LM4140

Unless otherwise specified, V

=V

boldface type apply over 0˚C to 70˚C temperature range.

Symbol

Parameter

Conditions

Min

(Note 6)

Typ

(Note 5)

Max

(Note 6)

Units

Operating

Voltage

LM4140-1.024,

LM4140-1.250

I

1.8

5.5

V

V

Dropout Voltage (Note 9)

LM4140-2.048,

LM4140-2.500

I

20

40

45

mV

I

160

235

400

LM4140-4.096

I

20

40

45

I

195

270

490

V

N

Output Noise Voltage

(Note 10)

0.1 Hz to 10 Hz

2.2

µV

PP

I

S(ON)

Supply Current

I

µA

All other voltage options

230

320

375

4.096V Option

265

350

400

I

S(OFF)

Supply Current

V

.01

1

µA

V

H

Logic High Input Voltage

0.8V

IN

V

I

H

Logic High Input Current

2

nA

V

L

Logic Low Input Voltage

0.4

V

I

L

Logic Low Input Current

1

nA

I

SC

Short Circuit Current

8.5

20

35

40

mA

Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is in-

tended to be functional, but do not guarantee specific performance limits. For guaranteed specifications and test conditions, see Electrical Characteristics. The guar-

anteed specifications apply only for the test conditions listed. Some performance characteristics may degrade when the device is not operated under the listed test

conditions.

temperature),

Note 3: The human body model is a 100 pF capacitor discharged through a 1.5 k

Ω resistor into each pin. The machine model is a 200 pF capacitor discharged di-

rectly into each pin.

Note 4: For proper operation, a 1µF capacitor is required between the output pin and the GND pin of the device. (See Application Section for details)

Note 5: Typical numbers are at 25˚C and represent the most likely parametric norm.

Note 6: Limits are 100% production tested at 25˚C. Limits over the operating temperature range are guaranteed through correlation using Statistical Quality Control

(SQC) methods. The limits are used to calculate National’s Average Outgoing Quality Level (AOQL).

Note 7: High temperature and mechanical stress associated with PCB assembly can have significant impact on the initial accuracy of the LM4140 and may create

Note 8: Thermal hysteresis is defined as the changes in +25˚C output voltage before and after the cycling of the device from 0˚C to 70˚C.

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