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PDF ALD2302 Data sheet ( Hoja de datos )
| Número de pieza | ALD2302 | |
| Descripción | DUAL 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 ALD2302 (archivo pdf) en la parte inferior de esta página. Total 6 Páginas | ||
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ADVANCED
LINEAR
DEVICES, INC.
ALD2302A/ALD2302
DUAL PRECISION CMOS VOLTAGE COMPARATOR WITH PUSH-PULL DRIVER
GENERAL DESCRIPTION
The ALD2302A/ALD2302 are monolithic precision high performance
dual voltage comparators built with advanced silicon gate CMOS tech-
nology. The primary features are: very high typical input impedance of
1012Ω; low input bias current of 10pA; fast response time of 180ns; very
low power dissipation of 175µA per comparator; and single (+5V) or dual
(±5V) power supply operation.
The input voltage range includes ground, which makes these compara-
tors ideal for single supply low level signal detection with high source
impedance. The outputs can source and sink current allowing for
application flexibility. They can be used in either wired-OR connection
without pull-up resistor or push-pull configuration. The ALD2302A/
ALD2302 can also be used in wired-OR connection with other open
drain circuits such as the ALD2301/ALD2303 voltage comparators.
The ALD2302A/ALD2302 voltage comparators are ideal for a great
variety of applications, especially in low level signal detection circuits
which require low standby power and high output current. For quad
packages, use the ALD4302 quad voltage comparator.
APPLICATIONS
• PCMCIA instruments
• MOSFET driver
• High source impedance voltage
comparison circuits
• Multiple limit window comparator
• Power supply voltage monitor
• Photodetector sensor circuit
• High speed LED driver
• Oscillators
• Battery operated instruments
• Remote signal detection
• Multiple relay drivers
FEATURES
• Guaranteed to drive 200Ω loads
• Fanout of 30LS TTL loads
• Low supply current of 175µA each comparator
• Pinout of LM193 type industry standard
comparators
• Extremely low input bias currents -- 10pA
• Virtually eliminates source impedance effects
• Low operating supply voltage of 4V to 12V
• Single (+5V) and dual supply (±5V) operation
• High speed for both large and small signals --
180ns for TTL inputs and 400ns for 20mV
overdrive
• CMOS, NMOS and TTL compatible
• Push-pull outputs-current sourcing/ sinking
• High output sinking current -- 60mA
• Low supply current spikes
PIN CONFIGURATION
OUT 1 1
8 V+
-IN 1 2
+IN 1 3
7 OUT 2
6 -IN 2
GND 4
5 +IN 2
TOP VIEW
DA, PA, SA PACKAGE
BENEFITS
• On-chip input and output buffers
• Precision voltage comparison capability
• Eliminate need for second power supply
• Eliminate pull-up resistor
ORDERING INFORMATION
Operating Temperature Range *
-55°C to +125°C
0°C to +70°C
0°C to +70°C
8-Pin
CERDIP
Package
8-Pin
Small Outline
Package (SOIC)
8-Pin
Plastic Dip
Package
ALD2302A DA
ALD2302 DA
ALD2302A SA
ALD2302 SA
ALD2302A PA
ALD2302 PA
BLOCK DIAGRAM
INVERTING INPUT
-IN 1 (2)
NONINVERTING INPUT
+IN 1 (3)
INVERTING INPUT
-IN 2 (6)
NONINVERTING INPUT
+IN 2 (5)
(8) V+
(1) OUT 1
V+
(7) OUT 2
(4) GND
* Contact factory for industrial temperature range
© 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
+3V
50K
VIN +
VOUT
-5V
1/2 ALD2302
+12V
ALD2302
+12V
50K VH2
+
+12V
MULTIPLE RELAY DRIVE
+5V
+5V
VREF
VIN
+
1/2 ALD2302
VH1 +
+12V
47K VIN
+12V
+
VL1
+
VL2
50K
VOLTAGE LEVEL TRANSLATOR
VREF
VIN
V+ = +10V
+
1/2 ALD2302
VOUT
VREF
VREF
= 1.4V for TTL input
= V+ for CMOS input
2
Output VOUT swings from rail-to-rail
ALD2302
VL1 and VH1 first limit window send warning
VL2 and VH2 second limit window execute
system cutoff
ALD2302A/ALD2302
Advanced Linear Devices
5
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet ALD2302.PDF ] | |
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