a
FEATURES
鈥? V to +7 V Input Voltage Range
Low V
IN
Bias Current (<100 nA)
Up to 5 V/ns Input Signal Tracking
Low Dispersion of 100 ps
28-Lead PLCC Package
APPLICATIONS
Automatic Test Equipment
Semiconductor Test Systems
Board Test Systems
High Speed Window Comparator
AD53042
FUNCTIONAL BLOCK DIAGRAM
GND
LEA
LEA NC +V
S
NC GND
GND
QA
LATCH/OUTPUT
A
QA
DGND
QB
LATCH/OUTPUT
B
QB
GND
GND
V
A
NC
V
IN
NC
V
B
GND
AD53042
LEB
LEB NC NC 鈥揤
S
GND
GND
NOTE:
NOT THE ACTUAL PHYSICAL LAYOUT OF DEVICE.
NC = NO CONNECTION INSIDE PACKAGE.
PRODUCT DESCRIPTION
The AD53042 is an ultrahigh speed window comparator
with latch. It uses a high speed monolithic process to provide
high dc accuracy without sacrificing input voltage range.
On-chip connection of the common input eliminates the
contributions of a second bonding pad and package pin to
the input capacitance, resulting in a maximum input
capacitance of 2 pF.
The AD53042 employs a high precision differential input
stage with a common mode range of 9 V. Its complementary
digital outputs are fully ECL-compatible. The output stage is
capable of driving a 50
鈩?/div>
line terminated to 鈥? V. The device
also provides a latch function, allowing operation in track-hold
mode and can also be used to generate hysteresis.
3.0V
2.8V
MIN. POSITIVE
INPUT PULSE
0V
3.0V
MIN. NEGATIVE
INPUT PULSE
0.2V
0V
Figure 1. Typical Application Circuit
REV. A
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.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
World Wide Web Site: http://www.analog.com
Fax: 781/326-8703
漏 Analog Devices, Inc., 1999
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