Datasheet AD8611, AD8612 (Analog Devices)

Ultrafast, 4 ns Single-Supply Comparators Data Sheet AD8611/ AD8612 FEATURES PIN CONFIGURATIONS 4 ns propagation delay at 5 V V+ 1 8 QA Single-supply operation: 3 V to 5 V IN+ 2 AD8611 7 QA 100 MHz input IN– 3 6 TOP VIEW GND (Not to Scale)
001
Latch function V– 4 5 LATCH
06010-
APPLICATIONS
Figure 1. 8-Lead Narrow Body SOIC (R-8)
High speed timing V+ 1 8 QA Clock recovery and clock distribution IN+ AD8611 2 7 QA Line receivers TOP VIEW IN– 3 6 GND (Not to Scale) Digital communications
002
V– 4 5 LATCH Phase detectors
06010- Figure 2. 8-Lead MSOP
High speed sampling
(RM-8)
Read channel detection PCMCIA cards QA 1 14 QB Zero-crossing detector QA 2 13 QB High speed analog-to-digital converter (ADC) GND 3 AD8612 12 GND Upgrade for LT1394 and LT1016 designs TOP VIEW LEA 4 11 LEB (Not to Scale) V– 5 10 V+ INA– 6 9 INB–
003
INA+ 7 8 INB+
06010- Figure 3. 14-Lead TSSOP (RU-14)
GENERAL DESCRIPTION
The AD8611/AD8612 are single and dual 4 ns comparators The AD8611 has the same pinout as the LT1016 and LT1394, with latch function and complementary output. The latch is not with lower supply current and a wider common-mode input functional if VCC is less than 4.3 V. range, which includes the negative supply rail. Fast 4 ns propagation delay makes the AD8611/AD8612 good The AD8611/AD8612 are specified over the industrial temper- choices for timing circuits and line receivers. Propagation delays ature range (−40°C to +85°C). The AD8611 is available in both for rising and fal ing signals are closely matched and tracked over 8-lead MSOP and narrow 8-lead SOIC surface-mount packages. temperature. This matched delay makes the AD8611/AD8612 The AD8612 is available in a 14-lead TSSOP surface-mount good choices for clock recovery because the duty cycle of the package. output matches the duty cycle of the input.
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Document Outline FEATURES APPLICATIONS PIN CONFIGURATIONS GENERAL DESCRIPTION REVISION HISTORY SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE ESD CAUTION PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS APPLICATIONS INFORMATION OPTIMIZING HIGH SPEED PERFORMANCE UPGRADING THE LT1394 AND LT1016 MAXIMUM INPUT FREQUENCY AND OVERDRIVE OUTPUT LOADING CONSIDERATIONS USING THE LATCHTO MAINTAIN A CONSTANT OUTPUT INPUT STAGE AND BIAS CURRENTS USING HYSTERESIS CLOCK TIMING RECOVERY A 5 V, HIGH SPEED WINDOW COMPARATOR OUTLINE DIMENSIONS ORDERING GUIDE