ca3290 Intersil Corporation, ca3290 Datasheet

ca3290

Manufacturer Part Number

ca3290

Description

Bimos Dual Voltage Comparators With Mosfet Input, Bipolar Output

Manufacturer

Intersil Corporation

Datasheet

1.CA3290.pdf (10 pages)

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Download datasheet (506Kb)

BiMOS Dual Voltage Comparators

with MOSFET Input, Bipolar Output

The CA3290A and CA3290 types consist of a dual voltage

comparator on a single monolithic chip. The common mode

input voltage range includes ground even when operated

from a single supply. The low supply current drain makes

these comparators suitable for battery operation; their

extremely low input currents allow their use in applications

that employ sensors with extremely high source

impedances. Package options are shown in the table below.

Pinout

Schematic Diagram

NON-INV. INPUT (A

INV. INPUT (A

OUTPUT (A

V-

)

CA3290/A (PDIP)

TOP VIEW

-V

50µA

Data Sheet

V+

OUTPUT (A

INV. INPUT (A

NON-INV. INPUT (A

100µA

COMPARATOR NO. 1

)

50µA

(ONLY ONE IS SHOWN)

1-888-INTERSIL or 321-724-7143

)

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

100µA

Features

• MOSFET Input Stage

• Output Voltage Compatible with TTL, DTL, ECL, MOS,

Applications

• High Source Impedance Voltage Comparators

• Long Time Delay Circuits

• Square Wave Generators

• A/D Converters

• Window Comparators

Part Number Information

CA3290AE

CA3290E

- Very High Input Impedance (Z

- Very Low Input Current at V+ = 5V. . . . . . . 3.5pA (Typ)

- Wide Common Mode Input Voltage Range (V

- Virtually Eliminates Errors Due to Flow of Input Currents

and CMOS Logic Systems in Most Applications

NUMBER

Swung 1.5V (Typ) Below Negative Supply Voltage Rail

PART

BIASING CIRCUIT

FOR CURRENT

100kΩ

SOURCES

1kΩ

5kΩ

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

V-

January 2004

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

V+

5pF

RANGE (

-55 to 125

TEMP

CA3290, CA3290A

COMP.

NO. 2

8 Ld PDIP

PACKAGE

) . . . . . . . . 1.7TΩ (Typ)

E8.3

FN1049.4

ICR

PKG. NO.

) Can Be

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