September 2001

1

MIC834

MIC834

Micrel

MIC834

Comparator with Reference

Final Information

Typical Application

INP

OUT

VDD

GND

MIC834

R1

R2

1.5V

≤ V

4

2

1

5

Features

• Optimized for PDAs, cellular telephones, pagers,

and other battery-powered devices

• Input and output can be pulled up to 6V

regardless of supply voltage

• High

±1.5% voltage threshold accuracy

• Built in hysteresis for noise suppression

• Extremely low 1.5

µA typical supply current

• Immune to brief input transients

• 5-lead SOT-23 package

Applications

•PDAs

• Pagers

• Cordless phones

• Consumer electronics

• Embedded controllers

• Personal electronics

Micrel, Inc. • 1849 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 944-0970 • http://www.micrel.com

General Description

The MIC834 is a micropower, precision voltage comparator

with an on-chip voltage reference.

The threshold is adjusted by the choice of two external

resistors. Voltage detection threshold is accurate to 1.5%.

Supply current is extremely low (1.5

µA, typical), making it

ideal for portable applications.

The MIC834 is supplied in Micrel’s IttyBitty™ 5-lead SOT-23-

5 package.

IttyBitty™ is a trademark of Micrel, Inc.

Ordering Information

Part Number

Marking

Accuracy

Temperature Range

Package

MIC834BM5

B12

1.5%

–40

°C to +85°C

SOT-23-5