LMV7239 datasheet(4/12 Pages) NSC

Part #	LMV7239

Description	45ns, Ultra Low Power, Low Voltage, Rail-to-Rail Input Comparator with Open-Drain/Push-Pull Output

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Manufacturer	NSC [National Semiconductor (TI)]

Direct Link	http://www.national.com

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2.7V Electrical Characteristics (Continued)

Unless otherwise specified, all limits guaranteed for T

J = 25˚C, VCM =V

+/2, V+ = 2.7V, V− =0V−. Boldface limits apply at the

temperature extremes.

Symbol

Parameter

Conditions

Typ

(Note 5)

Limits

(Note 6)

Units

t

PD

Propagation Delay

Overdrive = 20mV

(Note 10)

68

ns

Overdrive = 50mV

(Note 10)

63

ns

Overdrive = 100mV

(Note 10)

50

ns

t

SKEW

Propagation Delay Skew

(LMV7239 only)

(Note 8)

5

ns

t

r

Output Rise Time

LMV7239

10% to 90%

1.7

ns

LMV7235

10% to 90%

(Note 10)

112

ns

t

f

Output Fall Time

90% to 10%

1.7

ns

I

LEAKAGE

Output Leakage Current

(LMV7235 only)

3nA

5V Electrical Characteristics

Unless otherwise specified, all limits guaranteed for T

J = 25˚C, VCM =V

+/2, V+ = 5V, V− = 0V. Boldface limits apply at the

temperature extremes.

Symbol

Parameter

Conditions

Typ

(Note 5)

Limits

(Note 6)

Units

V

OS

Input Offset Voltage

1

6

8

mV

max

I

B

Input Bias Current

30

400

600

nA

max

I

OS

Input Offset Current

5

200

400

nA

max

CMRR

Common Mode Rejection Ratio

0V < V

CM < 5V

67

52

dB

min

PSRR

Power Supply Rejection Ratio

V

+ = 2.7V to 5V

85

65

dB

min

V

CM

Input Common-Mode Voltage Range

CMRR > 50dB

V

+ +0.2

V

+ +0.1

V

+

V

min

−0.2

−0.1

0

V

max

V

O

Output Swing High

(LMV7239 only)

I

L = 4mA,

V

ID = 500mV

V

+ −0.15

V

+ −0.25

V

min

I

L = 0.4mA,

V

ID = 500mV

V

+ −0.01

V

min

Output Swing Low

(LMV7239/LMV7235)

I

L = −4mA,

V

ID = −500mV

230

350

450

mV

max

I

L = −0.4mA,

V

ID = −500mV

10

mV

max

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4

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