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EL5283C 데이터시트 PDF




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부품번호 EL5283C 기능
기능 Dual and Window 8ns High-Speed Comparators
제조업체 Elantec Semiconductor
로고 Elantec Semiconductor 로고


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EL5283C 데이터시트, 핀배열, 회로
EL5283C - Preliminary
Dual and Window 8ns High-Speed Comparators
Features
• 8ns typ. propagation delay
• 5V to 12V input supply
• +2.7V to +5V output supply
• True-to-ground input
• Rail-to-rail outputs
• Active low latch
• Single available (EL5181C)
• Quad available (EL5481C &
EL5482C)
• Pin-compatible 4ns family
available (EL5x85C, EL5287C &
EL5486C)
Applications
• Threshold detection
• High speed sampling circuits
• High speed triggers
• Line receivers
• PWM circuits
• High speed V/F converters
Ordering Information
Part No.
EL5283CY
EL5283CY-T13
Package
10-Pin MSOP
10-Pin MSOP
Tape & Reel
-
13”
Outline #
MDP0043
MDP0043
General Description
The EL5283C comparator is designed for operation in single supply
and dual supply applications with 5V to 12V between VS+ and VS-.
For single supplies, the inputs can operate from 0.1V below ground for
use in ground-sensing applications.
The output side of the comparators can be supplied from a single sup-
ply of 2.7V to 5V. The rail-to-rail output swing enables direct
connection of the comparator to both CMOS and TTL logic circuits.
The latch input of the EL5283C can be used to hold the comparator
output value by applying a low logic level to the pin.
The EL5283C contains two comparators set up as a window compara-
tor. A single input is compared with a high and low reference. When
the output goes beyond one of these reference signals, the relevant out-
put goes high.
The EL5283C in the 10-pin MSOP package and is specified for opera-
tion over the full -40°C to +85°C temperature range. Also available
are a single (EL5181C) and quad versions (EL5481C and EL5482C).
Pin Configurations
VS+ 1
10 VSD
VREFH 2
IN 3
VREFL 4
+
-
+
-
9 OUTH
8 LATCH
7 OUTL
VS- 5
6 GND
EL5283C
(10-Pin MSOP)
Note: All information contained in this data sheet has been carefully checked and is believed to be accurate as of the date of publication; however, this data sheet cannot be a “controlled document”. Current revisions, if any, to these
specifications are maintained at the factory and are available upon your request. We recommend checking the revision level before finalization of your design documentation.
© 2001 Elantec Semiconductor, Inc.




EL5283C pdf, 반도체, 판매, 대치품
EL5283C - Preliminary
Dual and Window 8ns High-Speed Comparators
Typical Performance Curves
Propagation Delay vs Overdrive
VIN=1V Step
10
9.5
VS=±5V
VSD=5V
9 VIN=1V Step
8.5 RL=2.2k
8 Tpd+
7.5
7 Tpd-
6.5
6
5.5
5
0 100 200 300
VOD (mV)
400
500
Propagation Delay vs Supply Voltage
VIN=1V Step
10
9.5
VSD=VS+
VIN=1V Step
9 VOD=50mV
8.5 RL=2.2k
8 Tpd+
7.5
7
6.5 Tpd-
6
5.5
5
4 4.5 5
±VS (V)
5.5
Propagation Delay vs Overdrive
VIN=5VP-P Step
11
VS=±5V
10.5 VSD=5V
10
RL=2.2k
VIN=5V Step
9.5 Tpd+
9
8.5 Tpd-
8
7.5
7
0 0.5 1 1.5
VOD (V)
2
2.5
600
6
3
Propagation Delay vs Load Capacitance
VIN=1V Step
12
VS=±5V
11
VSD=5V
RL=2.2k
VIN=1V Step
10 VOD=50mV
Tpd+
9
8 Tpd-
7
6
0 20 40 60 80
CLOAD (pF)
100 120
Propagation Delay vs Overdrive
VIN=3VP-P Step
10
VS=±5V
9.5 VSD=5V
VIN=1V Step
9 RL=2.2k
8.5
Tpd+
8
7.5
Tpd-
7
6.5
6
0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8
VOD (mV)
2
Propagation Delay vs Source Resistance
VIN=1V Step
20
VS=±5V
18 VSD=5V
16
RL=2.2k
VIN=1V Step
14 VOD=50mV
Tpd+
12
10
8 Tpd-
6
4
0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6
Source Resistance (k)
4

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EL5283C 전자부품, 판매, 대치품
EL5283C - Preliminary
Dual and Window 8ns High-Speed Comparators
Pin Descriptions
Pin Number
1
2
Pin Name
VS+
VREFH
Function
Positive supply voltage
Upper voltage reference
Equivalent Circuit
VS+
VREF
IN
3 IN Input
4
VREFL
Lower voltage reference
5 VS- Negative supply voltage
6
GDN
Digital ground
7
OUTL
Low output
8
LATCH
Latch
9
OUTH
High output
10
VSD
Digital supply voltage
Applications Information
Power Supplies and Circuit Layout
The EL5283C comparator operates with single and dual
supply with 5V to 12V between VS+ and VS-. The out-
put side of the comparators is supplied by a single
supply from 2.7V to 5V. The rail to rail output swing
enables direct connection of the comparator to both
CMOS and TTL logic circuits. As with many high speed
devices, the supplies must be well bypassed. Elantec rec-
ommends a 4.7µF tantalum in parallel with a 0.1µF
ceramic. These should be placed as close as possible to
the supply pins. Keep all leads short to reduce stray
capacitance and lead inductance. This will also mini-
mize unwanted parasitic feedback around the
comparator. The device should be soldered directly to
the PC board instead of using a socket. Use a PC board
with a good, unbroken low inductance ground plane.
Good ground plane construction techniques enhance sta-
bility of the comparators.
(Reference Circuit 4)
(Reference Circuit 4)
Circuit 4
(Reference Circuit 2)
(Reference Circuit 3)
(Reference Circuit 2)
VS-
Input Voltage Considerations
The EL5283C input range is specified from 0.1V below
VS- to 2.25V below VS+. The criterion for the input
limit is that the output still responds correctly to a small
differential input signal. The differential input stage is a
pair of PNP transistors, therefore, the input bias current
flows out of the device. When either input signal falls
below the negative input voltage limit, the parasitic PN
junction formed by the substrate and the base of the PNP
will turn on, resulting in a significant increase of input
bias current. If one of the inputs goes above the positive
input voltage limit, the output will still maintain the cor-
rect logic level as long as the other input stays within the
input range. However, the propagation delay will
increase. When both inputs are outside the input voltage
range, the output becomes unpredictable. Large differ-
ential voltages greater than the supply voltage should be
avoided to prevent damages to the input stage. Inputs of
unused channels should not be left floating. They should
be driven to a known state. For example, one input can
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관련 데이터시트

부품번호상세설명 및 기능제조사
EL5283C

Dual and Window 8ns High-Speed Comparators

Elantec Semiconductor
Elantec Semiconductor
EL5283CY

Dual and Window 8ns High-Speed Comparators

Elantec Semiconductor
Elantec Semiconductor

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