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AD8692 [ADI]

Low Cost, High Performance, CMOS Rail-to-Rail Output Operational Amplifier; 低成本，高性能， CMOS轨到轨输出运算放大器
AD8692
型号： AD8692
厂家： ADI    ADI
描述：

Low Cost, High Performance, CMOS Rail-to-Rail Output Operational Amplifier
低成本，高性能， CMOS轨到轨输出运算放大器

运算放大器
文件： 总12页 (文件大小：266K)
中文：  中文翻译
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Low Cost, High Performance, CMOS  
Rail-to-Rail Output Operational Amplifier  
AD8692  
FEATURES  
PIN CONFIGURATIONS  
Offset voltage: 400 µV typ  
Low offset voltage drift: 6 µV/°C maximum  
Very low input bias currents: 1 pA maximum  
Low noise: 8 nV/√Hz  
OUT A  
–IN A  
+IN A  
V–  
1
2
3
4
8
7
6
5
V+  
AD8692  
OUT B  
–IN B  
+IN B  
TOP VIEW  
(Not to Scale)  
Low distortion: 0.0006%  
Wide bandwidth: 10 MHz  
Figure 1. 8-Lead MSOP Pin Configuration  
Unity gain stable  
Single-supply operation: 2.7 V to 6 V  
OUT A  
–IN A  
+IN A  
V–  
1
2
3
4
8
7
6
5
V+  
AD8692  
OUT B  
–IN B  
+IN B  
APPLICATIONS  
TOP VIEW  
(Not to Scale)  
Photodiode amplification  
Battery-powered instrumentation  
Medical instruments  
Multipole filters  
Figure 2. 8-Lead SOIC Pin Configuration  
Sensors  
Portable audio devices  
GENERAL DESCRIPTION  
The AD8692 is a low cost, dual rail-to-rail output, single-supply  
amplifier featuring low offset voltage, low input voltage and  
current noise, and wide signal bandwidth. The combination of  
low offset, low noise, very low input bias currents, and high  
speed makes this amplifier useful in a wide variety of applica-  
tions. Filters, integrators, photodiode amplifiers, and high  
impedance sensors all benefit from the combination of  
performance features. Audio and other ac applications benefit  
from the wide bandwidth and low distortion.  
Applications for this amplifier include PA controls, laser diode  
control loops, portable and loop-powered instrumentation,  
audio amplification for portable devices, and ASIC input and  
output amplifiers.  
The AD8692 is specified over the extended industrial tempera-  
ture range of −40°C to +125°C. The AD8692 is available in the  
micro-SOIC and 8-lead narrow SOIC surface-mount packages.  
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  
Fax: 781.326.8703  
www.analog.com  
© 2004 Analog Devices, Inc. All rights reserved.  
AD8692  
TABLE OF CONTENTS  
Electrical Characteristics ................................................................. 3  
Typical Performance Characteristics ..............................................6  
Outline Dimensions....................................................................... 11  
Ordering Guide .......................................................................... 11  
Absolute Maximum Ratings............................................................ 5  
Thermal Characteristics .............................................................. 5  
ESD Caution.................................................................................. 5  
REVISION HISTORY  
10/04—Revision 0: Initial Version  
Rev. 0 | Page 2 of 12  
AD8692  
ELECTRICAL CHARACTERISTICS  
VS = 2.7 V, VCM = VS/2, TA = 25°C, unless otherwise noted.  
Table 1.  
Parameter  
Symbol  
Conditions  
Min  
Typ  
0.4  
Max Unit  
INPUT CHARACTERISTICS  
Offset Voltage  
VOS  
IB  
VCM = −0.3 V to +1.6 V  
VCM = −0.1 V to +1.6 V; −40°C < TA < +125°C  
2.0  
3.0  
1
mV  
mV  
pA  
Input Bias Current  
0.2  
−40°C < TA < +85°C  
−40°C < TA < +125°C  
50  
pA  
pA  
pA  
pA  
260  
0.5  
20  
Input Offset Current  
IOS  
0.1  
−40°C < TA < +85°C  
−40°C < TA < +125°C  
75  
pA  
Input Voltage Range  
Common-Mode Rejection Ratio  
−0.3  
70  
+1.6  
V
dB  
CMRR  
VCM = −0.3 V to +1.6 V  
90  
VCM = −0.1 V to +1.6 V; −40°C < TA < +125°C  
RL = 2 kΩ, VO = 0.5 V to 2.2 V  
65  
90  
85  
250  
1.3  
dB  
V/mV  
µV/°C  
Large Signal Voltage Gain  
Offset Voltage Drift  
AVO  
∆VOS/∆T  
6.0  
OUTPUT CHARACTERISTICS  
Output Voltage High  
VOH  
VOL  
IL = 1 mA  
−40°C < TA < +125°C  
IL = 1 mA  
2.64  
2.6  
2.66  
25  
V
V
mV  
mV  
mA  
Ω
Output Voltage Low  
40  
50  
−40°C < TA < +125°C  
Short-Circuit Current  
Closed-Loop Output Impedance  
POWER SUPPLY  
ISC  
ZOUT  
20  
12  
f = 1 MHz, AV = 1  
Power-Supply Rejection Ratio  
PSRR  
ISY  
VS = 2.7 V to 5.5 V  
−40°C < TA < +125°C  
VO = 0 V  
80  
75  
95  
95  
0.85  
dB  
dB  
mA  
mA  
Supply Current/Amplifier  
0.95  
1.2  
−40°C < TA < +125°C  
DYNAMIC PERFORMANCE  
Slew Rate  
Settling Time  
SR  
tS  
RL = 2 kΩ  
To 0.01%  
5
1
V/µs  
µs  
Gain Bandwidth Product  
Phase Margin  
Total Harmonic Distortion + Noise  
NOISE PERFORMANCE  
Voltage Noise  
GBP  
Øo  
THD+N  
10  
60  
0.003  
MHz  
Degrees  
%
G = 1, RL = 600 Ω, f = 1 kHz, VO = 250 mV p-p  
en p-p  
en  
f = 0.1 Hz to 10 Hz  
f = 1 kHz  
1.6  
8
3.0  
12  
µV p-p  
nV/√Hz  
nV/√Hz  
pA/√Hz  
Voltage Noise Density  
en  
f = 10 kHz  
6.5  
0.05  
Current Noise Density  
in  
f = 1 kHz  
Rev. 0 | Page 3 of 12  
 
AD8692  
VS = 5.0 V, VCM = VS/2, TA = 5°C, unless otherwise noted.  
Table 2.  
A Grade  
Typ  
Parameter  
Symbol  
Conditions  
Min  
Max Unit  
INPUT CHARACTERISTICS  
Offset Voltage  
VOS  
IB  
VCM = −0.3 V to +3.9 V  
VCM = −0.1 V to +3.9 V; −40°C < TA < +125°C  
0.4  
0.2  
2.0  
3.0  
1
mV  
mV  
pA  
Input Bias Current  
−40°C < TA < +85°C  
−40°C < TA < +125°C  
50  
pA  
pA  
pA  
pA  
260  
0.5  
20  
Input Offset Current  
IOS  
0.1  
−40°C < TA < +85°C  
−40°C < TA < +125°C  
75  
pA  
Input Voltage Range  
Common-Mode Rejection Ratio  
−0.3  
75  
+3.9  
V
dB  
CMRR  
VCM = −0.3 V to +3.9 V  
95  
VCM = −0.1 V to +3.9 V; −40°C < TA < +125°C  
VO = 0.5 V to 4.5 V, RL = 2 kΩ, VCM = 0 V  
70  
250  
95  
2,000  
1.3  
dB  
V/mV  
µV/°C  
Large Signal Voltage Gain  
Offset Voltage Drift  
AVO  
6
∆VOS/∆T  
OUTPUT CHARACTERISTICS  
Output Voltage High  
VOH  
IL = 1 mA  
4.96 4.98  
V
IL = 10 mA  
−40°C to +125°C  
IL = 1 mA  
IL = 10 mA  
−40°C to +125°C  
4.7  
4.6  
4.78  
V
V
Voltage Low  
VOL  
16.5  
165  
40  
210  
290  
mV  
mV  
mV  
mA  
Ω
Short-Circuit Current  
Closed-Loop Output Impedance  
POWER SUPPLY  
ISC  
ZOUT  
80  
10  
f = 1 MHz, AV = 1  
Power-Supply Rejection Ratio  
PSRR  
ISY  
VS = 2.7 V to 5.5 V  
−40°C < TA < +125°C  
VO = 0 V  
80  
75  
95  
95  
0.95  
dB  
dB  
Supply Current/Amplifier  
1.05 mA  
−40°C < TA < +125°C  
1.3  
mA  
DYNAMIC PERFORMANCE  
Slew Rate  
Settling Time  
SR  
tS  
RL = 2 kΩ  
To 0.01%  
5
1
V/µs  
µs  
Full Power Bandwidth  
Gain Bandwidth Product  
Phase Margin  
Total Harmonic Distortion + Noise  
NOISE PERFORMANCE  
Voltage Noise  
BWP  
GBP  
Øo  
<1% distortion  
360  
10  
65  
kHz  
MHz  
Degrees  
%
THD+N  
G = 1, RL = 600 Ω, f = 1 kHz, VO = 1 V p-p  
0.0006  
en p-p  
en  
f = 0.1 Hz to 10 Hz  
f = 1 kHz  
1.6  
8
3.0  
12  
µV p-p  
nV/√Hz  
nV/√Hz  
pA/√Hz  
Voltage Noise Density  
en  
in  
f = 10 kHz  
f = 1 kHz  
6.5  
Current Noise Density  
0.05  
Rev. 0 | Page 4 of 12  
AD8692  
ABSOLUTE MAXIMUM RATINGS  
TA = 25°C, unless otherwise noted.  
Table 3.  
Stresses above those listed under Absolute Maximum Ratings  
Parameters  
Ratings  
may cause permanent damage to the device. This is a stress  
rating only and 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.  
Supply Voltage  
Input Voltage  
Differential Input Voltage  
6 V  
VSS − 0.3 V to VDD + 0.3 V  
6 V  
Output Short-Circuit Duration to Gnd1 Observe derating curves  
Storage Temperature Range  
Operating Temperature Range  
Junction Temperature Range  
Lead Temperature Range  
(Soldering, 60 s)  
−65°C to +150°C  
−40°C to +125°C  
−65°C to +150°C  
300°C  
THERMAL CHARACTERISTICS  
Table 4.  
Package Type  
8-Lead MSOP (RM)  
8-Lead SOIC (R)  
θJA  
θJC  
45  
43  
Unit  
°C/W  
°C/W  
210  
158  
1 θJA is specified for the worst-case conditions, that is, the device soldered in  
the circuit board for surface-mount packages.  
ESD CAUTION  
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on  
the human body and test equipment and can discharge without detection. Although this product features  
proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy  
electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance  
degradation or loss of functionality.  
Rev. 0 | Page 5 of 12  
 
 
AD8692  
TYPICAL PERFORMANCE CHARACTERISTICS  
VS = +5 V or 2.5 V.  
2.5k  
300  
250  
200  
150  
100  
50  
V
V
= 5V  
S
V
= 5V AND 2.7V  
S
= –0.3V TO +3.9V  
CM  
2.0k  
1.5k  
1.0k  
500  
0
0
–50  
–2.0  
–1.5  
–1.0  
–0.5  
0
0.5  
1.0  
1.5  
2.0  
–40 –30 –20 –10  
0
10 20 30 40 50 60 70 80 90 100 110 120  
V
(mV)  
OS  
TEMPERATURE (°C)  
Figure 3. Input Offset Voltage Distribution  
Figure 6. Input Bias Current vs. Temperature  
2.0  
1.8  
1.6  
1.4  
1.2  
1.0  
0.8  
0.6  
0.4  
0.2  
0
30  
25  
20  
15  
10  
5
V
V
= 5V AND 2.7V  
S
= 2.5V  
CM  
T
= –40°C TO +125°C  
A
0
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0  
0
1
2
3
4
5
6
7
T
V
(µV/°C)  
OS  
V
(V)  
C
SY  
Figure 4. Input Offset Voltage Drift Distribution  
Figure 7. Supply Current vs. Supply Voltage  
2.0k  
1.6k  
1.2k  
800  
2.5  
2.0  
1.5  
1.0  
V
T
= 5V  
= 25°C  
V
= ±2.5V AND ±1.35V  
S
A
S
I
@ ±2.5V  
SY  
I
@ ±1.35V  
SY  
400  
0
–400  
–800  
–1.2k  
–1.6k  
–2.0k  
0.5  
0
–0.3  
0
0.3 0.6 0.9 1.2 1.5 1.8 2.1 2.4 2.7 3.0 3.3 3.6 3.9  
COMMON-MODE VOLTAGE (V)  
–40  
–20  
0
20  
40  
60  
80  
100  
120  
140  
TEMPERATURE (°C)  
Figure 5. Input Offset Voltage vs. Common-Mode Voltage  
Figure 8. Supply Current vs. Temperature  
Rev. 0 | Page 6 of 12  
 
AD8692  
10k  
1k  
100  
80  
60  
40  
20  
V
R
C
= ±2.5V, ±1.35V  
= 2kΩ  
SY  
L
L
= 15pF  
SOURCE  
SINK  
100  
10  
90  
45  
0
0
–20  
–40  
1
–45  
–90  
0.1  
0.001  
1k  
10k  
100k  
1M  
10M  
0.01  
0.1  
1
10  
100  
FREQUENCY (Hz)  
LOAD CURRENT (mA)  
Figure 12. Open-Loop Gain and Phase vs. Frequency  
Figure 9. Output Voltage to Supply Rail vs. Load Current  
35  
30  
25  
20  
15  
10  
5
120  
100  
80  
V
= 5V  
V
= 5V AND 2.7V  
S
S
V
– V  
@ 1mA  
DD  
OH  
60  
V
@ 1mA  
OL  
40  
20  
0
0
–40  
1k  
10k  
100k  
FREQUENCY (Hz)  
1M  
10M  
–20  
0
20  
40  
60  
80  
C)  
100  
120  
140  
TEMPERATURE (  
°
Figure 10. Output Voltage Swing vs. Temperature  
(IL = 1 mA)  
Figure 13. CMRR vs. Frequency  
350  
300  
250  
200  
150  
100  
50  
120  
100  
80  
V
= 5V  
V
= 5V AND 2.7V  
S
S
V
– V  
@ 10mA  
DD  
OH  
60  
V
@ 10mA  
OL  
40  
20  
0
0
–40  
10  
100  
1k  
10k  
100k  
1M  
10M  
–20  
0
20  
40  
60  
80  
C)  
100  
120  
140  
FREQUENCY (Hz)  
TEMPERATURE (  
°
Figure 11. Output Voltage Swing vs. Temperature  
(IL = 10 mA)  
Figure 14. PSRR vs. Frequency  
Rev. 0 | Page 7 of 12  
AD8692  
10k  
1k  
V
= ±2.5V  
V
= 5V  
= 200pF  
= ∞  
S
S
C
R
A
L
L
V
= 1  
A
= 100  
100  
10  
V
A
= 10  
V
1
A
= 1  
V
0.1  
0.01  
0.001  
0.0001  
100  
1k  
10k  
100k  
1M  
10M  
FREQUENCY (Hz)  
TIME (400nV/DIV)  
Figure 15. Closed-Loop Output Impedance vs. Frequency  
Figure 18. Large Signal Transient Response  
40  
35  
30  
25  
20  
15  
10  
5
V
R
A
= 5V AND 2.7V  
= ∞  
= 1  
S
V
A
= ±2.5V  
= –50  
S
L
V
V
0
–2.5  
100  
0
0
1
10  
100  
1k  
LOAD CAPACITANCE (pF)  
TIME (400ns/DIV)  
Figure 16. Small Signal Overshoot vs. Load Capacitance  
Figure 19. Positive Overload Recovery  
V
= ±2.5V, ±1.35V  
= 10kΩ  
= 200pF  
= 1  
S
V
A
= ±2.5V  
= –50  
S
R
C
A
L
L
V
V
2.5  
0
0
–100  
TIME (200ns/DIV)  
TIME (400ns/DIV)  
Figure 17. Small Signal Transient Response  
Figure 20. Negative Overload Recovery  
Rev. 0 | Page 8 of 12  
AD8692  
1k  
0.1  
0.01  
V
= ±2.5V AND ±1.35V  
V
A
V
=
= 1  
±
2.5V  
S
S
V
= 1V p-p  
IN  
BW = 20kHz  
100  
R
= 600Ω  
L
R
= 1k  
Ω
L
10  
0.001  
R
= 100kΩ  
L
1
0.0001  
1
10  
100  
FREQUENCY (Hz)  
1k  
10k  
20  
100  
1k  
10k 20k  
FREQUENCY (Hz)  
Figure 21. THD + N vs. Frequency  
Figure 23. Voltage Noise Density  
150  
140  
130  
120  
110  
+2.5V  
R1  
V
= 5V AND 2.7V  
S
10kΩ  
V+  
A
V–  
R2  
100Ω  
V
IN  
V–  
28mV p-p  
B
V
OUT  
V+  
–2.5V  
100  
90  
80  
1k  
10k  
100k  
FREQUENCY (Hz)  
1M  
10M  
TIME (1s/DIV)  
Figure 22. 0.1 Hz to 10 Hz Input Voltage Noise  
Figure 24. Channel Separation  
Rev. 0 | Page 9 of 12  
AD8692  
VS = +2.7 V or 1.35 V.  
1.2k  
60  
50  
40  
30  
20  
10  
0
V
V
= 2.7V  
S
V
= 2.7V  
S
= –0.3V TO +1.6V  
CM  
1.0k  
800  
600  
400  
200  
0
V
– V @ 1mA  
OH  
DD  
V
@ 1mA  
OL  
–2.0  
–1.5  
–1.0  
–0.5  
0
0.5  
1.0  
1.5  
2.0  
–40  
–20  
0
20  
40  
60  
80  
100  
120  
140  
V
(mV)  
OS  
TEMPERATURE (°C)  
Figure 28. Output Voltage Swing vs. Temperature  
Figure 25. Input Offset Voltage Distribution  
2.0k  
1.6k  
1.2k  
800  
V
= 2.7V  
= 200pF  
= ∞  
S
V
T
= 2.7V  
= 25°C  
C
R
A
S
A
L
L
V
= 1  
400  
0
–400  
–800  
–1.2k  
–1.6k  
–2.0k  
–0.3  
0
0.3  
0.6  
0.9  
1.2  
1.5 1.6  
TIME (400ns/DIV)  
COMMON-MODE VOLTAGE (V)  
Figure 29. Large Signal Transient Response  
Figure 26. Input Offset Voltage vs. Common-Mode Voltage  
10k  
1k  
V
= 2.7V  
S
SOURCE  
100  
10  
SINK  
1
0.1  
0.001  
0.01  
0.1  
1
10  
100  
LOAD CURRENT (mA)  
Figure 27. Output Voltage to Supply Rail vs. Load Current  
Rev. 0 | Page 10 of 12  
AD8692  
OUTLINE DIMENSIONS  
3.00  
BSC  
8
5
4
4.90  
BSC  
3.00  
BSC  
PIN 1  
0.65 BSC  
1.10 MAX  
0.15  
0.00  
0.80  
0.60  
0.40  
8°  
0°  
0.38  
0.22  
0.23  
0.08  
COPLANARITY  
0.10  
SEATING  
PLANE  
COMPLIANT TO JEDEC STANDARDS MO-187AA  
Figure 30. 8-Lead Mini Small Outline Package [MSOP]  
(RM-8)  
Dimensions shown in millimeters  
5.00 (0.1968)  
4.80 (0.1890)  
8
1
5
4
6.20 (0.2440)  
5.80 (0.2284)  
4.00 (0.1574)  
3.80 (0.1497)  
1.27 (0.0500)  
BSC  
0.50 (0.0196)  
0.25 (0.0099)  
× 45°  
1.75 (0.0688)  
1.35 (0.0532)  
0.25 (0.0098)  
0.10 (0.0040)  
8°  
0.51 (0.0201)  
0.31 (0.0122)  
0° 1.27 (0.0500)  
COPLANARITY  
0.10  
0.25 (0.0098)  
0.17 (0.0067)  
SEATING  
PLANE  
0.40 (0.0157)  
COMPLIANT TO JEDEC STANDARDS MS-012AA  
CONTROLLING DIMENSIONS ARE IN MILLIMETERS; INCH DIMENSIONS  
(IN PARENTHESES) ARE ROUNDED-OFF MILLIMETER EQUIVALENTS FOR  
REFERENCE ONLY AND ARE NOT APPROPRIATE FOR USE IN DESIGN  
Figure 31. 8-Lead Standard Small Outline Package [SOIC]  
(R-8)  
Dimensions shown in millimeters and (inches)  
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  
Package Option  
Branding  
AD8692ARMZ-R21  
AD8692ARMZ-REEL1  
AD8692ARZ1  
AD8692ARZ-REEL1  
AD8692ARZ-REEL71  
8-Lead MSOP  
8-Lead MSOP  
8-Lead SOIC  
8-Lead SOIC  
8-Lead SOIC  
RM-8  
RM-8  
R-8  
R-8  
R-8  
APA  
APA  
1 Z = Pb-free part.  
Rev. 0 | Page 11 of 12  
 
 
 
AD8692  
NOTES  
©
2004 Analog Devices, Inc. All rights reserved. Trademarks and  
registered trademarks are the property of their respective owners.  
D04991–0–10/04(0)  
Rev. 0 | Page 12 of 12  

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