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PDF ( 数据手册 , 数据表 ) AD9002

零件编号 AD9002
描述 High Speed 8-Bit Monolithic A/D Converter
制造商 Analog Devices
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AD9002 数据手册, 描述, 功能
a
High Speed 8-Bit
Monolithic A/D Converter
AD9002
FEATURES
150 MSPS ENCODE Rate
Low Input Capacitance: 17 pF
Low Power: 750 mW
–5.2 V Single Supply
MIL-STD-883 Compliant Versions Available
APPLICATIONS
Radar Systems
Digital Oscilloscopes/ATE Equipment
Laser/Radar Warning Receivers
Digital Radio
Electronic Warfare (ECM, ECCM, ESM)
Communication/Signal Intelligence
GENERAL DESCRIPTION
The AD9002 is an 8-bit, high speed, analog-to-digital converter.
The AD9002 is fabricated in an advanced bipolar process that
allows operation at sampling rates in excess of 150 MSPS. Func-
tionally, the AD9002 is comprised of 256 parallel comparator
stages whose outputs are decoded to drive the ECL compatible
output latches.
An exceptionally wide, large signal, analog input bandwidth of
160 MHz is due to an innovative comparator design and very
close attention to device layout considerations. The wide input
bandwidth of the AD9002 allows very accurate acquisition of
high speed pulse inputs without an external track-and-hold. The
comparator output decoding scheme minimizes false codes,
which is critical to high speed linearity.
The AD9002 provides an external hysteresis control pin that
can be used to optimize comparator sensitivity to further improve
performance. Additionally, the AD9002’s low power dissipation
of 750 mW makes it usable over the full extended temperature
range. The AD9002 also incorporates an overflow bit to indicate
overrange inputs. This overflow output can be disabled with the
overflow inhibit pin.
FUNCTIONAL BLOCK DIAGRAM
OVERFLOW
INH
ANALOG IN
+VREF
REFMID
–VREF
ENCODE
ENCODE
AD9002
R 256
OVERFLOW
R
255
BIT 8 (MSB)
D
E
BIT 7
RC
128
O
DL
BIT 6
IA
R/2
NT
GC
BIT 5
H
R/2 L
127 O
BIT 4
G
I
R C BIT 3
2 BIT 2
R
1
BIT 1 (LSB)
GND HYSTERESIS
–VS
The AD9002 is available in two grades, one with 0.5 LSB linearity
and one with 0.75 LSB linearity. Both versions are offered in an
industrial grade, –25°C to +85°C, packaged in a 28-lead DIP
and a 28-leaded JLCC. The military temperature range devices,
–55°C to +125°C, are available in a ceramic DIP package and
complies with MIL-STD-883 Class B.
REV. G
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. 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 companies.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
www.analog.com
Fax: 781/326-8703 © 2003 Analog Devices, Inc. All rights reserved.







AD9002 pdf, 数据表
AD9002
OUTLINE DIMENSIONS
28-Lead Ceramic Chip Carrier - J-Formed Leads [ JLCC]
(J-28A)
Dimensions shown in inches and (millimeters)
0.125 (3.18)
MAX
0.460 (11.68)
SQ
0.440 (11.18)
4 26
0.040 (1.02)
REF
x 45
3 PLACES
26
0.035 (0.89)
0.025 (0.64)
0.450 (11.43)
0.410 (10.41)
5
0.050
(1.27)
PIN 1
TOP VIEW
25 25
0.310 (7.87)
0.290 (7.37)
PIN 1 INDEX
0.055 (1.40)
BOTTOM VIEW
0.022 (0.56)
0.012 (0.30)
11
12
19
18
0.500 (12.70)
SQ
0.480 (12.19)
19
18
0.020 (0.51)
REF
x 45
4
5
11
12
CONTROLLING DIMENSIONS ARE IN INCHES; MILLIMETERS DIMENSIONS
(IN PARENTHESES) ARE ROUNDED-OFF INCH EQUIVALENTS FOR
REFERENCE ONLY AND ARE NOT APPROPRIATE FOR USE IN DESIGN
28-Lead Side-Brazed Ceramic Dual In-Line Package [SBDIP]
(D-28)
Dimensions shown in inches and (millimeters)
0.005 (0.13)
MIN
28
0.100 (2.54)
MAX
15
PIN 1
1
0.610 (15.49)
0.580 (12.73)
14
0.085 (2.16)
MAX
1.490 (37.85) MAX
0.200 (5.08)
0.125 (3.18) 0.026 (0.66)
0.014 (0.36)
0.100 (2.54)
0.070 (1.78)
0.030 (0.76)
0.060 (1.52)
0.015 (0.38)
0.150
(3.81)
MIN
SEATING
PLANE
0.620 (15.75)
0.590 (14.99)
0.018 (0.46)
0.008 (0.20)
CONTROLLING DIMENSIONS ARE IN INCHES; MILLIMETER DIMENSIONS
(IN PARENTHESES) ARE ROUNDED-OFF INCH EQUIVALENTS FOR
REFERENCE ONLY AND ARE NOT APPROPRIATE FOR USE IN DESIGN
Revision History
Location
Page
5/03—Data Sheet changed from REV. F to REV. G.
Deleted the E-28A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Universal
Changes to OUTLINE DIMENSIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Data Sheet changed from REV. E to REV. F.
Edit to ABSOLUTE MAXIMUM RATINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
–8– REV. G














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