ALD2321 データシートの表示（PDF） - Advanced Linear Devices

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ALD2321

ULTRA LOW VOS EPAD® DUAL CMOS ANALOG VOLTAGE COMPARATOR

Advanced Linear Devices 

TYPICAL APPLICATIONS

DUAL LIMIT WINDOW COMPARATOR

VREF(HIGH)

1/2 ALD2321

+

V+

RLOAD

-

VOUT

+

VIN

-

VREF(LOW)

1/2 ALD2321

RLOAD = 1.5KΩ

OUTPUT HIGH FOR VIN <VREF(HIGH)

AND VIN > VREF(LOW)

DUAL LIMIT PHOTO DETECTOR MONITOR

VExternal

V+

BUZZER

1/2 ALD2321

LED

VLIMIT2

+

-

LIGHT

PHOTO-

DETECTOR

VLIMIT 1

+

-

1/2 ALD2321

LED turns on as photo-detector

voltage reaches VLIMIT1.

Both LED and horn turns on as photo-

detector voltage reachesVLIMIT2.

VEXTERNAL= +12V, V+ = +5V

RESPONSE TIME MEASUREMENT CIRCUIT

Response time is defined as the internal between the application

of an input step function and the instant when the output reaches

50% of its maximum value as measured by the following test circuit:

PINS OUT1, OUT1H, OUT2, OUT2H,

INTERNAL CIRCUIT CONFIGURATIONS

V+

V+

10X INPUT STEP

VIN

9KΩ

1KΩ

+5V

-

+

5.1KΩ

OUT

OUT1

OUT1H

OUT1

OUT2

OUT2H

OUT2

VE1x*

E-TRIM CIRCUIT

-IN

-

+IN

+

Level

Shift/

Scaling

Input

Offset

Trim

Circuit

OUTH

OUT

VE2x*

Level

Shift/

Scaling

Input

Offset

Trim

Circuit

* These pins should be isolated by surrounding them with ground trace in user's applications.

ALD2321A/ALD2321B

Advanced Linear Devices

8

ALD2321

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