AD53042 Datasheet, PDF (1/4 Pages) Analog Devices – High Speed Window Comparator

a
High Speed Window Comparator
AD53042
FEATURES
–2 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
FUNCTIONAL BLOCK DIAGRAM
GND
LEA LEA NC +VS NC GND
GND
V_A
NC
V_IN
NC
V_B
GND
LATCH/OUTPUT
A
AD53042
LATCH/OUTPUT
B
GND
QA
QA
DGND
QB
QB
GND
GND
LEB LEB NC NC –V_S 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 Ω line terminated to –2 V. The device
also provides a latch function, allowing operation in track-hold
mode and can also be used to generate hysteresis.
3.0V
0V
MIN. POSITIVE
INPUT PULSE
2.8V
3.0V
MIN. NEGATIVE
INPUT PULSE
0.2V
0V
Figure 1. Typical Application Circuit
REV. A
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