CMOS Comparators. LMC7225 Datasheet

LMC7225 Comparators. Datasheet pdf. Equivalent


National Semiconductor LMC7225
September 1999
LMC7215/LMC7225
Micro-Power, Rail-to-Rail CMOS Comparators with
Open-Drain/Push-Pull Outputs and TinyPakPackage
General Description
The LMC7215/LMC7225 are ultra low power comparators
with a maximum of 1 µA power supply current. They are de-
signed to operate over a wide range of supply voltages, from
2V to 8V.
The LMC7215/LMC7225 have a greater than rail-to-rail com-
mon mode voltage range. This is a real advantage in single
supply applications.
The LMC7215 features a push-pull output stage. This fea-
ture allows operation with absolute minimum amount of
power consumption when driving any load.
The LMC7225 features an open drain output. By connecting
an external resistor, the output of the comparator can be
used as a level shifter to any desired voltage to as high as
15V.
The LMC7215/LMC7225 are designed for systems where
low power consumption is the critical parameter.
Guaranteed operation over the full supply voltage range of
2.7V to 5V and rail-to-rail performance makes this compara-
tor ideal for battery-powered applications.
Features
(Typical unless otherwise noted)
n Ultra low power consumption 0.7 µA
n Wide range of supply voltages 2V to 8V
n Input common-mode range beyond V+ and V−
n Open collector and push-pull output
n High output current drive: (@ VS = 5V) 45 mA
n Propagation delay (@ VS = 5V, 10 mV overdrive) 25 µs
n Tiny SOT23-5 package
n Latch-up resistance >300 mA
Applications
n Laptop computers
n Mobile phones
n Metering systems
n Hand-held electronics
n RC timers
n Alarm and monitoring circuits
n Window comparators, multivibrators
Connection Diagrams
8–Pin SO–8
5–Pin SOT23-5
Top View
DS012853-1
Top View
DS012853-2
TinyPakis a trademark of National Semiconductor Corporation.
© 1999 National Semiconductor Corporation DS012853
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LMC7225 Datasheet
Recommendation LMC7225 Datasheet
Part LMC7225
Description Rail-to-Rail CMOS Comparators
Feature LMC7225; LMC7215/LMC7225 Micro-Power, Rail-to-Rail CMOS Comparators with Open-Drain/Push-Pull Outputs and Tin.
Manufacture National Semiconductor
Datasheet
Download LMC7225 Datasheet




National Semiconductor LMC7225
Ordering Information
Package
5-Pin SOT 23-5
5-Pin SOT 23-5
5-Pin SOT 23-5
5-Pin SOT 23-5
8-Pin SO-8
8-Pin SO-8
8-Pin SO-8
8-Pin SO-8
Ordering
Information
LMC7215IM5
LMC7225IM5
LMC7215IM5X
LMC7225IM5X
LMC7215IM
LMC7225IM
LMC7215IMX
LMC7225IMX
NSC Drawing
Number
MA05A
MA05A
MA05A
MA05A
M08A
M08A
M08A
M08A
Package
Marking
C02B
C03B
C02B
C03B
LMC7215IM
LMC7225IM
LMC7215IM
LMC7225IM
Supplied As
1k Tape and Reel
1k Tape and Reel
3k Tape and Reel
3k Tape and Reel
Rails
Rails
2.5k Tape and Reel
2.5k Tape and Reel
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National Semiconductor LMC7225
Absolute Maximum Ratings (Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
ESD Tolerance (Note 2)
Differential Input Voltage
Voltage at Input/Output Pin
Supply Voltage (V+–V)
Current at Input Pin
Current at Output Pin (Note 3)
Current at Power Supply Pin
Lead Temperature
2 kV
(VCC)+0.3V to (−VCC)−0.3V
(VCC)+0.3V to (−VCC)−0.3V
10V
±5 mA
±30 mA
40 mA
(soldering, 10 sec)
Storage Temperature Range
Junction Temperature (Note 4)
260˚C
−65˚C to +150˚C
150˚C
Operating Ratings(Note 1)
Supply Voltage
Junction Temperature Range
LMC7215IM, LMC7225IM
Thermal Resistance (θJA)
M Package, 8-Pin Surface Mount
SOT23-5 Package
2V VCC 8V
−40˚C TJ +85˚C
165˚C/W
325˚C/W
2.7V to 5V Electrical Characteristics
Unless otherwise specified, all limits guaranteed for TJ = 25˚C, V+ = 2.7V to 5V, V= 0V, VCM = VO = V+/2. Boldface limits
apply at the temperature extremes.
Typ
LMC7215
LMC7225
Symbol
Parameter
Conditions
(Note 5)
Limit
Limit
Units
(Note 6)
(Note 6)
VOS Input Offset Voltage
1 6 6 mV
8 8 max
TCVOS
Input Offset Voltage
Average Drift
2 µV/˚C
IB
IOS
CMRR
Input Current
Input Offset Current
Common Mode
(Note 7)
5 fA
1 fA
80 60 60 dB
PSRR
Rejection Ratio
Power Supply
min
V+ = 2.2V to 8V 90 60 60 dB
Rejection Ratio
min
AV
CMVR
VOH
Voltage Gain
Input Common-Mode
Voltage Range
Output Voltage High
V+ = 2.7V
CMRR > 50 dB
V+ = 2.7V
CMRR > 50 dB
V+ = 5.0V
CMRR > 50 dB
V+ = 5.0V
CMRR > 50 dB
V+ = 2.2V
IOH = 1.5 mA
V+ = 2.7V
140 dB
3.0 2.9 2.9 V
2.7 2.7 min
−0.2
0.0
0.0
V
0.2 0.2 max
5.3 5.2 5.2 V
5.0 5.0 min
−0.3
−0.2
−0.2
V
0.0 0.0 max
2.05
1.8
NA
V
1.7 min
2.05
2.3
NA
V
IOH = 2.0 mA
V+ = 5.0V
2.2 min
4.8 4.6 NA V
IOH = 4.0 mA
VOL
Output Voltage Low
V+ = 2.2V
IOH = 1.5 mA
V+ = 2.7V
4.5
0.17
0.4
0.5
0.17
0.4
min
0.4 V
0.5 max
0.4 V
IOH = 2.0 mA
V+ = 5.0V
0.5 0.5 max
0.2 0.4 0.4 V
IOH = 4.0 mA
ISC+
Output Short Circuit
V+ = 2.7V, Sourcing
Current (Note 10)
V+ = 5.0V, Sourcing
ISC−
Output Short Circuit
V+ = 2.7V, Sinking
0.5 0.5 max
15 NA mA
50 NA mA
12 mA
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