply current of 1 μA. The
AD8502/AD8504 have a maximum offset voltage of 3 mV and a
typical input bias current of 1 pA operating rail-to-rail on both
the input and output. The AD8502/AD8504 can operate from a
single-supply voltage of +1.8 V to +5.5 V or a dual-supply
voltage of 0.ꢀ V to 2.ꢁ5 V.
The AD8502/AD8504 are fully specified over the industrial
temperature range (−40°C to +85°C) and the extended indus-
trial temperature range (−40°C to +125°C). The AD8502 is
available in an 8-lead, SOT-23 surface-mount package. The
AD8504 is available in a 14-lead TSSOP surface-mount package.
With its low power consumption, low input bias current, and
rail-to-rail input and output, the AD8502/AD8504 are ideally
suited for a variety of battery-powered portable applications.
Potential applications include bedside monitors, pulse monitors,
glucose meters, smoke and fire detectors, vibration monitors,
and backup battery sensors.
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 registeredtrademarks arethe property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
www.analog.com
©2007 Analog Devices, Inc. All rights reserved.
AD8502/AD8504
TABLE OF CONTENTS
Features .............................................................................................. 1
Absolute Maximum Ratings ............................................................6
Thermal Resistance.......................................................................6
ESD Caution...................................................................................6
Typical Performance Characteristics ..............................................ꢁ
Outline Dimensions....................................................................... 14
Ordering Guide .......................................................................... 14
Applications....................................................................................... 1
Pin Configurations ........................................................................... 1
General Description......................................................................... 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
Electrical Characteristics............................................................. 3
REVISION HISTORY
1/07—Revision 0: Initial Version
Rev. 0 | Page 2 of 16
AD8502/AD8504
SPECIFICATIONS
ELECTRICAL CHARACTERISTICS
@ VS = 5 V, VCM = VS/2, TA = 25°C, unless otherwise noted.
Table 1.
Parameter
Symbol
Conditions
Min
Typ
Max Unit
INPUT CHARACTERISTICS
Offset Voltage
VOS
0 V < VCM < 5 V
0.5
3
5
5.5
mV
mV
mV
μV/°C
μV/°C
pA
pA
pA
pA
pA
pA
V
−40°C < TA < +85°C
−40°C < TA < +125°C
−40°C < TA < +85°C
−40°C < TA < +125°C
0 V < VCM < 5 V
−40°C < TA < +85°C
−40°C < TA < +125°C
0 V < VCM < 5 V
Offset Voltage Drift
Input Bias Current
ΔVOS/ΔT
IB
7
5
1
10
100
600
5
50
100
5.0
Input Offset Current
IOS
0.5
−40°C < TA < +85°C
−40°C < TA < +125°C
Input Voltage Range
IVR
0
Common-Mode Rejection Ratio
CMRR
0 V < VCM < 5 V
−40°C < TA < +85°C
−40°C to +125°C
0.1 V < VOUT < 4.9 V; RLOAD = 1 MΩ
0.1 V < VOUT < 4.9 V; −40°C < TA < +85°C
0.1 V < VOUT < 4.9 V; −40°C < TA < +125°C
67
65
65
98
93
75
76
dB
dB
dB
dB
dB
dB
pF
pF
Large Signal Voltage Gain
Input Capacitance
AVO
120
CDIFF
CCM
2
4.5
OUTPUT CHARACTERISTICS
Output Voltage High
VOH
RLOAD = 100 kΩ to GND
−40°C < TA < +85°C
−40°C to +125°C
RLOAD = 10 kΩ to GND
−40°C < TA < +85°C
−40°C to +125°C
RLOAD = 100 kΩ to VS
−40°C < TA < +85°C
−40°C to +125°C
RLOAD = 10 kΩ to VS
−40°C < TA < +85°C
−40°C to +125°C
VOUT = GND
4.970 4.990
4.960
4.950
4.900 4.930
4.810
4.650
V
V
V
V
V
V
mV
mV
mV
mV
mV
mV
mA
Output Voltage Low
VOL
1.6
5
7
7
20
37
40
15
5
Short-Circuit Current
POWER SUPPLY
ISC
Power Supply Rejection Ratio
PSRR
1.8 V < VS < 5 V
85
66
66
105
dB
dB
dB
μA
μA
μA
−40°C < TA < +85°C
−40°C < TA < +125°C
VO = VS/2
−40°C < TA < +85°C
−40°C < TA < +125°C
Supply Current/Amplifier
ISY
0.75
1
1.5
2
DYNAMIC PERFORMANCE
Slew Rate
Gain Bandwidth Product
Phase Margin
SR
GBP
ØO
RLOAD = 1 MΩ
0.004
7
60
V/μs
kHz
Degrees
Rev. 0 | Page 3 of 16
AD8502/AD8504
Parameter
Symbol
Conditions
Min
Typ
Max Unit
μV p-p
NOISE PERFORMANCE
Peak-to-Peak Noise
Voltage Noise Density
Current Noise Density
0.1 Hz to 10 Hz
f = 1 kHz
f = 1 kHz
6
190
0.1
en
in
nV/√Hz
pA/√Hz
@ VS = 1.8 V, VCM = VS/2, TA = 25°C, unless otherwise noted.
Table 2.
Parameter
Symbol
Conditions
Min
Typ
Max Unit
INPUT CHARACTERISTICS
Offset Voltage
VOS
0 V < VCM < 1.8 V
0.5
3
5
5.5
mV
mV
mV
μV/°C
μV/°C
pA
pA
pA
pA
pA
pA
V
−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
−40°C < TA < +125°C
0 V < VCM < 1.8 V
Offset Voltage Drift
Input Bias Current
∆VOS/∆T
IB
7
5
1
10
100
600
5
50
100
1.8
Input Offset Current
IOS
0.5
−40°C < TA < +85°C
−40°C < TA < +125°C
Input Voltage Range
IVR
0
Common-Mode Rejection Ratio
CMRR
0 V < VCM < 1.8 V
−40°C < TA < +85°C
−40°C < TA < +125°C
0.1 V < VOUT < 1.7 V; RLOAD = 1 MΩ
0.1 V < VOUT < 1.7 V; −40°C < TA < +85°C
0.1 V < VOUT < 1.7 V; −40°C < TA < +125°C
59
56
55
88
80
65
75
dB
dB
dB
dB
dB
dB
pF
pF
Large Signal Voltage Gain
Input Capacitance
AVO
110
CDIFF
CCM
2
4.5
OUTPUT CHARACTERISTICS
Output Voltage High
VOH
RLOAD = 100 kΩ to GND
−40°C < TA < +85°C
−40°C to +125°C
1.79
1.78
1.77
1.75
1.795
1.764
V
V
V
V
RLOAD = 10 kΩ to GND
−40°C < TA < +85°C
−40°C to +125°C
1.70
1.65
V
V
Output Voltage Low
VOL
RLOAD = 100 kΩ to VS
−40°C < TA < +85°C
−40°C to +125°C
RLOAD = 10 kΩ to VS
−40°C < TA < +85°C
−40°C to +125°C
1.0
10
5
6
mV
mV
mV
mV
mV
mV
mA
7
20
28
29
Short-Circuit Current
POWER SUPPLY
ISC
5
Power Supply Rejection Ratio
PSRR
1.8 V < VS < 5 V
85
66
66
105
dB
dB
dB
μA
μA
μA
−40°C < TA < +85°C
−40°C < TA < +125°C
VO = VS/2
−40°C < TA < +85°C
−40°C < TA < +125°C
Supply Current/Amplifier
ISY
0.65
1
1.5
2
Rev. 0 | Page 4 of 16
AD8502/AD8504
Parameter
Symbol
Conditions
Min
Typ
Max Unit
DYNAMIC PERFORMANCE
Slew Rate
Gain Bandwidth Product
Phase Margin
SR
GBP
ØO
RLOAD = 1 MΩ
0.004
7
60
V/μs
kHz
Degrees
NOISE PERFORMANCE
Peak-to-Peak Noise
Voltage Noise Density
Current Noise Density
0.1 Hz to 10 Hz
f = 1 kHz
f = 1 kHz
6
190
0.1
μV p-p
nV/√Hz
pA/√Hz
en
in
Rev. 0 | Page 5 of 16
AD8502/AD8504
ABSOLUTE MAXIMUM RATINGS
TA = 25°C, unless otherwise noted.
Table 3.
THERMAL RESISTANCE
θJA is specified for the worst-case conditions, that is, a device
soldered in a circuit board for surface-mount packages.
Parameter
Rating
Supply Voltage
Input Voltage
Differential Input Voltage
Output Short-Circuit Duration to GND Indefinite
Storage Temperature Range
6 V
Table 4. Thermal Characteristics
Package Type
8-Lead SOT-23 (RJ-8)
14-Lead TSSOP (RU-14)
VSS − 0.3 V to VDD + 0.3 V
6 V
θJA
θJC
126
35
Unit
°C/W
°C/W
376
180
−65°C to +150°C
Operating Temperature Range
Junction Temperature Range
Lead Temperature (Soldering, 60 sec)
−40°C to +125°C
−65°C to +150°C
300°C
ESD CAUTION
Stresses above those listed under Absolute Maximum Ratings
may cause permanent damage to the device. This is a stress
rating only; functional operation of the device at these or any
other conditions above those indicated in the operational
section of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect
device reliability.
Absolute maximum ratings apply at 25°C, unless otherwise noted.
Rev. 0 | Page 6 of 16
AD8502/AD8504
TYPICAL PERFORMANCE CHARACTERISTICS
1000
100
10
160
140
120
100
80
1
60
0.1
0.01
40
20
0
0.001
–2400 –1800 –1200 –600
0
600
1200
1800
2400
–40
–20
0
20
40
60
80
100
120
V
(µV)
TEMPERATURE (°C)
OS
Figure 6. Input Bias Current vs. Temperature (VS = 1.8 V and 5.0 V)
Figure 3. Input Offset Voltage Distribution (0 V < VC < 5.0 V), VS = 5 V
200
1000
I
(+125°C)
(+85°C)
B
100
10
150
100
I
B
1
I
(+25°C)
(–40°C)
B
0.1
0.01
50
0
I
B
0.001
0
0.5
1.0
1.5
2.0
2.5
(V)
3.0
3.5
4.0
4.5
5.0
1
3
5
7
9
11 13 15 17 19 21 23 25
TCV (µV/°C)
OS
V
CM
Figure 4. Input Offset Voltage Temperature Drift Distribution
(−40°C < TA < +85°C), VS = 5 V
Figure 7. Input Bias Current vs. Common-Mode Voltage, VS = 5 V
70
1000
800
60
50
40
600
400
200
0
30
–200
–400
–600
–800
–1000
20
10
0
0.5
0.6
0.7
0.8
(µA)
0.9
1.0
0
1
2
3
4
5
I
V
(V)
SY
CM
Figure 5. Input Offset Voltage vs. Common-Mode Voltage, VS = 5 V
Figure 8. Supply Current Distribution, VS = 5 V
Rev. 0 | Page 7 of 16
AD8502/AD8504
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
1000
100
SOURCE
10
SINK
1
0.1
0.01
0.001
0
1
2
3
4
5
6
0.01
0.1
1
V
(V)
LOAD CURRENT (mA)
S
Figure 12. Output Saturation Voltage vs. Load Current, VS = 5 V
Figure 9. Supply Current vs. Input Common-Mode Voltage
1.2
100
V
@ 10kΩ LOAD
@ 10kΩ LOAD
OH
1.0
0.8
0.6
0.4
0.2
0
I
@ 5.0V
@ 1.8V
10
SY
V
OL
V
@ 100kΩ LOAD
OH
I
SY
V
@ 100kΩ LOAD
OL
1
0.1
–40
–40 –25 –10
5
20
35
50
65
80
95 110 125
–15
10
35
60
85
TEMPERATURE (°C)
TEMPERATURE (°C)
Figure 10. Supply Current vs. Temperature
Figure 13. Output Saturation Voltage vs. Temperature, VS = 5 V
900
850
800
750
700
650
600
120
90
80
60
60
40
30
20
0
0
–30
–60
–90
–120
–20
–40
–60
–80
0
0.5
1.0
1.5
2.0
2.5
(V)
3.0
3.5
4.0
4.5
5.0
10
100
1k
10k
100k
V
FREQUENCY (Hz)
CM
Figure 11. Supply Current vs. Input Common-Mode Voltage, VS = 5 V
Figure 14. Open-Loop Gain and Phase vs. Frequency, VS = 5 V
Rev. 0 | Page 8 of 16
AD8502/AD8504
120
110
100
90
80
70
60
50
40
30
20
10
0
0.20
0.15
0.10
0.05
0
–0.05
–0.10
–0.15
–0.20
0.01
0.1
FREQUENCY (kHz)
1
10
–0.5
0
0.5
1.0
1.5
TIME (ms)
Figure 15. CMRR vs. Frequency, VS = 5 V
Figure 18. Small Signal Transient Response (No Load), VS = 5 V
100
90
80
70
60
50
40
30
20
10
0
0.20
0.15
0.10
0.05
0
–0.05
–0.10
–0.15
–0.20
0.01
0.1
FREQUENCY (kHz)
1
10
–0.5
0
0.5
1.0
1.5
TIME (ms)
Figure 16. PSRR vs. Frequency, VS = 5 V
Figure 19. Small Signal Transient Response
(100 pF Load Capacitance, VS = 5 V)
6
35
30
25
20
15
10
5
5
4
3
2
1
0
OS+
OS–
0
10
–2
–1
0
1
2
3
4
5
6
7
8
100
1000
TIME (ms)
LOAD CAPACITANCE (pF)
Figure 20. Large Signal Transient Response No Load), VS = 5 V
Figure 17. Small Signal Overshoot vs. Load Capacitance, VS = 5 V
Rev. 0 | Page 9 of 16
AD8502/AD8504
1000
100
10
V
S
V
OUT
GAIN = +1
V
= V
IN
S/2
1
10
100
FREQUENCY (Hz)
1k
TIME (s)
Figure 24. Input Voltage Noise (VS = 5 V and 1.8 V)
Figure 21. Turn-On Transient Response, VS = 5 V
4
3
160
140
120
100
80
V
V
OUT
IN
2
1
0
–1
–2
–3
–4
60
40
20
0
–0.005 –0.003 –0.001 0.001
0.003 0.005 0.007 0.009
–2400 –1800 –1200 –600
0
600
1200
1800
2400
TIME (s)
V
(µV)
OS
Figure 22. No Phase Reversal, VS = 5 V
Figure 25. Input Offset Voltage Distribution (0 V < VCM < 1.8 V), VS = 1.8 V
4
3
200
150
100
50
2
1
0
–1
–2
–3
–4
0
–5
–4
–3
–2
–1
0
1
2
3
4
5
1
3
5
7
9
11 13 15 17 19 21 23 25
TCV (µV/°C)
OS
TIME (s)
Figure 23. 0.1 Hz to 10 Hz Input Voltage Noise (VS = 5 V and 1.8 V)
Figure 26. Input Offset Voltage Temperature Drift Distribution
(−40°C < TA < +85°C), VS = 1.8 V
Rev. 0 | Page 10 of 16
AD8502/AD8504
1000
800
700
650
600
600
400
200
0
–200
–400
–600
–800
–1000
550
500
0
0.3
0.6
0.9
(V)
1.2
1.5
1.8
0
0.3
0.6
0.9
(V)
1.2
1.5
1.8
V
V
CM
CM
Figure 27. Input Offset Voltage vs. Input Common-Mode Voltage, VS = 1.8 V
Figure 30. Supply Current vs. Input Common-Mode Voltage, VS = 1.8 V
1000
1000
I
(+125°C)
B
100
10
100
SOURCE
I
(+85°C)
B
10
1
I
(+25°C)
B
SINK
1
0.1
0.1
0.01
0.001
I
(–40°C)
1.5
B
0.01
0.001
0
0.3
0.6
0.9
(V)
1.2
1.8
0.01
0.1
1
V
LOAD CURRENT (mA)
CM
Figure 28. Input Bias Current vs. Input Common-Mode Voltage, VS = 1.8 V
Figure 31. Output Saturation Voltage vs. Load Current VS = 1.8 V
70
60
50
40
30
20
10
0
100
V
@ 10kΩ LOAD
OH
10
V
@ 10kΩ LOAD
@ 100kΩ LOAD
OL
V
OH
1
V
@ 100kΩ LOAD
OL
0.1
–40
0.4
0.5
0.6
0.7
0.8
0.9
–15
10
35
60
85
I
(µA)
TEMPERATURE (°C)
SY
Figure 32. Output Saturation Voltage vs. Temperature, VS = 1.8 V
Figure 29. Supply Current Distribution, VS = 1.8 V
Rev. 0 | Page 11 of 16
AD8502/AD8504
35
30
25
20
15
10
5
120
90
80
60
OS–
60
40
30
20
0
OS+
0
–30
–60
–90
–120
–20
–40
–60
–80
0
10
10
100
1k
10k
100k
100
LOAD CAPACITANCE (pF)
1000
FREQUENCY (Hz)
Figure 33. Open-Loop Gain and Phase vs. Frequency, VS = 1.8 V
Figure 35. Small Signal Overshoot vs. Load Capacitance, VS = 1.8 V
100
90
80
70
60
50
40
30
20
10
0
0.20
0.15
0.10
0.05
0
–0.05
–0.10
–0.15
–0.20
0.01
0.1
FREQUENCY (kHz)
1
10
–0.5
0
0.5
1.0
1.5
TIME (ms)
Figure 36. Small Signal Transient Response (No Load), VS = 1.8 V
Figure 34. CMRR vs. Frequency, VS = 1.8 V
Rev. 0 | Page 12 of 16
AD8502/AD8504
0.20
0.15
0.10
0.05
0
0
–10
1MΩ
1V p-p
10kΩ
–20
–
+
–
+
–30
10kΩ
10kΩ
V
IN
–40
A
B, C, AND D
–50
–60
–70
–0.05
–0.10
–0.15
–0.20
–80
–90
OUT C
OUT D
–100
–110
–120
OUT B
–0.5
0
0.5
1.0
1.5
60 100
200
500
1k
2k
5k
10k
20k
TIME (ms)
FREQUENCY (Hz)
Figure 37. Small Signal Transient Response (100 pF Load Capacitance),
VS = 1.8 V
Figure 39. Channel Separation
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
–2
–1
0
1
2
3
4
5
6
7
8
TIME (ms)
Figure 38. Large Signal Transient Response (No Load), VS = 1.8 V
Rev. 0 | Page 13 of 16
AD8502/AD8504
OUTLINE DIMENSIONS
5.10
5.00
4.90
2.90 BSC
8
7
2
6
3
5
14
8
7
1.60 BSC
2.80 BSC
4.50
4.40
4.30
1
4
6.40
BSC
PIN 1
INDICATOR
0.65 BSC
1
1.95
BSC
1.30
1.15
0.90
PIN 1
0.65
BSC
1.05
1.00
0.80
1.45 MAX
0.22
0.08
0.20
0.09
1.20
MAX
0.75
0.60
0.45
0.60
0.45
0.30
8°
0°
8°
4°
0°
0.15
0.05
0.38
0.22
0.30
0.19
0.15 MAX
SEATING
PLANE
SEATING
PLANE
COPLANARITY
0.10
COMPLIANT TO JEDEC STANDARDS MO-153-AB-1
COMPLIANT TO JEDEC STANDARDS MO-178-BA
Figure 41. 14-Lead Thin Shrink Small Outline Package [TSSOP]
(RU-14)
Figure 40. 8-Lead Small Outline Transistor Package [SOT-23]
(RJ-8)
Dimensions shown in millimeters
Dimensions shown in millimeters
ORDERING GUIDE
Model
Temperature Range
−40°C to +125°C
−40°C to +125°C
−40°C to +125°C
−40°C to +125°C
−40°C to +125°C
Package Description
8-Lead SOT-23
8-Lead SOT-23
8-Lead SOT-23
14-Lead TSSOP
14-Lead TSSOP
Package Option
Branding
A1D
A1D
AD8502ARJZ-R21
AD8502ARJZ-REEL1
AD8502ARJZ-REEL71
AD8504ARUZ1
RJ-8
RJ-8
RJ-8
RU-14
RU-14
A1D
AD8504ARUZ-REEL1
1 Z = Pb-free part.
Rev. 0 | Page 14 of 16
AD8502/AD8504
NOTES
Rev. 0 | Page 15 of 16
AD8502/AD8504
NOTES
©2007 Analog Devices, Inc. All rights reserved. Trademarks and
registered trademarks are the property of their respective owners.
D06323-0-1/07(0)
Rev. 0 | Page 16 of 16
相关型号：
AD8505ARJZ-R7
OP-AMP, 3500 uV OFFSET-MAX, 0.095 MHz BAND WIDTH, PDSO5, ROHS COMPLIANT, MO-178AA, SOT-23, 5 PIN
ROCHESTER
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