NSC LMC7215IM5X, LMC7215IM5, LMC7215IM, LMC7225IMX, LMC7225IM5X Datasheet
...
LMC7215/LMC7225
Micro-Power, Rail-to-Rail CMOS Comparators with
Open-Drain/Push-Pull Outputs and TinyPak
™
Package
September 1999
LMC7215/LMC7225 Micro-Power, Rail-to-Rail CMOS Comparators with Open-Drain/Push-Pull
Outputs and TinyPak Package
General Description
The LMC7215/LMC7225 are ultra low power comparators
with amaximum of 1 µA power supply current. They are designed to operateover a wide range of supply voltages,from
2V to 8V.
The LMC7215/LMC7225 have agreaterthan rail-to-rail common mode voltage range. This is a real advantage in single
supply applications.
The LMC7215 features a push-pull output stage. This feature 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 comparator ideal for battery-powered applications.
Connection Diagrams
8–Pin SO–8
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: (
n Propagation delay (
n Tiny SOT23-5 package
n Latch-up resistance
@
V
>
300 mA
=
@
V
5V) 45 mA
S
=
5V, 10 mV overdrive) 25 µs
S
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
5–Pin SOT23-5
DS012853-2
DS012853-1
Top View
TinyPak™is a trademark of National Semiconductor Corporation.
© 1999 National Semiconductor Corporation DS012853 www.national.com
Top View
Ordering Information
Package Ordering NSC Drawing Package Supplied As
Information Number Marking
5-Pin SOT 23-5 LMC7215IM5 MA05A C02B 1k Tape and Reel
5-Pin SOT 23-5 LMC7225IM5 MA05A C03B 1k Tape and Reel
5-Pin SOT 23-5 LMC7215IM5X MA05A C02B 3k Tape and Reel
5-Pin SOT 23-5 LMC7225IM5X MA05A C03B 3k Tape and Reel
8-Pin SO-8 LMC7215IM M08A LMC7215IM Rails
8-Pin SO-8 LMC7225IM M08A LMC7225IM Rails
8-Pin SO-8 LMC7215IMX M08A LMC7215IM 2.5k Tape and Reel
8-Pin SO-8 LMC7225IMX M08A LMC7225IM 2.5k Tape and Reel
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Absolute Maximum Ratings (Note 1)
If Military/Aerospace specified devices are required,
please contact the NationalSemiconductor SalesOffice/
Distributors for availability and specifications.
ESD Tolerance (Note 2) 2 kV
Differential Input Voltage (V
Voltage at Input/Output Pin (V
Supply Voltage (V
+–V−
) 10V
Current at Input Pin
Current at Output Pin (Note 3)
Current at Power Supply Pin 40 mA
Lead Temperature
)+0.3V to (−VCC)−0.3V
CC
)+0.3V to (−VCC)−0.3V
CC
±
±
5mA
30 mA
(soldering, 10 sec) 260˚C
Storage Temperature Range −65˚C to +150˚C
Junction Temperature (Note 4) 150˚C
Operating Ratings(Note 1)
Supply Voltage 2V ≤ V
Junction Temperature Range
LMC7215IM, LMC7225IM −40˚C ≤ T
Thermal Resistance (θ
)
JA
M Package, 8-Pin Surface Mount 165˚C/W
SOT23-5 Package 325˚C/W
CC
≤ +85˚C
J
≤ 8V
2.7V to 5V Electrical Characteristics
Unless otherwise specified, all limits guaranteed for T
apply at the temperature extremes.
=
J
25˚C, V
+
=
2.7V to 5V, V
−
=
0V, V
=
=
V
CM
V+/2. Boldface limits
O
Typ LMC7215 LMC7225
Symbol Parameter Conditions (Note 5) Limit Limit Units
(Note 6) (Note 6)
V
OS
Input Offset Voltage 1 6 6 mV
88max
TCV
OS
Input Offset Voltage 2 µV/˚C
Average Drift
I
B
I
OS
Input Current 5 fA
Input Offset Current 1 fA
CMRR Common Mode (Note 7) 80 60 60 dB
Rejection Ratio min
+
PSRR Power Supply V
=
2.2V to 8V 90 60 60 dB
Rejection Ratio min
A
V
CMVR Input Common-Mode V
V
OH
V
OL
I
SC+
I
SC−
Voltage Gain 140 dB
+
=
2.7V 3.0 2.9 2.9 V
Voltage Range CMRR
Output Voltage High V
Output Voltage Low V
Output Short Circuit V
Current (Note 10) V
Output Short Circuit V
>
50 dB 2.7 2.7 min
+
=
V
2.7V −0.2 0.0 0.0 V
>
CMRR
V
CMRR
V
CMRR
I
V
I
V
I
I
V
I
V
I
50 dB 0.2 0.2 max
+
=
5.0V 5.3 5.2 5.2 V
>
50 dB 5.0 5.0 min
+
=
5.0V −0.3 −0.2 −0.2 V
>
50 dB 0.0 0.0 max
+
=
2.2V 2.05 1.8 NA V
=
1.5 mA 1.7 min
OH
+
=
2.7V 2.05 2.3 NA V
=
2.0 mA 2.2 min
OH
+
=
5.0V 4.8 4.6 NA V
=
4.0 mA 4.5 min
OH
+
=
2.2V 0.17 0.4 0.4 V
=
1.5 mA 0.5 0.5 max
OH
+
=
2.7V 0.17 0.4 0.4 V
=
2.0 mA 0.5 0.5 max
OH
+
=
5.0V 0.2 0.4 0.4 V
=
4.0 mA 0.5 0.5 max
OH
+
=
2.7V, Sourcing 15 NA mA
+
=
5.0V, Sourcing 50 NA mA
+
=
2.7V, Sinking 12 mA
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2.7V to 5V Electrical Characteristics (Continued)
Unless otherwise specified, all limits guaranteed for T
apply at the temperature extremes.
=
J
25˚C, V
+
=
2.7V to 5V, V
Symbol Parameter Conditions (Note 5) Limit Limit Units
+
=
5.0V, Sinking 30 mA
+
=
2.2V nA
V
+=0.1V, VIN−=0V, 0.01 NA 500 max
IN
=
V
15V
OUT
+
=
5.0V 0.7 1 1 µA
V
+=5V, VIN−=0V 1.2 1.2 max
IN
I
Leakage
I
S
Current (Note 10) V
Output Leakage Current V
Supply Current V
−
=
0V, V
=
=
V
CM
V+/2. Boldface limits
O
Typ LMC7215 LMC7225
(Note 6) (Note 6)
AC Electrical Characteristics
Unless otherwise specified, T
=
J
25˚C, V
+
=
5V, V
−
=
0V, V
+
=
/2
V
CM
LMC7215 LMC7225
Symbol Parameter Conditions Typ Typ Units
(Note 5) (Notes 5, 8)
t
rise
t
fall
t
PHL
Rise Time Overdrive=10 mV (Note 8) 1 12.2 µs
Fall Time Overdrive=10 mV (Note 8) 0.4 0.35 µs
Propagation Delay (Notes 8, 9) Overdrive = 10 mV 24 24 µs
(High to Low) Overdrive = 100 mV 12 12
+
=
V
2.7V Overdrive = 10 mV 17 17 µs
(Notes 8, 9) Overdrive = 100 mV 11 11
t
PLH
Propagation Delay (Notes 8, 9) Overdrive = 10 mV 24 29 µs
(Low to High) Overdrive = 100 mV 12 17
+
=
V
2.7V Overdrive = 10 mV 17 22 µs
(Notes 8, 9) Overdrive = 100 mV 11 16
Note 1: Absolute Maximum Ratingsindicate limits beyondwhich damage tothe device mayoccur. Operating Ratings indicate conditionsfor which thedevice is intended to be functional, but specific performance is not guaranteed. For guaranteed specifications and the test conditions, see the Electrical Characteristics.
Note 2: Human body model, 1.5 kΩ in series with 100 pF.
Note 3: Applies to both single-supply and split-supply operation. Continuous short circuit operation at elevated ambient temperature can result in exceeding the
maximum allowed junction temperature of 150˚C.
Note 4: The maximum power dissipation is a function of T
=
P
(T
D
Note 5: Typical values represent the most likely parametric norm.
Note 6: All limits are guaranteed by testing or statistical analysis.
Note 7: CMRR measuredat V
have large V
Note 8: All measurements made at 10 kHz. A 100 kΩ pull-up resistor was used when measuring the LMC7225. C
The rise times of the LMC7225 are a function of the R-C time constant.
Note 9: Input step voltage for the propagation measurements is 100 mV.
Note 10: Do not short the output of the LMC7225 to voltages greater than 10V or damage may occur.
)/θJA. All numbers apply for packages soldered directly into a PC board.
J(max)−TA
=
0V to 2.5V and 2.5V to 5V when V
at the VCMextremes and low or opposite VOSat V
OS
CM
, θJA, and TA. The maximum allowable power dissipation at any ambient temperature is
J(max)
=
=
5V, V
S
=
V
CM
0.2V to 1.35V and 1.35V to 2.7V when V
CM
/2.
S
LOAD
=
=
2.7V.This eliminatesunits that
S
50 pF including the test jig and scope probe.
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