EL5281CS ELANTEC [Elantec Semiconductor], EL5281CS Datasheet

no-image

EL5281CS

Manufacturer Part Number
EL5281CS
Description
Dual 8ns High-Speed Comparator
Manufacturer
ELANTEC [Elantec Semiconductor]
Datasheet
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
• Single Available (EL5181C)
• 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
EL5281CS
EL5281CS-T7
EL5281CS-T13
EL5482C)
Available (EL5x85C, EL5287C &
EL5486C)
Part No.
14-Pin SO
14-Pin SO
14-Pin SO
Package
Tape & Reel
13”
7”
-
MDP0027
MDP0027
MDP0027
Outline #
EL5281C
Dual 8ns High-Speed Comparator
General Description
The EL5281C 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 EL5281C can be used to hold the comparator
output value by applying a low logic level to the pin. The EL5281C
features two separate comparators.
The EL5281C is available in the 14-pin SO package and is specified
for operation over the full -40°C to +85°C temperature range. Also
available are a single (EL5181C) and quad versions (EL5481C and
EL5482C).
Pin Configuration
INA+
INB+
INA-
INB-
VS+
VS-
NC
1
2
3
4
5
6
7
EL5281C
14-Pin SO
+
+
-
-
14
13
12
11
10
9
8
VSD
OUTA
LATCHA
NC
LATCHB
OUTB
GND
S
+ and V
S
-.

Related parts for EL5281CS

EL5281CS Summary of contents

Page 1

... EL5281CS-T7 14-Pin SO 7” MDP0027 EL5281CS-T13 14-Pin SO 13” MDP0027 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. © ...

Page 2

EL5281C Dual 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 (V ...

Page 3

Typical Performance Curves Positive Supply Current vs Temperature 7.15 7.1 7.05 7 6.95 6.9 6.85 6.8 6.75 6.7 -50 -30 - Temperature (°C) Positive Supply Current vs Supply Voltage 7 V -=- = ...

Page 4

EL5281C Dual 8ns High-Speed Comparator Typical Performance Curves Propagation Delay vs Overdrive 10 V =±5V S 9 =1V Step =2. 6.5 6 ...

Page 5

Typical Performance Curves Output Low Voltage vs Load Current 0.31 T =85°C A 0.27 T =25°C A 0.23 T =-40°C 0. Load Current (mA) Digital Supply Current vs Input Switching Frequency 30 VS=±5V 25 ...

Page 6

EL5281C Dual 8ns High-Speed Comparator Timing Diagram Compare Latch Enable Input Latch Differential Input Voltage V IN Comparator Output Definition of Terms Terms V Input Offset Voltage - Voltage applied between the two input terminals to obtain CMOS logic threshold ...

Page 7

Pin Descriptions - EL5281C (14-Pin SO) Pin Number Pin Name 1 VS+ Positive supply current 2 INA+ Positive input, channel A 3 INA- Negative input, channel Not connected 5 INB+ Negative input, channel B 6 INB- ...

Page 8

EL5281C Dual 8ns High-Speed Comparator Applications Information Power Supplies and Circuit Layout The EL5281C comparator operates with single and dual supply with 5V to 12V between V + and V S put side of the comparator is supplied by a ...

Page 9

R adds a portion of the output to the threshold set and R . The calculation of the resistor values are as 2 follows: Select the threshold voltage V and calculate The current ...

Page 10

EL5281C Dual 8ns High-Speed Comparator 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 threshold, the comparator's REF output changes state. The non-inverting ...

Page 11

EL5281C Dual 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 ...

Related keywords