October 1998

9-13

MIC6270

Micrel

9

MIC6270

IttyBitty™ Comparator

Advance Information

General Description

The MIC6270 is a precision voltage comparator with an offset

voltage specification of 5mV maximum.

The MIC6270 is designed to operate from a single 2V to 36V

power supply. Operation from split power supplies is also

possible. Its low supply current drain is independent of the

magnitude of the supply voltage.

This comparator also features an input common-mode volt-

age range that includes ground. Inputs are protected against

reverse polarity (input voltage less than V–) and ESD.

The MIC6270 has an open-collector output that directly

interfaces with TTL, CMOS, and other types of logic. Several

MIC6270 outputs can be connected together for wired-OR

logic. The output also features an internal pull-up current

source that can be used instead of an external load in some

applications.

Functional Configuration

OUT

V+

IN–

IN+

1

3

45

2

V–

SOT-23-5 (M5)

Features

• 2V to 36V supply

• 300

µA supply current independent of supply

• 25nA input bias current

•

±5nA input offset current

•

±3mV input offset voltage

• Input common-mode voltage range includes ground

• Differential input voltage range equal to the power

supply voltage

• 250mV at 4mA output saturation voltage

• Output compatible with TTL, DTL, ECL, MOS, and

CMOS logic

Applications

• Limit comparators

• A/D converters

• Pulse, square wave, time delay generators

• Wide range VCO

• MOS clock timers

• Multivibrators and high-voltage digital logic gates

Pin Description

Pin Number

Pin Name

Pin Function

1

OUT

Comparator Output:

2

V–

Negative Supply: Negative supply for split supply application or ground for

single supply application.

3

IN+

Noninverting Input:

4

IN–

Inverting Input:

5

V+

Positive Supply:

Pin Configuration

Part

Identification

OUT

V+

IN–

IN+

B10

1

3

45

2

V–

SOT-23-5 (M5)

Ordering Information

Part Number

Temperature Range

Package

MIC6270BM5

–40

°C to +85°C

SOT-23-5