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부품번호 | AD9631 기능 |
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기능 | Wide Bandwidth Voltage Feedback Op Amps | ||
제조업체 | Analog Devices | ||
로고 | |||
전체 20 페이지수
Data Sheet
Ultralow Distortion, Wide Bandwidth
Voltage Feedback Op Amps
AD9631/AD9632
FEATURES
Wide bandwidth
AD9631, G = +1
AD9632, G = +2
Small signal
AD9631, 320 MHz
AD9632, 250 MHz
Large signal (4 V p-p)
AD9631, 175 MHz
AD9632, 180 MHz
Ultralow distortion (SFDR), low noise
−113 dBc typical @ 1 MHz
−95 dBc typical @ 5 MHz
−72 dBc typical @ 20 MHz
46 dBm third-order intercept @ 25 MHz
7.0 nV/√Hz spectral noise density
High speed
Slew rate: 1300 V/μs
Settling time to 0.01%, 2 V step: 16 ns
±3 V to ±5 V supply operation
17 mA supply current
APPLICATIONS
ADC input driver
Differential amplifiers
IF/RF amplifiers
Pulse amplifiers
Professional video
DAC current to voltage
Baseband and video communications
Pin diode receivers
Active filters/integrators/log amps
GENERAL DESCRIPTION
The AD9631/AD9632 are very high speed and wide bandwidth
amplifiers. The AD9631 is unity gain stable. The AD9632 is
stable at gains of 2 or greater. Using a voltage feedback
architecture, the exceptional settling time, bandwidth, and low
distortion of the AD9631/AD9632 meet the requirements of
many applications that previously depended on current feed-
back amplifiers. Its classical op amp structure works much more
predictably in many designs.
PIN CONFIGURATION
NC 1
–INPUT 2
AD9631/
AD9632
8 NC
7 +VS
+INPUT 3
6 OUTPUT
–VS
4
TOP VIEW
(Not to Scale)
5
NC
NOTES
1. NC = NO CONNECT.
Figure 1. 8-Lead PDIP (N) and SOIC (R) Packages
A proprietary design architecture has produced an amplifier
that combines many of the best characteristics of both current
feedback and voltage feedback amplifiers. The AD9631/AD9632
exhibit exceptionally fast and accurate pulse response (16 ns to
0.01%) as well as extremely wide small signal and large signal
bandwidth and ultralow distortion. The AD9631 achieves
−72 dBc at 20 MHz, 320 MHz small signal bandwidth, and
175 MHz large signal bandwidths.
These characteristics position the AD9631/AD9632 ideally for
driving flash as well as high resolution ADCs. Additionally, the
balanced high impedance inputs of the voltage feedback archi-
tecture allow maximum flexibility when designing active filters.
The AD9631/AD9632 are offered in the industrial (−40°C to
+85°C) temperature range. They are available in PDIP and SOIC.
–30
VS = ±5V
–40
RL = 500Ω
VOUT = 2V p-p
–50
–60
–70
–80
–90
–100
SECOND HARMONIC
–110
–120
THIRD HARMONIC
–130
10k
100k
1M
FREQUENCY (Hz)
10M
100M
Figure 2. AD9631 Harmonic Distortion vs. Frequency, G = +1
Rev. D
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
©2014 Analog Devices, Inc. All rights reserved.
Technical Support
www.analog.com
AD9631/AD9632
Data Sheet
Parameter
OUTPUT CHARACTERISTICS
Output Voltage Range
Output Current
Output Resistance
Short Circuit Current
POWER SUPPLY
Operating Range
Quiescent Current
Power Supply Rejection Ratio
Test Conditions/Comments
RL = 150 Ω
TMIN − TMAX
TMIN − TMAX
1 See the Absolute Maximum Ratings and Theory of Operation sections of this data sheet.
2 Measured at AV = 50.
3 Measured with respect to the inverting input.
AD9631
AD9632
Min Typ Max Min Typ Max Unit
±3.2 ±3.9
70
0.3
240
±3.2 ±3.9
70
0.3
240
V
mA
Ω
mA
±3.0 ±5.0 ±6.0 ±3.0 ±5.0 ±6.0 V
17 18
16 17 mA
21 20 mA
50 60
56 66
dB
Rev. D | Page 4 of 20
4페이지 Data Sheet
PULSE
GENERATOR
TR/TF = 350ps
RIN
RF
+VS 10µF
0.1µF
130Ω
VIN
RT
49.9Ω
AD9632
0.1µF
10µF
VOUT
RL = 100Ω
–VS
Figure 11. AD9632 Noninverting Configuration, G = +2
AD9631/AD9632
RF
PULSE
GENERATOR
TR/TF = 350ps
VIN RIN
RT
49.9Ω
100Ω
+VS 10µF
0.1µF
AD9632
0.1µF
10µF
VOUT
RL = 100Ω
–VS
Figure 14. AD9632 Inverting Configuration, G = −1
1V 5ns
Figure 12. AD9632 Large Signal Transient Response; VOUT = 4 V p-p, G = +2,
RF = RIN = 422 Ω
1V 5ns
Figure 15. AD9632 Large Signal Transient Response; VOUT = 4 V p-p, G = −1,
RF = RIN = 422 Ω, RT = 56.2 Ω
100mV
5ns
Figure 13. AD9632 Small Signal Transient Response; VOUT = 400 mV p-p,
G = +2, RF = RIN = 274 Ω
100mV
5ns
Figure 16. AD9632 Small Signal Transient Response; VOUT = 400 mV p-p,
G = −1, RF = RIN = 267 Ω, RT = 61.9 Ω
Rev. D | Page 7 of 20
7페이지 | |||
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부품번호 | 상세설명 및 기능 | 제조사 |
AD9630 | Low Distortion 750 MHz Closed-Loop Buffer Amp | Analog Devices |
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DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |