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AD8611ARMZ-R2

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P20
Ultrafast, 4 ns
Single-Supply Comparators
Data Sheet
AD8611/AD8612
Rev. B Document Feedback
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 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.
Trademarks and registered trademarks are the property of their respective owners.
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
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
PIN CONFIGURATIONS
V+
IN+
V–
IN–
QA
QA
GND
LATCH
1
2
3
4
8
7
6
5
AD8611
T
OP
VIEW
(Not to Scale)
06010-001
Figure 1. 8-Lead Narrow Body SOIC
(R-8)
QA
V+
1
IN+
2
IN–
3
V–
4
8
QA
7
GND
6
LATCH
5
AD8611
TOP VIEW
(Not to Scale)
06010-002
Figure 2. 8-Lead MSOP
(RM-8)
GND
LEA
V–
INA–
INA+
GND
LEB
V+
INB–
INB+
QA
QA
QB
QB
1
2
3
4
5
6
7
AD8612
14
13
12
11
10
9
8
TOP
VIEW
(Not to Scale)
06010-003
Figure 3. 14-Lead TSSOP
(RU-14)
GENERAL DESCRIPTION
The AD8611/AD8612 are single and dual 4 ns comparators
with latch function and complementary output. The latch is not
functional if V
CC
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.
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.
AD8611/AD8612 Data Sheet
Rev. B | Page 2 of 20
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
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
REVISION HISTORY
12/2016—Rev. A to Re v. 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 Re v. A
Updated Format .................................................................. Universal
Added No Latch if V
CC
< 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 AD8611/AD8612
Rev. B | Page 3 of 20
SPECIFICATIONS
V+ = 5.0 V, V− = V
GND
= 0 V, T
A
= 25°C, unless otherwise noted.
Table 1.
Parameter Symbol Test Conditions/Comments Min Typ Max Unit
INPUT CHARACTERISTICS
Offset Voltage
OS
1
7
mV
−40°C ≤ T
A
≤ +85°C 8 mV
Offset Voltage Drift ΔV
OS
/ΔT 4 μV/°C
Input Bias Current I
B
V
CM
= 0 V –6 –4 μA
I
B
−40°C ≤ T
A
≤ +85°C –7 –4.5 μA
Input Offset Current
OS
V
CM
= 0 V
±4
μA
Input Common-Mode Voltage Range V
CM
0.0 3.0 V
Common-Mode Rejection Ratio CMRR 0 V ≤ V
CM
≤ 3.0 V 55 85 dB
Large Signal Voltage Gain A
VO
R
L
= 10 kΩ 3000 V/V
Input Capacitance C
IN
3.0 pF
LATCH ENABLE INPUT
Logic 1 Voltage Threshold V
IH
V
CC
> 4.3 V 2.0 1.65 V
Logic 0 Voltage Threshold V
IL
V
CC
> 4.3 V 1.60 0.8 V
Logic 1 Current I
IH
V
CC
> 4.3 V, V
LH
= 3.0 V –1.0 –0.3 μA
Logic 0 Current
IL
V
CC
> 4.3 V, V
LL
= 0.3 V
–5
–2.7
μA
Latch Enable
Pulse Width t
PW(E)
V
CC
> 4.3 V 3 ns
Setup Time t
S
V
CC
> 4.3 V 0.5 ns
Hold Time t
H
V
CC
> 4.3 V 0.5 ns
DIGITAL OUTPUTS
Logic 1 Voltage V
OH
I
OH
= 50 μA, ΔV
IN
> 250 mV 3.0 3.35 V
Logic 1 Voltage V
OH
I
OH
= 3.2 mA, ΔV
IN
> 250 mV 2.4 3.4 V
Logic 0 Voltage
OL
I
OL
= 3.2 mA, ΔV
IN
> 250 mV
0.25
0.4
V
DYNAMIC PERFORMANCE
Input Frequency f
MAX
400 mV p-p sine wave 100 MHz
Propagation Delay
P
200 mV step with 100 mV overdrive
1
4.0
5.5
ns
−40°C ≤ T
A
≤ +85°C 5 ns
Propagation Delay t
P
100 mV step with 5 mV overdrive 5 ns
Differential Propagation Delay
(Rising Propagation Delay vs.
Falling Propagation Delay)
Δt
P
100 mV step with 100 mV overdrive
1
0.5 2.0 ns
Rise Time 20% to 80% 2.5 ns
Fall Time 80% to 20% 1.1 ns
POWER SUPPLY
Power Supply Rejection Ratio PSRR 4.5 V ≤ V+ ≤ 5.5 V 55 73 dB
V+ Supply Current
2
I+ 5.7 10 mA
−40°C ≤ T
A
≤ +85°C 10
Ground Supply Current
2
I
GND
V
O
= 0 V, R
L
= ∞ 3.5 7 mA
−40°C ≤ T
A
≤ +85°C 7 mA
V− Supply Current
2
I− 2.2 4 mA
−40°C ≤ T
A
≤ +85°C 5 mA
1
Guaranteed by design.
2
Per comparator.
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P20

AD8611ARMZ-R2

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Manufacturer:
Analog Devices Inc.
Description:
Analog Comparators 8-Lead Ultra fast 4ns SGL Supply
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