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PDF ALD4302A Data sheet ( Hoja de datos )
| Número de pieza | ALD4302A | |
| Descripción | QUAD PRECISION CMOS VOLTAGE COMPARATOR WITH PUSH-PULL DRIVER | |
| Fabricantes | Advanced Linear Devices | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de ALD4302A (archivo pdf) en la parte inferior de esta página. Total 6 Páginas | ||
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ADVANCED
LINEAR
DEVICES, INC.
ALD4302A/ALD4302
QUAD PRECISION CMOS VOLTAGE COMPARATOR WITH PUSH-PULL DRIVER
GENERAL DESCRIPTION
The ALD4302 is a monolithic high performance quad voltage comparator
built with advanced silicon gate CMOS technology. It features very high
typical input impedance of 1012Ω; low input bias current of 10pA; fast
response time of 120ns; very low power dissipation of 150µA per compara-
tor; and single +5V or dual ±5V power supply operation.
The input voltage range includes ground, making this comparator ideal for
single supply low level signal detection with high source impedance. The
outputs can source and sink current, allowing application flexibility, and can
be used in either wired-OR connection without pull up resistor or push-pull
configuration. The ALD4302 can be used in wired-OR connection with
other open drain circuits such as the ALD2301 and ALD2303 voltage
comparators.
The ALD4302 is ideal for a great variety of precision voltage comparator
applications, especially low level signal detection circuits requiring low
standby power, yet retaining high output current capability.
FEATURES
• Guaranteed to drive 200Ω loads
• Fanout of 30 LS TTL loads
• Low supply current of 150µA each comparator
• Extremely low input bias currents -- 10pA
• Virtually eliminates source impedance effects
• Low operating supply voltage of 3V to 12V
• Single +5V and dual supply ±5V operation
• High speed for both large and small signals -
120ns for TTL inputs and 400ns for 5mV overdrive
• CMOS, NMOS and TTL compatible
• Push-pull outputs
• High output sinking current -- 60mA
• Low supply current spikes
• High gain -- 100V/mV
APPLICATIONS
• MOSFET driver
• High source impedance voltage
comparison circuits
• Multiple limit window comparator
• Power supply voltage monitor
• Photo-detector sensor circuit
• High speed LED driver
• Oscillators
• Battery operated instruments
• Remote signal detection
• Multiple relay drivers
PIN CONFIGURATION
02 1
14 03
01 2
13 04
V+ 3
12 GND
-IN 1 4
11 +IN 4
+IN 1 5
10 -IN 4
-IN 2 6
9 +IN 3
+IN 2
78
DB, PB, SB PACKAGE
-IN 3
BLOCK DIAGRAM
V+ (3)
INVERTING INPUT
- IN 1 (4)
NONINVERTING INPUT
+ IN 1 (5)
-
+
(2) OUT 1
ORDERING INFORMATION
Operating Temperature Range*
-55°C to +125°C
0°C to 70°C
0°C to +70°C
14-Pin
CERDIP
Package
14-Pin
Small Outline
Package( SOIC)
14-Pin
Plastic Dip
Package
ALD4302A DB
ALD4302 DB
ALD4302A SB
ALD4302 SB
ALD4302A PB
ALD4302 PB
INVERTING INPUT
- IN 2 (6)
NONINVERTING INPUT
+ IN 2 (7)
INVERTING INPUT
- IN 3 (8)
NONINVERTING INPUT
+ IN 3 (9)
INVERTING INPUT
- IN 4 (10)
NONINVERTING INPUT
+ IN 4 (11)
-
+
-
+
-
+
(1) OUT 2
(14) OUT 3
(13) OUT 4
* Contact factory for industrial temperature range
(12)
© 1998 Advanced Linear Devices, Inc. 415 Tasman Drive, Sunnyvale, California 94089 -1706 Tel: (408) 747-1155 Fax: (408) 747-1286 http://www.aldinc.com
1 page  
TYPICAL APPLICATIONS
ZERO CROSSING DETECTOR
DOUBLE DUAL LIMIT WINDOW COMPARATOR
+5V
VIN +
VOUT
-5V
1/4 ALD4302
+12V
VH2
50K
+12V
+12V
+
MULTIPLE RELAY DRIVE
VREF
VIN
+5V
+5V
+
1/4 ALD4302
VH1
+
VIN
47K
VL1
+
VL2
50K
+
+12V
VOLTAGE LEVEL TRANSLATOR
V+ = +10V
VREF
VIN
+
VOUT
1/4 ALD4302
VREF = 1.4V for TTL input
VREF
=
V+
2
for CMOS input
Output VOUT swings from rail- to- rail
ALD4302
VL1 and VH1 first limit window send warning.
VL2 and VH2 second limit window execute system cutoff.
ALD4302/ALD4302
Advanced Linear Devices
5
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet ALD4302A.PDF ] | |
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