ad9630an Analog Devices, Inc., ad9630an Datasheet

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ad9630an

Manufacturer Part Number
ad9630an
Description
Low Distortion 750 Mhz Closed-loop Buffer Amp
Manufacturer
Analog Devices, Inc.
Datasheet

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a
*Protected under U.S. patent numbers 5,150,074 and 5,537,079.
GENERAL DESCRIPTION
The AD9630 is a monolithic buffer amplifier that utilizes a
patented, innovative, closed-loop design technique to achieve
exceptional gain accuracy, wide bandwidth, and low distortion.
Slew rate limiting has been overcome as indicated by the
1200 V/ s slew rate; this improvement allows the user greater
flexibility in wideband and pulse applications. The second har-
monic distortion terms for an analog input tone of 4.3 MHz
and 20 MHz are –80 dBc and –66 dBc, respectively. Clearly,
the AD9630 establishes a new standard by combining out-
standing dc and dynamic performance in one part.
REV. B
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
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
FEATURES
Excellent Gain Accuracy: 0.99 V/V
Wide Bandwidth: 750 MHz
Slew Rate: 1200 V/ s
Low Distortion
Settling Time
Low Noise: 2.4 nV/ Hz
Improved Source for CLC-110
APPLICATIONS
IF/Communications
Impedance Transformations
Drives Flash ADCs
Line Driving
–65 dBc @ 20 MHz
–80 dBc @ 4.3 MHz
5 ns to 0.1%
8 ns to 0.02%
The large signal bandwidth, low distortion over frequency, and
drive capabilities of the AD9630 make the buffer an ideal flash
ADC driver. The AD9630 provides better signal fidelity than
many of the flash ADCs that it has been designed to drive.
Other applications that require increased current drive at unity
voltage gain (such as cable driving) benefit from the AD9630’s
performance.
The AD9630 is available in plastic DIP (N) and SOIC (R).
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 617/329-4700
Fax: 617/326-8703
NOTE: FOR BEST SETTLING TIME PERFORMANCE USE
OPTIONAL POWER SUPPLIES. ALL SPECIFICATIONS
ARE BASED ON USING SINGLE
EXCEPT FOR SETTLING TIME TO 0.02% AND SMALL
SIGNAL S21. CONSULT THE FACTORY FOR VERSIONS
WITH OPTIONAL POWER SUPPLY PINS DISCONNECTED
INTERNAL TO THE PACKAGE.
Closed-Loop Buffer Amp
**OPTIONAL +V
Low Distortion 750 MHz
PIN CONFIGURATION
INPUT
World Wide Web Site: http://www.analog.com
+V
NC
**
S
NC = NO CONNECT
1
2
3
4
S
AD9630
***OPTIONAL –V
V
S
CONNECTIONS,
8
7
6
5
© Analog Devices, Inc., 1999
OUTPUT
NC
***
–V
AD9630*
S
S

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ad9630an Summary of contents

Page 1

... AD9630’s performance. The AD9630 is available in plastic DIP (N) and SOIC (R). One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 617/329-4700 World Wide Web Site: http://www.analog.com Fax: 617/326-8703 AD9630* OUTPUT *** – CONNECTIONS, © Analog Devices, Inc., 1999 ...

Page 2

... V Step T to +25 OUT MIN = 2 V Step T OUT MAX + Full CC = –5 V Full EE –2– 100 ) S IN LOAD Test AD9630AN/AR Level Min Typ I – – – –100 20 II 300 450 VI 150 250 V 1.0 II 0.983 0.990 VI ...

Page 3

... Lead Soldering Temperature (10 sec +300 C Storage Temperature AD9630AN/ – +150 C 3 Junction Temperature AD9630AN/ +150 C NOTES 1 Absolute maximum ratings are limiting values to be applied individually, and beyond which the serviceability of the circuit may be impaired. Functional operability is not necessarily implied. Exposure to absolute maximum rating conditions for an extended period of time may affect device reliability ...

Page 4

AD9630 –1 –2 –3 –4 –5 –6 –7 –8 <0.1MHz 100MHz C L Figure 2. Frequency Response vs. C with Recommended pulse mode applications, with R equal to approximately capacitive loads ...

Page 5

R = 200 –100 L –200 –300 –400 R = 100 L –500 –600 –700 –800 –900 –1000 –3 –2 – VOLTS Figure 4. Endpoint DC Linearity 10M ...

Page 6

AD9630 0.1 TEST CIRCUIT 0.08 0.06 100 6pF 0.04 0.02 0 –0.02 –0.04 –0.06 –0. STEP OUT –0 TIME – ns Figure 13. Short-Term Settling Time 100 L 50 ...

Page 7

Plastic DIP (N-8) 0.430 (10.92) 0.348 (8.84 0.280 (7.11) 0.240 (6.10 0.325 (8.25) PIN 1 0.100 (2.54) 0.300 (7.62) BSC 0.060 (1.52) 0.210 0.015 (0.38) (5.33) MAX 0.130 0.160 (4.06) (3.30) MIN 0.115 (2.93) 0.022 ...

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