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AD8612 데이터시트 PDF




Analog Devices에서 제조한 전자 부품 AD8612은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


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부품번호 AD8612 기능
기능 Ultrafast 4 ns Single Supply Comparators
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AD8612 데이터시트, 핀배열, 회로
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
Document Feedback
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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.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
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




AD8612 pdf, 반도체, 판매, 대치품
AD8611/AD8612
V+ = 3.0 V, V− = VGND = 0 V, TA = 25°C, unless otherwise noted.
Table 2.
Parameter
INPUT CHARACTERISTICS
Offset Voltage
Input Bias Current
Input Common-Mode Voltage Range
Common-Mode Rejection Ratio
OUTPUT CHARACTERISTICS
Output High Voltage
Output Low Voltage
LATCH ENABLE INPUT
POWER SUPPLY
Power Supply Rejection Ratio
Supply Currents
V+ Supply Current2
Symbol Test Conditions/Comments
VOS
IB
IB
VCM
CMRR
VCM = 0 V
−40°C ≤ TA ≤ +85°C
0 V ≤ VCM ≤ 1.0 V
VOH IOH = −3.2 mA, VIN > 250 mV
VOL IOL = +3.2 mA, VIN > 250 mV
Not functional if VCC < 4.3 V
PSRR
I+
2.7 V ≤ V+ ≤ 6 V
VO = 0 V, RL = ∞
−40°C ≤ TA ≤ +85°C
Ground Supply Current2
IGND −40°C ≤ TA ≤ +85°C
V– Supply Current2
DYNAMIC PERFORMANCE
Propagation Delay
I−
−40°C ≤ TA ≤ +85°C
tP 100 mV step with 20 mV overdrive3
1 Output high voltage without pull-up resistor. It can be useful to have a pull-up resistor to V+ for 3 V operation.
2 Per comparator.
3 Guaranteed by design.
Data Sheet
Min Typ Max Unit
1 7 mV
−6 −4.0
μA
−7 −4.5
μA
0 1.0 V
55 dB
1.21 V
0.3 V
46 dB
4.5 6.5 mA
10 mA
2.5 3.5 mA
5.5 mA
2 3.5 mA
4.8 mA
4.5 6.5 ns
Rev. B | Page 4 of 20

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AD8612 전자부품, 판매, 대치품
Data Sheet
TYPICAL PERFORMANCE CHARACTERISTICS
8
V+ = 5V
OVERDRIVE > 10mV
7
6
5
PD–
4
PD+
3
2
1
0
–50 –25
0 25 50
TEMPERATURE (°C)
75
Figure 7. Propagation Delay vs. Temperature
100
18
16
PD–
14
V+ = 5V
TA = 25°C
12
10
PD+
8
6
4
2
0
0 5 10 15 20
OVERDRIVE (mV)
Figure 8. Propagation Delay vs. Overdrive
25
8
V+ = 5V
7
TA = 25°C
OVERDRIVE > 10mV
6
5
PD–
PD+
4
3
2
1
0
0
20 40
60
CAPACITANCE (pF)
Figure 9. Propagation Delay vs. Load Capacitance
80
AD8611/AD8612
18
V+ = 5V
TA = 25°C
14 OVERDRIVE = 5mV
12
8
PD–
PD+
6
2
0
0 0.5 1.0 1.5 2.0 2.5
SOURCE RESISTANCE (kΩ)
Figure 10. Propagation Delay vs. Source Resistance
8
7
PD+
6
TA = 25°C
STEP = 100mV
OVERDRIVE > 10mV
5
PD–
4
3
2
1
0
2345
SUPPLY VOLTAGE (V)
Figure 11. Propagation Delay vs. Supply Voltage
6
35
TA = 25°C
STEP = 100mV
30 OVERDRIVE = 50mV
25
PD+
20
15
10
5
PD–
0
23456
COMMON-MODE VOLTAGE (V)
Figure 12. Propagation Delay vs. Common-Mode Voltage
Rev. B | Page 7 of 20

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