MIC7211 Datasheet, PDF (1/8 Pages) Micrel Semiconductor – IttyBitty™ Rail-to-Rail Input Comparator Preliminary Information

MIC7211/7221
Micrel
MIC7211/7221
IttyBitty™ Rail-to-Rail Input Comparator
Preliminary Information
General Description
The MIC7211 and MIC7221 are micropower comparators
featuring rail-to-rail input performance in Micrel’s IttyBitty^™
SOT-23-5 package. The MIC7211/21 is ideal for systems
where small size is a critical consideration.
The MIC7211/21 is optimized for single supply operation
from 2.2V to 10V power supplies.
The MIC7211 features a conventional push-pull output while
the MIC7221 has an open-drain output for mixed-voltage
applications with an external pull-up resistor.
The MIC7211/21 benefits small battery-operated portable
electronic devices where small size and the ability to place
the comparator close to the signal source are primary design
concerns.
Features
• Small footprint SOT-23-5 package
• Guaranteed performance at 2.2V, 2.7V, 5V, and 10V
• 7µA typical supply current at 5V
• <5µs response time at 5V
• Push-pull output (MIC7211)
• Open-drain output (MIC7221)
• Input voltage range may exceed supply voltage by 0.3V
• >100mA typical sink or source
Applications
• Battery-powered products
• Notebook computers and PDAs
• PCMCIA cards
• Cellular and other wireless communication devices
• Alarm and security circuits
• Direct sensor interface
Ordering Information
Part Number
MIC7211BM5
MIC7221BM5
Temp. Range
–40°C to +85°C
–40°C to +85°C
Package
SOT-23-5
SOT-23-5
Mark
A14
A15
Pin Configuration
IN+ V+ OUT
3
2
1
Axx
4
5
IN–
V–
Part
Identification
Functional Configuration
IN+ V+ OUT
3
2
1
4
5
IN–
V–
SOT-23-5 (M5)
Pin Description
Pin Number
1
2
3
4
5
Pin Name
OUT
V+
IN+
IN–
V–
Pin Function
Amplifier Output
Positive Supply
Noninverting Input
Inverting Input
Negative Suppy
Micrel, Inc. • 1849 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 [phone] • fax + 1 [phone] • http://www.micrel.com
June 1999
1
MIC7211/7221