ald2321 Advanced Linear Devices Inc (ALD), ald2321 Datasheet - Page 8

• Manufacturer Part Number: ald2321
• Description: Ultra Low Vos Epad Dual Cmos Analog Voltage Comparator
• Manufacturer: Advanced Linear Devices Inc (ALD)

ALD2321A/ALD2321B
ALD2321
* These pins should be isolated by surrounding them with ground trace in user's applications.
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:
RESPONSE TIME MEASUREMENT CIRCUIT
10X INPUT STEP
V
DUAL LIMIT WINDOW COMPARATOR
IN
V
REF(HIGH)
V
OUTPUT HIGH FOR V
R
AND V
V
IN
REF(LOW)
LOAD
IN
= 1.5K
> V
1K
+
+
REF(LOW)
9K
-
-
1/2 ALD2321
1/2 ALD2321
IN
<V
+
-
REF(HIGH)
VE
VE
1x
2x
R
V +
+5V
*
*
LOAD
V
OUT
TYPICAL APPLICATIONS
5.1K
Advanced Linear Devices
E-TRIM CIRCUIT
Level
Shift/
Scaling
Level
Shift/
Scaling
OUT
OUT
LIGHT
PHOTO-
DETECTOR
Input
Offset
Trim
Circuit
Input
Offset
Trim
Circuit
1
+IN
-IN
DUAL LIMIT PHOTO DETECTOR MONITOR
PINS OUT 1, OUT 1H, OUT 2, OUT 2H,
INTERNAL CIRCUIT CONFIGURATIONS
+
-
V
V
LIMIT 1
LIMIT2
V+
V +
OUT
OUT
1/2 ALD2321
1/2 ALD2321
OUT
OUT
1H
1
LED turns on as photo-detector
voltage reaches V LIMIT 1.
detector voltage reachesV LIMIT 2.
V EXTERNAL = +12V, V+ = +5V
-
+
-
+
Both LED and horn turns on as photo-
H
BUZZER
OUT
2
V
External
LED
V +
OUT
OUT
8
2
2H