Quad 7 ns
Single Supply Comparator
AD8564
Rev. B
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FEATURES
5 V single-supply operation
7 ns propagation delay
Low power
Separate input and output sections
TTL/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
PCMCIA cards
Upgrade for MAX901 designs
PIN CONFIGURATIONS
+IN A
GND
OUT A
+IN D
V
+ANA
OUT D
–IN D
–IN A
V
+DIG
+IN C
–IN C
OUT C
+IN B
–IN B
OUT B
V
–ANA
116
89
AD8564
1103-003
Figure 1. 16-Lead TSSOP
(RU-16)
AD8564
–IN A
+IN A
GND
OUT A
OUT B
V
–ANA
+IN B
–IN B
–IN D
+IN D
V
+ANA
OUT D
OUT C
V
+DIG
+IN C
–IN C
01103-001
Figure 2. 16-Lead Narrow Body SOIC
(R-16)
14
13
12
11
16
15
10
9
8
1
2
3
4
7
6
5
–IN A
OUT D
+IN D
–IN D
+IN A
GND
OUT A
+IN C
OUT COUT B
+IN B
–IN B
–IN C
+
–
AD8564
V
–ANA
V
+ANA
V
+DIG
+
–
+
–
+
–
01103-002
Figure 3. 16-Lead PDIP
(N-16)
GENERAL DESCRIPTION
The AD8564 is a 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 maintaining 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 single comparator with
latch function, refer to the
AD8561 data sheet.
The AD8564 is specified over the industrial temperature range
(−40°C to +125°C). The quad AD8564 is available in the 16-lead
TSSOP, 16-lead narrow body SOIC, and 16-lead plastic DIP
packages.
