CA3290 - BiMOS Dual Voltage Comparators

Product Overview

Intersil

Part number	CA3290
Manufacturer	Intersil
File Size	347.89 KB
Description	BiMOS Dual Voltage Comparators
Datasheet	CA3290 Datasheet
Additional preview pages of the CA3290 datasheet.

Figure 4 shows the basic circuit diagram for one of the two comparators in the CA3290.

It is generically similar to the industry type “139” comparators, with PMOS transistors replacing PNP transistors as input stage elements.

MOSFET Input Stage - Very High Input Impedance (ZIN).
. . . 1.7TΩ (Typ) - Very Low Input Current at V+ = 5V.
. . 3.5pA (Typ) - Wide Common Mode Input Voltage Range (VICR) Can Be Swung 1.5V (Typ) Below Negative Supply Voltage Rail - Virtually Eliminates Errors Due to Flow of Input Currents.
Output Voltage Compatible with TTL, DTL, ECL, MOS, and CMOS Logic Systems in Most.

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Published: Aug 9, 2005 |