Quad 7 ns
Single Supply Comparator
a
AD8564
FEATURES
PIN CONFIGURATIONS
+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
16-Lead Epoxy DIP
(P Suffix)
16-Lead Narrow Body SO
(S Suffix)
N-16
R-16A
–IN D
–IN A
+IN A
GND
–IN A
1
2
3
4
5
6
7
8
16 –IN D
15 +IN D
+
+IN D
TSSOP, SOIC and PDIP Packages
V
+ANA
+IN A
GND
+
–
–
OUT D
OUT C
+DIG
OUT A
OUT B
–ANA
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
14
13
12
V
+ANA
V
V
OUT D
OUT C
OUT A
OUT B
+IN B
+IN C
AD8564
–IN B
–IN C
V
AD8564
V
11
+DIG
–ANA
+
–
+
–
+IN C
–IN C
+IN B
–IN B
10
9
16-Lead TSSOP
(RU-Suffix)
RU-16
Upgrade for MAX901 Designs
–IN A
+IN A
GND
–IN D
1
16
+IN D
V
+ANA
OUT A
OUT D
AD8564
OUT C
OUT B
GENERAL DESCRIPTION
V
V
+DIG
–ANA
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.
+IN B
–IN B
+IN C
–IN C
8
9
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.
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.
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Tel: 781/329-4700
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© Analog Devices, Inc., 1999