EL5285CS ELANTEC [Elantec Semiconductor], EL5285CS Datasheet

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EL5285CS

Manufacturer Part Number
EL5285CS
Description
Dual and Window 4ns High-Speed Comparators
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
• 4ns typ. propagation delay
• 5V to 12V input supply
• +2.7V to +5V output supply
• True-to-ground input
• Rail-to-rail outputs
• Separate analog and digital
• Active low latch
• Single available (EL5185C)
• Quad available (EL5485C &
• Pin-compatible 6ns family
• Threshold detection
• High speed sampling circuits
• High speed triggers
• Line receivers
• PWM circuits
• High speed V/F converters
EL5285CS
EL5285CS-T7
EL5285CS-T13
supplies
EL5486C)
available (EL5x81C, EL5283C &
EL5482C)
Part No.
14-Pin SOIC
14-Pin SOIC
14-Pin SOIC
Package
Tape & Reel
13”
7”
-
MDP0027
MDP0027
MDP0027
Outline #
EL5285C - Preliminary
Dual and Window 4ns High-Speed Comparators
General Description
The EL5285C 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 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 EL5285C can be used to hold the comparator
output value by applying a low logic level to the pin. The EL5285C
features two separate comparators
The EL5285C 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 (EL5185C) and quad versions (EL5485C and
EL5486C.)
Pin Configurations
INA+
INB+
INA-
INB-
VS+
VS-
NC
1
2
3
4
5
6
7
EL5285C
(14-Pin SO)
+
+
-
-
14
13
12
11
10
9
8
VSD
OUTA
LATCHA
NC
LATCHB
OUTB
GND
S
+ and V
S
-.

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EL5285CS Summary of contents

Page 1

... EL5285CS-T7 14-Pin SOIC 7” MDP0027 EL5285CS-T13 14-Pin SOIC 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

EL5285C - Preliminary Dual and Window 4ns High-Speed Comparators 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. ...

Page 3

Typical Performance Curves Supply Current vs Supply Voltage (per comparator =50mV IN R =2. ±V (V) S Offset Voltage vs Temperature ...

Page 4

EL5285C - Preliminary Dual and Window 4ns High-Speed Comparators Typical Performance Curves Propagation Delay vs Overdrive V =5V IN STEP 7.8 7 7.4 7 6.8 6.6 6.4 0.2 0.6 1 1.4 1.8 V ...

Page 5

Typical Performance Curves Propagation Delay vs Load Capacitance V =1V IN STEP 9 V =±5V S 8 =50mV =2. ...

Page 6

EL5285C - Preliminary Dual and Window 4ns High-Speed Comparators Pin Descriptions 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 ...

Page 7

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 ...

Page 8

EL5285C - Preliminary Dual and Window 4ns High-Speed Comparators Applications Information Power Supplies and Circuit Layout The EL5285C comparator operates with single and dual supply with 5V to 12V between V + and V S put side of the comparator ...

Page 9

Select the threshold voltage V and calculate The current through R /R bias string must be many times greater than the input bias current of the comparator ------------------- ...

Page 10

EL5285C - Preliminary Dual and Window 4ns High-Speed Comparators output changes state. The non-inverting and inverting inputs may be reversed OUT V - REF Crystal Oscillator A simple crystal oscillator using one comparator of an EL5285C ...

Page 11

EL5285C - Preliminary Dual and Window 4ns High-Speed Comparators 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 ...

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