Quad 7 ns Single Supply Comparator AD8564
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 PIN CONFIGURATIONS
IN A +IN A GND OUT A OUT B VANA +IN B IN B 1 16 IN D +IN D V+ANA OUT D OUT C V+DIG +IN C IN C AD8564 8 9 Figure 1. 16-Lead TSSOP (RU-16)
IN A +IN A GND OUT A OUT B VANA +IN B IN B IN D +IN D V+ANA OUT D OUT C V+DIG
01103-001 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 +IN C IN C AD8564 Figure 2. 16-Lead Narrow Body SOIC (R-16)
IN A 1 +IN A 2
+ +
14 13 16 15 IN D +IN D V+ANA OUT D OUT C V+DIG +IN C IN C
01103-002 GND 3 OUT A 4 OUT B 5 VANA 6 +IN B 7 IN B 8 AD8564
+ + 12 11 10 9 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. Rev. B
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