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PDF AD9631 Data sheet ( Hoja de datos )
| Número de pieza | AD9631 | |
| Descripción | Wide Bandwidth Voltage Feedback Op Amps | |
| Fabricantes | Analog Devices | |
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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
1 page  
Data Sheet
ABSOLUTE MAXIMUM RATINGS
Table 2.
Parameter
Supply Voltage (+VS to −VS)
Voltage Swing × Bandwidth Product
Internal Power Dissipation
PDIP (N)
SOIC (R)
Input Voltage (Common Mode)
Differential Input Voltage
Output Short Circuit Duration
Storage Temperature Range
Operating Temperature Range (A Grade)
Lead Temperature Range (Soldering 10 sec)
Rating
12.6 V
550 V × MHz
1.3 W
0.9 W
±VS
±1.2 V
Observe Power
Derating Curves
−65°C to +125°C
−40°C to +85°C
300°C
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.
METALLIZATION PHOTO
–IN +VS
27
0.046
(1.17)
6
OUT
34
AD9631
+IN –VS
0.050 (1.27)
–IN +VS
27
AD9631/AD9632
THERMAL RESISTANCE
Table 3.
Package Type1
8-Lead PDIP (N)
8-Lead SOIC (R)
θJA Unit
90 °C/W
140 °C/W
1 For device in free air.
MAXIMUM POWER DISSIPATION
The maximum power that can be safely dissipated by these
devices is limited by the associated rise in junction temperature.
The maximum safe junction temperature for plastic encapsu-
lated devices is determined by the glass transition temperature
of the plastic, approximately 150°C. Exceeding this limit tempo-
rarily may cause a shift in parametric performance due to a
change in the stresses exerted on the die by the package.
Exceeding a junction temperature of 175°C for an extended
period can result in device failure.
While the AD9631 and AD9632 are internally short circuit
protected, this may not be sufficient to guarantee that the max-
imum junction temperature (150°C) is not exceeded under all
conditions. To ensure proper operation, it is necessary to
observe the maximum power derating curves.
2.0
TJ = 150°C
8-LEAD PDIP PACKAGE
1.5
1.0
8-LEAD SOIC PACKAGE
0.5
0
–50 –40 –30 –20 –10 0 10 20 30 40 50 60 70 80 90
AMBIENT TEMPERATURE (°C)
Figure 4. Maximum Power Dissipation vs. Temperature
ESD CAUTION
0.046
(1.17)
6
OUT
34
+IN –VS
AD9632
Figure 3. Dimensions shown in inches and (millimeters) Connect Substrate to −VS
Rev. D | Page 5 of 20
5 Page 
Data Sheet
–30
VS = ±5V
–40 RL = 500Ω
G = +2
–50 VOUT = 2V p-p
–60
–70
–80
SECOND
–90 HARMONIC
–100
–110
THIRD
HARMONIC
–120
–130
10k
100k
1M
FREQUENCY (Hz)
10M
100M
Figure 35. AD9632 Harmonic Distortion vs. Frequency, RL = 500 Ω
–30
VS = ±5V
–40 RL = 100Ω
G = +2
–50 VOUT = 2V p-p
–60
SECOND
–70 HARMONIC
–80
–90
–100
–110
THIRD
HARMONIC
–120
–130
10k
100k
1M
FREQUENCY (Hz)
10M
100M
Figure 36. AD9632 Harmonic Distortion vs. Frequency, RL = 100 Ω
50
45
40
35
30
25
20
15
10
10
100
FREQUENCY (MHz)
Figure 37. AD9632 Third Order Intercept vs. Frequency
AD9631/AD9632
0.04
0.02
0
–0.02
–0.04
0.04
0.02
0
–0.02
–0.04
1ST 2ND 3RD 4TH 5TH 6TH 7TH 8TH 9TH 10TH 11TH
Figure 38. AD9632 Differential Gain and Phase Error G = +2, RL = 150 Ω
0.2
0.1
0
–0.1
–0.2
–0.3
0
10 20 30 40 50 60 70 80
SETTLING TIME (ns)
Figure 39. AD9632 Short-Term Settling Time, 2 V Step, RL = 100 Ω
0.3
0.2
0.1
0
–0.1
–0.2
0 1 2 3 4 5 6 7 8 9 10
SETTLING TIME (µs)
Figure 40. AD9632 Long-Term Settling Time, 2 V Step, RL = 100 Ω
Rev. D | Page 11 of 20
11 Page | ||
| Páginas | Total 20 Páginas | |
| PDF Descargar | [ Datasheet AD9631.PDF ] | |
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