LT6703-2/LT6703-3

1

670323fa

TYPICAL APPLICATION

Micropower Supply Voltage Monitor

APPLICATIONS

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Battery-Powered System Monitoring

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Threshold Detectors

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Window Comparators

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Relay Driving

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Optoisolator Driving

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Industrial Control Systems

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Handheld Instruments

FEATURES

DESCRIPTION

Micropower, Low Voltage

Comparator with

400mV Reference

voltage comparator with a 400mV reference in a tiny DFN

package. Operating with supplies from 1.4V up to 18V,

these devices draw only 6.5μA, making them ideal for

low voltage system monitoring. Hysteresis is included in

the comparator, ensuring stable operation.

The comparator has one input available externally while

the other input is connected internally to the reference. The

comparator output is open collector and the output load

can be referred to any voltage up to 18V independent of

supply voltage. The output stage has a guaranteed current

sink capability of more than 5mA over temperature.

The two versions of this part differ by the polarity of the

available comparator input. The LT6703-2 has an inverting

input and the LT6703-3 has a noninverting input. Both

versions are offered in commercial, industrial and automo-

tive temperature ranges.

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Internal 400mV Reference

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Total Threshold Error: ± 1.25% Max at 25°C

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Wide Supply Range: 1.4V to 18V

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Specified for –40 to 125°C Temperature Range

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Low Quiescent Current: 6.5μA Typ at 5V

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Internal Hysteresis: 6.5mV Typ

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Low Input Bias Current: ±10nA Max

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Open-Collector Output Allows Level Translation

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Choice of Input Polarities: LT6703-2/LT6703-3

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Available in a 2mm × 2mm DFN Package

, LT, LTC, LTM and Over-The-Top are registered trademarks of Linear Technology

Corporation. ThinSOT is a trademark of Linear Technology Corporation. All other

trademarks are the property of their respective owners.

Rising Input Threshold Voltage vs Temperature

670323 TA01

+

–

400mV

REFERENCE

OUT

1M

Ω

154k

0.1

μF

1M

Ω

+IN

GND

1.4V

LT6703-3

TEMPERATURE (

°C)

–60 –40

400

401

402

100 120

670323 G04

399

398

–20

0

20406080

397

404

403

396

FOUR TYPICAL PARTS

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