LM74 datasheet(4/15 Pages) NSC

4 / 15 page

Absolute Maximum Ratings (Note 1)

Supply Voltage

−0.3V to 6.0V

Voltage at any Pin

−0.3V to V

+ + 0.3V

Input Current at any Pin (Note 2)

5 mA

Package Input Current (Note 2)

20 mA

Storage Temperature

−65˚C to +150˚C

ESD Susceptibility (Note 4)

Human Body Model

LM74CIBP and LM74CITP, pin

A2 (SC)

1900V

LM74CIM,LM74CIBP, and

LM74CITP all other pins

2000V

Machine Model

200V

Soldering process must comply with National’s Reflow

Temperature Profile specifications. Refer to

www.national.com/packaging. (Note 3)

Operating Ratings

Specified Temperature Range

MIN to TMAX

(Note 5)

LM74CIBP and LM74CITP

LM74CIM

−40˚C to +125˚C

−55˚C to +150˚C

Supply Voltage Range (+V

LM74CIBP and LM74CITP

+2.65V to +5.5V

LM74CIM

+3.0V to +5.5V

Temperature-to-Digital Converter Characteristics

Unless otherwise noted, these specifications apply for V

+ = 2.65V to 3.6V for the LM74CIBP -3, LM74CITP-3, V+ = 3.0V to

3.6V for the LM74CIM -3 and V

+ = 4.5V to 5.5V for the LM74 -5 (Note 6). Boldface limits apply for T

A =TJ =TMIN to TMAX;

all other limits T

A =TJ=+25˚C, unless otherwise noted.

Parameter

Conditions

Typical

(Note 7)

LM74-5

Limits

(Note 8)

LM74-3

Limits

(Note 8)

Units

(Limit)

Temperature Error (Note 6)

A = −10˚C to +65˚C

±1.25

˚C (max)

A = −25˚C to +110˚C

±2.1

+2.65/−2.15

˚C (max)

A = −40˚C to +85˚C

+2.65/−1.65

±2.15

˚C (max)

A = −40˚C to +110˚C

+2.65/

−2.0

+2.65/−2.15

˚C (max)

A = −55˚C to +125˚C

±3.0

±3.5

˚C (max)

A = −55˚C to +150˚C

±5.0

˚C (max)

Resolution

Bits

Temperature

Conversion Time

SO-8

(Note 9)

280

425

ms (max)

micro SMD

(Note 9)

611

925

ms (max)

Quiescent Current

SO-8

Serial Bus Inactive

310

520

µA (max)

micro SMD

265

470

µA (max)

SO-8

Serial Bus Active

310

µA

micro SMD

310

µA

SO-8

Shutdown Mode,

+ = 3.3V

7µA

micro SMD

µA

SO-8

Shutdown Mode,

+ =5V

8µA

micro SMD

µA

Logic Electrical Characteristics

DIGITAL DC CHARACTERISTICS Unless otherwise noted, these specifications apply for V

+ = 2.65V to 3.6V for the

LM74CIBP -3, LM74CITP-3, V

+ = 3.0V to 3.6V for the LM74CIM -3 and V+ = 4.5V to 5.5V for the LM74 -5 (Note 6). Boldface

limits apply for T

A =TJ =TMIN to TMAX; all other limits TA =TJ=+25˚C, unless otherwise noted.

Symbol

Parameter

Conditions

Typical

(Note 7)

Limits

(Note 8)

Units

(Limit)

IN(1)

Logical “1” Input Voltage

+ x 0.7

V (min)

+ + 0.3

V (max)

IN(0)

Logical “0” Input Voltage

−0.3

V (min)

+ x 0.3

V (max)

Input Hysteresis Voltage

+ = 3.0V to 3.6V

0.8

0.35

V (min)

+ = 4.5V to 5.5V

0.8

0.33

V (min)

IN(1)

Logical “1” Input Current

IN =V

0.005

3.0

µA (max)

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