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Analog Devices Semiconductor Electronic Components Datasheet

AD8611 Datasheet

Ultrafast 4 ns Single Supply Comparators

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Data Sheet
FEATURES
4 ns propagation delay at 5 V
Single-supply operation: 3 V to 5 V
100 MHz input
Latch function
APPLICATIONS
High speed timing
Clock recovery and clock distribution
Line receivers
Digital communications
Phase detectors
High speed sampling
Read channel detection
PCMCIA cards
Zero-crossing detector
High speed analog-to-digital converter (ADC)
Upgrade for LT1394 and LT1016 designs
GENERAL DESCRIPTION
The AD8611/AD8612 are single and dual 4 ns comparators
with latch function and complementary output. The latch is not
functional if VCC is less than 4.3 V.
Fast 4 ns propagation delay makes the AD8611/AD8612 good
choices for timing circuits and line receivers. Propagation delays
for rising and falling signals are closely matched and tracked over
temperature. This matched delay makes the AD8611/AD8612
good choices for clock recovery because the duty cycle of the
output matches the duty cycle of the input.
Ultrafast, 4 ns
Single-Supply Comparators
AD8611/AD8612
PIN CONFIGURATIONS
V+ 1
8 QA
IN+ 2 AD8611 7 QA
IN– 3 TOP VIEW 6 GND
V– 4 (Not to Scale) 5 LATCH
Figure 1. 8-Lead Narrow Body SOIC
(R-8)
V+ 1
IN+ 2
IN– 3
V– 4
AD8611
TOP VIEW
(Not to Scale)
8 QA
7 QA
6 GND
5 LATCH
Figure 2. 8-Lead MSOP
(RM-8)
QA 1
QA 2
GND 3
LEA 4
V– 5
INA– 6
INA+ 7
14 QB
AD8612
TOP VIEW
(Not to Scale)
13 QB
12 GND
11 LEB
10 V+
9 INB–
8 INB+
Figure 3. 14-Lead TSSOP
(RU-14)
The AD8611 has the same pinout as the LT1016 and LT1394,
with lower supply current and a wider common-mode input
range, which includes the negative supply rail.
The AD8611/AD8612 are specified over the industrial temper-
ature range (−40°C to +85°C). The AD8611 is available in both
8-lead MSOP and narrow 8-lead SOIC surface-mount packages.
The AD8612 is available in a 14-lead TSSOP surface-mount
package.
Rev. B
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responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
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One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 ©2000–2016 Analog Devices, Inc. All rights reserved.
Technical Support
www.analog.com


Analog Devices Semiconductor Electronic Components Datasheet

AD8611 Datasheet

Ultrafast 4 ns Single Supply Comparators

No Preview Available !

AD8611/AD8612
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications....................................................................................... 1
Pin Configurations ........................................................................... 1
General Description ......................................................................... 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
Absolute Maximum Ratings............................................................ 5
Thermal Resistance ...................................................................... 5
ESD Caution.................................................................................. 5
Pin Configurations and Function Descriptions ........................... 6
Typical Performance Characteristics ............................................. 7
Applications Information .............................................................. 10
REVISION HISTORY
12/2016—Rev. A to Rev. B
Changes to Input Voltage Parameter, Table 3 ............................... 5
Added Input Current Parameter, Table 3 ...................................... 5
Deleted Endnote 1, Table 3.............................................................. 5
Updated Outline Dimensions ....................................................... 17
Changes to Ordering Guide .......................................................... 18
8/2006—Rev. 0 to Rev. A
Updated Format..................................................................Universal
Added No Latch if VCC < 4.3 V .........................................Universal
Changes to Pin Names .......................................................Universal
Added Pin Configurations and Function Descriptions Page ..... 6
Changes to Table 8.......................................................................... 12
Changes to Figure 26...................................................................... 12
Changes to Ordering Guide .......................................................... 17
4/2000—Revision 0: Initial Version
Data Sheet
Optimizing High Speed Performance ..................................... 10
Upgrading the LT1394 and LT1016......................................... 10
Maximum Input Frequency and Overdrive............................ 10
Output Loading Considerations............................................... 10
Using the Latch to Maintain a Constant Output.................... 11
Input Stage and Bias Currents .................................................. 11
Using Hysteresis ......................................................................... 11
Clock Timing Recovery............................................................. 12
A 5 V, High Speed Window Comparator................................ 12
Outline Dimensions ....................................................................... 16
Ordering Guide .......................................................................... 17
Rev. B | Page 2 of 20


Part Number AD8611
Description Ultrafast 4 ns Single Supply Comparators
Maker Analog Devices
Total Page 20 Pages
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