LMC7221BIM datasheet(3/21 Pages) TI1

Part #	LMC7221BIM

Description	LMC7221 Tiny CMOS Comparator with Rail-To-Rail Input and Open Drain Output

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LMC7221

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SNOS748E – SEPTEMBER 1999 – REVISED MARCH 2013

2.7V Electrical Characteristics (continued)

Unless otherwise specified, all limits ensured for TJ = 25°C, V

+ = 2.7V, V− = 0V, V

CM = VO = V

+/2. Boldface limits apply at the

temperature extremes.

Parameter

Test Conditions

LMC7221AI

LMC7221BI

Units

Typ(1)

Limit(2)

AV

Voltage Gain

100

dB

CMVR

Input Common-Mode Voltage

CMRR > 55 dB

3.0

2.9

V

Range

2.7

min

CMRR > 55 dB

−0.3

−0.2

V

0.0

max

VOL

Output Voltage Low

ILOAD = 2.5 mA

0.2

0.3

V

0.4

max

IS

Supply Current

VOUT = Low

7

12

μA

14

max

5.0V and 15.0V Electrical Characteristics

Unless otherwise specified, all limits ensured for TJ = 25°C, V

+ = 5.0V and 15V, V− = 0V, V

CM = VO = V

+/2. Boldface limits

apply at the temperature extremes.

Parameter

Test Conditions

LMC7221AI

LMC7221BI

Units

Typ(1)

Limit(2)

VOS

Input Offset Voltage

3

5

15

mV

8

18

max

TCVOS

Input Offset Voltage Temperature

V+ = 5V

1.0

μV/°C

Drift

V+ = 15V

4.0

Input Offset Voltage Average Drift V+ = 5V (3)

3.3

μV/Month

V+ = 15V (3)

4.0

IB

Input Current

0.04

pA

IOS

Input Offset Current

0.02

pA

CMRR

Common Mode Rejection Ration

V+ = 5.0V

75

dB

V+ = 15.0V

82

dB

PSRR

Power Supply Rejection Ratio

5V

≤ V+ ≤ 10V

80

dB

AV

Voltage Gain

100

dB

CMVR

Input Common-Mode Voltage

V+ = 5.0V

5.3

5.2

V

Range

CMRR > 55 dB

5.0

min

V+ = 5.0V

−0.3

−0.2

V

CMRR > 55 dB

0.0

max

V+ = 15.0V

15.3

15.2

V

CMRR > 55 dB

15.0

min

V+ = 15.0V

−0.3

−0.2

V

CMRR > 55 dB

0.0

max

VOL

Output Voltage Low

V+ = 5V

0.2

0.40

mV

ILOAD = 5 mA

0.55

max

V+ = 15V

0.2

0.40

mV

ILOAD = 5 mA

0.55

max

IS

Supply Current

VOUT = Low

7

14

μA

18

max

(1)

Typical values represent the most likely parametric norm as determined at the time of characterization. Actual typical values may vary

over time and will also depend on the application and configuration. The typical values are not tested and are not ensured on shipped

production material.

(2)

All limits are specified by testing or statistical analysis.

(3)

CL includes the probe and test jig capacitance.

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