AD8564 Datasheet, PDF (1/8 Pages) Analog Devices – Quad 7 ns Single Supply Comparator

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FEATURES
+5 V Single-Supply Operation
7 ns Propagation Delay
Low Power
Separate Input and Output Sections
TTL and CMOS Logic Compatible Outputs
Wide Output Swing
TSSOP, SOIC and PDIP Packages
APPLICATIONS
High Speed Timing
Line Receivers
Data Communications
High Speed V-to-F Converters
Battery Operated Instrumentation
High Speed Sampling Systems
Window Comparators
Read Channel Detection
PCMCIA Cards
Upgrade for MAX901 Designs
GENERAL DESCRIPTION
The AD8564 is quad 7 ns comparator with separate input and
output supplies, thus enabling the input stage to be operated
from ± 5 V dual supplies or a +5 V single supply while maintain-
ing a CMOS/TTL-compatible output.
Fast 7 ns propagation delay makes the AD8564 a good choice
for timing circuits and line receivers. Independent analog and
digital supplies provide excellent protection from supply pin
interaction. The AD8564 is pin compatible with the MAX901,
and has lower supply currents.
All four comparators have similar propagation delays. The
propagation delay for rising and falling signals is similar, and
tracks over temperature and voltage. These characteristics
make the AD8564 a good choice for high speed timing and data
communications circuits. For a similar dual comparator with a
latch function, please see the AD8598 data sheet. For a similar
single comparator with latch function, please see the AD8561
data sheet.
The AD8564 is specified over the industrial (–40°C to +85°C)
temperature range. The quad AD8564 is available in the 16-
lead plastic DIP, narrow SO-16 surface mount, and 16-lead
TSSOP packages.
Quad 7 ns
Single Supply Comparator
AD8564
PIN CONFIGURATIONS
16-Lead Narrow Body SO
(S Suffix)
R-16A
–IN A
+IN A
GND
OUT A
OUT B
V_–ANA
+IN B
–IN B
AD8564
–IN D
+IN D
V_+ANA
OUT D
OUT C
V_+DIG
+IN C
–IN C
16-Lead Epoxy DIP
(P Suffix)
N-16
–IN A 1
16 –IN D
+IN A 2
GND 3
OUT A 4
OUT B 5
+–
AD8564
15 +IN D
14 V_+ANA
13 OUT D
12 OUT C
V_–ANA 6
+–
+IN B 7
11 ^V+DIG
10 +IN C
–IN B 8
9 –IN C
16-Lead TSSOP
(RU-Suffix)
RU-16
–IN A
+IN A
GND
OUT A
OUT B
V_–ANA
+IN B
–IN B
1
16
AD8564
8
9
–IN D
+IN D
V_+ANA
OUT D
OUT C
V_+DIG
+IN C
–IN C
REV. A
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© Analog Devices, Inc., 1999