intersil EL5285 DATA SHEET

查询EL5285CS供应商

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Data Sheet January 18, 2002

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EL5285

FN7190

Dual 4ns High-Speed Comparator

The EL5285 comparator is designed
for operation in single supply and dual
supply applications with 5V to 12V

between V

+ and VS-. For single supplies, the inputs can

S

operate from 0.1V below ground for use in ground sensing
applications.

The output side of the comparators can be supplied from a
single supply 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 EL5285 can be used to hold the
comparator output value by applying a low logic level to the
pin. The EL5285 features two separate comparators

The EL5285 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 (EL5185),
window comparator (EL5287), and quad versions (EL5485
and EL5486).

Pinout

EL5285

(14-PIN SO)

TOP VIEW

Features

• 4ns 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 (EL5185)

• Window available (EL5287)

• Quad available (EL5485 & EL5486)

• Pin-compatible 8ns family available (EL5x81, EL5283 &
EL5482)

Applications

• Threshold detection

• High speed sampling circuits

• High speed triggers

• Line receivers

• PWM circuits

• High speed V/F converters

VS+

INA+

INA-

NC

INB+

INB-

VS-

1

2

+

-

3

4

5

+

6

-

7

14

13

12

11

10

9

8

VSD

OUTA

LATCHA

NC

LATCHB

OUTB

GND

Ordering Information

PART NUMBER PACKAGE TAPE & REEL PKG. NO.

EL5285CS 14-Pin SO - MDP0027
EL5285CS-T7 14-Pin SO 7” MDP0027
EL5285CS-T13 14-Pin SO 13” MDP0027

1

Copyright © Intersil Americas Inc. 2003. All Rights Reserved. Elantec is a registered trademark of Elantec Semiconductor, Inc.

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

1-888-INTERSIL or 321-724-7143

| Intersil (and design) is a registered trademark of Intersil Americas Inc.

All other trademarks mentioned are the property of their respective owners.

EL5285

Absolute Maximum Ratings (T

Analog Supply Voltage (V
Digital Supply Voltage (V

Differential Input Voltage . . . . . . . . . . .[(V

Common-mode Input Voltage . . . . . . .[(V

Latch Input Voltage . . . . . . . . . . . . . . . . . . . . -0.2V to [(V

CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the
device at these or any other conditions above those indicated in the operational sections of this specification is not implied.

IMPORTANT NOTE: All parameters having Min/Max specifications are guaranteed. Typical values are for information purposes only. Unless otherwise noted, all tests
are at the specified temperature and are pulsed tests , therefore: T

+ to VS-) . . . . . . . . . . . . . . . . . . . +12.6V

S

to GND). . . . . . . . . . . . . . . . . . . . . .+7V

SD

Electrical Specifications V

= 25°C)

A

Storage Temperature Range . . . . . . . . . . . . . . . . . .-65°C to +150°C

Ambient Operating Temperature . . . . . . . . . . . . . . . .-40°C to +85°C

-) -0.2V] to [(VS+) +0.2V]

S

-) -0.2V] to [(VS+) +0.2V]

S

= ±5V, VSD = 5V, RL = 2.3kΩ, TA = 25°C, unless otherwise specified.

S

+0.2V]

SD)

= TC = T

J

A

Operating Junction Temperature . . . . . . . . . . . . . . . . . . . . . . .125°C

Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Curves

PARAMETER DESCRIPTION CONDITION MIN TYP MAX UNIT

INPUT

V

OS

I

B

C

IN

I

OS

V

CM

CMRR Common-mode Rejection Ratio -5.1V < V

Input Offset Voltage V

= 0V, VO = 2.5V 1 4 mV

CM

Input Bias Current -10 -5 µA
Input Capacitance 5pF
Input Offset Current V

= 0V, VO = 2.5V -2.5 0.5 2.5 µA

CM

Input Voltage Range (VS-) - 0.1 (VS+) - 2.25 V

< +2.75V 65 90 dB

CM

OUTPUT

V

OH

V

OL

Output High Voltage V
Output Low Voltage V

> 250mV VSD - 0.6 VSD - 0.4 V

IN

> 250mV GND + 0.25 GND + 0.5 V

IN

DYNAMIC PERFORMANCE

t

+ Positive Going Delay Time VIN = 1V

pd

tpd- Negative Going Delay Time VIN = 1V

, VOD = 50mV 4 6 ns

P-P

, VOD = 50mV 4 6 ns

P-P

SUPPLY

I

+ Positive Analog Supply Current Per comparator 12 13.5 mA

S

IS- Negative Analog Supply Current Per comparator 7.5 8.5 mA
I

SD

Digital Supply Current at No Load Per comparator, output high 5.5 6.5 mA

Per comparator, output low 0.9 1.2 mA

PSRR Power Supply Rejection Ratio 55 80 dB

LATCH

V

LH

V

LL

I

LH

I

LL

+ Latch Disable to High Delay 6 ns

t

d

t

- Latch Disable to Low Delay 6 ns

d

t

s

t

h

t

(D) Minimum Latch Disable Pulse

pw

Latch Input Voltage High 2.0 V
Latch Input Voltage Low 0.8 V
Latch Input Current High V
Latch Input Current Low V

= 3.0V -30 -18 µA

LH

= 0.3V -30 -24 µA

LL

Minimum Setup Time 2 ns
Minimum Hold Time 1ns

10 ns

Width

2

Typical Performance Curves

EL5285

Supply Current vs Supply Voltage

14

VIN=-50mV
RL=2.3kΩ

12

10

8

(mA)

S

6

I

4

2

0

0123456

Offset Voltage vs Temperature

2.5

2

1.5

1

(mV)

OS

V

0.5

0

-0.5

-50 -30 10 30 50 70 90

IS+

IS-

±VS (V)

-10
Temperature (°C)

Output High Voltage vs Temperature

5

4.8

4.6

(V)

OH

V

4.4

4.2

4

-50 -30 10 30 50 70 90

Input Bias Current vs Temperature
9
8
7
6
5

IB (µA)

4
3
2
1

-50 -30 30 50 90

-10
Temperature (°C)

-10 10 70
Temperature (°C)

Output Low Voltage vs Temperature

0.4

0.3

(V)

OL

V

0.2

0.1

-50 -30 10 30 50 70 90

-10
Temperature (°C)

Supply Current vs Temperature (per comparator)

14

12

10

8

6

4

Supply Current (mA)

2

0

-50 -30 10 30 50 70 90

IS+

IS-

-10
Temperature (°C)

3