AD9002BJ Analog Devices, AD9002BJ Datasheet

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AD9002BJ

Manufacturer Part Number
AD9002BJ
Description
Manufacturer
Analog Devices
Datasheet

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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.
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 megasamples/
second. Functionally, 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.
REV. F
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
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 ceramic DIP and LCC pack-
ages and comply with MIL-STD-883 Class B.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
Fax: 781/326-8703
OVERFLOW
ANALOG IN
ENCODE
ENCODE
INHIBIT
REF
+V
–V
REF
REF
MID
Monolithic A/D Converter
FUNCTIONAL BLOCK DIAGRAM
R
R/2
R/2
R
R
R
R
GND
128
127
256
255
HYSTERESIS
1
2
High-Speed 8-Bit
O
G
O
G
D
E
C
D
N
L
C
I
I
© Analog Devices, Inc., 2001
AD9002
–V
L
A
T
C
H
S
AD9002
www.analog.com
OVERFLOW
BIT 8 (MSB)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1 (LSB)

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AD9002BJ Summary of contents

Page 1

... This overflow output can be disabled with the overflow inhibit pin. REV. F 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 ...

Page 2

AD9002–SPECIFICATIONS ELECTRICAL CHARACTERISTICS Parameter Temp RESOLUTION DC ACCURACY Differential Linearity 25°C Full Integral Linearity 25°C Full No Missing Codes Full INITIAL OFFSET ERROR Top of Reference Ladder 25°C Full Bottom of Reference Ladder 25°C Full Offset Drift Coefficient Full ANALOG ...

Page 3

... Test Level IV – Parameter is guaranteed by design and Test Level V Test Level VI – All devices are 100% production tested at Model AD9002AD AD9002BD AD9002AJ AD9002BJ AD9002SD/883B 0.75 LSB AD9002SE/883B 0.75 LSB AD9002TD/883B 0.50 LSB AD9002TE/883B 0.50 LSB *D = Ceramic DIP Leadless Ceramic Chip Carrier Ceramic Chip Carrier, J-Formed Leads. ...

Page 4

AD9002 Pin # Mnemonic Description 1 DIGITAL GROUND One of four digital ground pins. All digital ground pins should be connected together. 2 OVERFLOW INH OVERFLOW INHIBIT controls the data output polarity for overvoltage inputs. 3 HYSTERESIS The Hysteresis control ...

Page 5

ANALOG INPUT ENCODE OUTPUT DATA AD9002 ENCODE ANALOG INPUT ENCODE –5.2V 0.1 F –V S OVERFLOW HYSTERESIS OVERFLOW INH 100 AD1 ANALOG IN 1k AD2 ENCODE 1k ENCODE AD3 –2V –V REF AD9002 0 REF GROUND STATIC BURN ...

Page 6

AD9002 APPLICATION INFORMATION The AD9002 is compatible with all standard ECL logic families, including 10K and 10KH. 100K ECL’s logic levels are tempera- ture compensated, and are therefore compatible with the AD9002 (and most other ECL device families) only over ...

Page 7

HOS200 10 F ANALOG INPUT 50 2k AD96687 1k 3.9k 0.1 F –15V 1k –5.2V AD96687 ENCODE INPUT (GROUND THRESHOLD) 50 *CONTACT FACTORY ABOUT EVALUATION BOARD AVAILABILITY REV. F LINEARITY OUTPUT (ERROR WAVEFORM) HOS100 1k –15V 4.3k 1k 150 ...

Page 8

AD9002 PIN 1 0.225 (5.72) 0.200 (5.08) 0.125 (3.18) 0.458 (11.63) 0.442 (11.23) VIEW BOTTOM VIEW 0.022 0.003 (0.559 0.076) Revision History Location Data Sheet changed from REV REV. F. Edit to ABSOLUTE MAXIMUM RATINGS . . . ...

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