EL5181C Elantec Semiconductor, EL5181C Datasheet

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EL5181C

Manufacturer Part Number
EL5181C
Description
8ns High-Speed Comparator
Manufacturer
Elantec Semiconductor
Datasheet

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
EL5181CS
Manufacturer:
INTERSIL
Quantity:
20 000
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.
Features
Applications
Ordering Information
• 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
• Dual Available (EL5281C)
• Window Comparator (EL5283C)
• Quad Available (EL5481C &
• Pin-compatible 4ns Family
• Threshold Detection
• High Speed Sampling Circuits
• High Speed Triggers
• Line Receivers
• PWM Circuits
• High Speed V/F Converters
EL5181CS
EL5181CS-T7
EL5181CS-T13
EL5482C)
Available (EL5x85C, EL5287C &
EL5486C)
Part No.
Package
8-Pin SO
8-Pin SO
8-Pin SO
Tape & Reel
13”
7”
-
MDP0027
MDP0027
MDP0027
Outline #
EL5181C
8ns High-Speed Comparator
General Description
The EL5181C comparator is designed for operation in single supply
and dual supply applications with 5V to 12V between V
For single supplies, the inputs can operate from 0.1V below ground for
use in ground sensing applications.
The output side of the comparator 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 EL5181C can be used to hold the comparator
output value by applying a low logic level to the pin.
The EL5181C is available in the 8-pin SO package and is specified for
operation over the full -40°C to +85°C temperature range. Also avail-
able are a dual (EL5281C), a window comparator (EL5283C), and
quad versions (EL5481C and EL5482C).
Pin Configuration
VS+
VS-
IN+
IN-
1
2
3
4
EL5181CS
+
-
(8-Pin SO)
A
C
H
L
T
8
7
6
5
OUT
GND
LATCH
VSD
S
+ and V
S
-.

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EL5181C Summary of contents

Page 1

... The rail-to-rail output swing enables direct connection of the comparator to both CMOS and TTL logic circuits. The latch input of the EL5181C can be used to hold the comparator output value by applying a low logic level to the pin. The EL5181C is available in the 8-pin SO package and is specified for operation over the full -40° ...

Page 2

... EL5181C 8ns High-Speed Comparator Absolute Maximum Ratings Absolute maximum ratings are those values beyond which the device could be permanently damaged. Absolute maximum ratings are stress ratings only and functional device operation is not implied. Analog Supply Voltage ( Digital Supply Voltage (V ...

Page 3

... Negative Supply Current vs Negative Supply Voltage 5 =50mV IN T =25°C A 4 Offset Voltage vs Temperature 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 -0.1 -0.2 -0 -50 -30 3 EL5181C 8ns High-Speed Comparator - Temperature (° ( Temperature (°C) ...

Page 4

... EL5181C 8ns High-Speed Comparator Typical Performance Curves Propagation Delay vs Overdrive 10 V =±5V S 9 =1V Step =2. 6 100 200 300 400 V (mV) OD Propagation Delay vs Supply Voltage 9.5 V =1V Step IN V =50mV =2. ...

Page 5

... SD 0.2 0 Output with 30MHz Input V = =± 20ns 5 EL5181C 8ns High-Speed Comparator V =± = =50mV T =-40° =25° =85° Load Current (mA 100 125 150 Ambient Temperature (° ...

Page 6

... EL5181C 8ns High-Speed Comparator Timing Diagram Compare Latch Enable Input Latch Differential Input Voltage V IN Comparator Output Definition of Terms Term V Input Offset Voltage - Voltage applied between the two input terminals to obtain CMOS logic threshold at the output OS V Input Voltage Pulse Amplitude - Usually set to 1V for comparator specifications ...

Page 7

... IN+ Positive input 3 IN- Negative input 4 VS- Negative supply voltage 5 LATCH Latch input 6 GND Digital ground 7 OUT Output 8 VSD Digital Supply 8ns High-Speed Comparator Function IN- (Reference Circuit 1) LATCH 7 EL5181C Equivalent Circuit IN Circuit Circuit OUT V - ...

Page 8

... 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. Input Voltage Considerations The EL5181C input range is specified from 0.1V below 2.25V below V +. The criterion for the input S ...

Page 9

... T is the maximum ambient temperature MAX is the thermal resistance of the package JA Threshold Detector The inverting input is connected to a reference voltage and the non-inverting input is connected to the input. As the input passes the V 9 EL5181C 8ns High-Speed Comparator DISS ...

Page 10

... DC average voltage based on the output. The crystal's path provides resonant positive feedback and stable oscillation occurs. Although the EL5181C will give the correct logic output when an input is out- side the common mode range, additional delays may occur when operated. Therefore, the DC bias ...

Page 11

... EL5181C 8ns High-Speed Comparator General Disclaimer Specifications contained in this data sheet are in effect as of the publication date shown. Elantec, Inc. reserves the right to make changes in the cir- cuitry or specifications contained herein at any time without notice. Elantec, Inc. assumes no responsibility for the use of any circuits described herein and makes no representations that they are free from patent infringement ...

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