MIC7211 Micrel Semiconductor, MIC7211 Datasheet

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MIC7211

Manufacturer Part Number
MIC7211
Description
IttyBitty Rail-to-Rail Input Comparator Preliminary Information
Manufacturer
Micrel Semiconductor
Datasheet

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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.
Pin Configuration
Pin Description
June 1999
MIC7211/7221
Micrel, Inc. • 1849 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 944-0970 • http://www.micrel.com
Pin Number
1
2
3
4
5
IN+
IN–
3
4
Axx
V+
2
OUT
V–
1
5
Pin Name
OUT
IN+
IN–
Part
Identification
V+
V–
Pin Function
Amplifier Output
Positive Supply
Noninverting Input
Inverting Input
Negative Suppy
1
Features
• Small footprint SOT-23-5 package
• Guaranteed performance at 2.2V, 2.7V, 5V, and 10V
• 7 A typical supply current at 5V
• <5 s 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
Functional Configuration
Part Number
MIC7211BM5
MIC7221BM5
IttyBitty™ Rail-to-Rail Input Comparator
Preliminary Information
MIC7211/7221
–40 C to +85 C
–40 C to +85 C
Temp. Range
SOT-23-5 (M5)
IN+
IN–
3
4
V+
2
OUT
V–
1
5
SOT-23-5
SOT-23-5
Package
MIC7211/7221
Mark
A14
A15
Micrel

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MIC7211 Summary of contents

Page 1

... 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 ...

Page 2

... V+ MIC7211 2.5mA LOAD I = 2.5mA LOAD V = low OUT / bold values indicate – Condition MIC7211 2.5mA LOAD I = 2.5mA LOAD V = low OUT 2 (Note 2) – .............................. 2.2V to 10V V+ V– ) ......................... – + Note 4 . +125 C J(max) ) Note 5 .......... 325 C +85 C; Note 7; unless noted ...

Page 3

... OUT MIC7211, sourcing sinking / bold values indicate – Condition 0V V 10V 5.0V to 10V V+ MIC7211 5mA LOAD I = 5mA LOAD V = low OUT MIC7211, sourcing sinking 3 T +85 C; Note 7; unless noted J Min Typ Max 3.3 0.5 0. 125 4.9 4.95 0.05 0 150 110 T +85 C ...

Page 4

... Devices are ESD sensitive. Handling precautions recommended. Note 7. All limits guaranteed by testing on statistical analysis. Note 8. Continuous short circuit may exceed absolute maximum T Note 9. The MIC7221 requires 5k pull-up resistor. Partial Functional Diagrams V+ OUT V– MIC7211 Push-Pull Output MIC7211/7221 T +85 C; Note 7; unless noted J Condition V = 5.0V 10kHz 50pF V+ LOAD ...

Page 5

... Even at 2.2V, the output can drive several logic-gate inputs. At 2.5mA, the output stage voltage drop is guaranteed to not exceed 0.1V. Outputs The MIC7211 has a push-pull output while the MIC7221 has an open-drain output, otherwise both comparators share a common design. The open-drain MIC7221 output can be pulled up to 10V, even when the supply voltage is as low as 2 ...

Page 6

... MIC7211/7221 Package Information 1.90 (0.075) REF 0.95 (0.037) REF 3.02 (0.119) 2.80 (0.110) 0.50 (0.020) 0.35 (0.014) MIC7211/7221 1.75 (0.069) 3.00 (0.118) 1.50 (0.059) 2.60 (0.102) DIMENSIONS: MM (INCH) 1.30 (0.051) 0.90 (0.035 0.15 (0.006) 0.60 (0.024) 0.00 (0.000) 0.10 (0.004) SOT-23-5 (M5) 6 Micrel 0.20 (0.008) 0.09 (0.004) June 1999 ...

Page 7

... MIC7211/7221 June 1999 7 Micrel MIC7211/7221 ...

Page 8

... This information is believed to be accurate and reliable, however no responsibility is assumed by Micrel for its use nor for any infringement of patents or other rights of third parties resulting from its use. No license is granted by implication or otherwise under any patent or patent right of Micrel Inc. MIC7211/7221 + 1 (408) 944-0970 http://www ...

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