ALD4302ADB ALD [Advanced Linear Devices], ALD4302ADB Datasheet
ALD4302ADB
Manufacturer Part Number
ALD4302ADB
Description
QUAD PRECISION CMOS VOLTAGE COMPARATOR WITH PUSH-PULL DRIVER
Manufacturer
ALD [Advanced Linear Devices]
Datasheet
1.ALD4302ADB.pdf
(6 pages)
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 10
response time of 120ns; very low power dissipation of 150 A 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 200 loads
• Fanout of 30 LS TTL loads
• Low supply current of 150 A 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 -
• CMOS, NMOS and TTL compatible
• Push-pull outputs
• High output sinking current -- 60mA
• Low supply current spikes
• High gain -- 100V/mV
ORDERING INFORMATION
* 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
120ns for TTL inputs and 400ns for 5mV overdrive
-55 C to +125 C
14-Pin
CERDIP
Package
ALD4302A DB
ALD4302 DB
QUAD PRECISION CMOS VOLTAGE COMPARATOR WITH PUSH-PULL DRIVER
A
L
D
INEAR
DVANCED
EVICES,
Operating Temperature Range*
I
NC.
0 C to 70 C
14-Pin
Small Outline
Package( SOIC)
ALD4302A SB
ALD4302 SB
12
; low input bias current of 10pA; fast
0 C to +70 C
Plastic Dip
ALD4302A PB
ALD4302 PB
14-Pin
Package
PIN CONFIGURATION
APPLICATIONS
• MOSFET driver
• High source impedance voltage
• 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
BLOCK DIAGRAM
comparison circuits
NONINVERTING INPUT
NONINVERTING INPUT
NONINVERTING INPUT
NONINVERTING INPUT
+IN
+IN
-IN
-IN
V
02
INVERTING INPUT
INVERTING INPUT
01
INVERTING INPUT
INVERTING INPUT
+
2
2
1
1
- IN
+ IN
4
1
2
3
5
6
7
+ IN
+ IN
+ IN
- IN
- IN
- IN
DB, PB, SB PACKAGE
4
4
2
3
1
2
3
1
(10)
(11)
(6)
(7)
(8)
(4)
(5)
(9)
ALD4302A/ALD4302
+
+
+
-
-
-
+
-
(12)
V
+
(3)
13
12
14
10
11
9
8
(1) OUT
(2) OUT
(14) OUT
(13) OUT
+IN
03
GND
-IN
+IN
04
-IN
4
3
4
3
2
1
3
4
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ALD4302ADB Summary of contents
Page 1
A DVANCED L INEAR D I EVICES, NC. 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 12 ...
Page 2
ABSOLUTE MAXIMUM RATINGS + Supply voltage, V Differential input voltage range Power dissipation Operating temperature range Storage temperature range Lead temperature, 10 seconds OPERATING ELECTRICAL CHARACTERISTICS = +5V unless otherwise specified T A Parameter Symbol ...
Page 3
TYPICAL PERFORMANCE CHARACTERISTICS SATURATION VOL TAGE vs. TEMPERATURE 1 2. 50mA SINK 1.0 0.8 0.6 0.4 0.2 0 -55 - TEM PERATURE ( C) COMMON - MODE VOLTAGE REFERRED TO SUPPL ...
Page 4
TYPICAL PERFORMANCE CHARACTERISTICS TOTAL SUPPLY CURRENT vs. TOTAL SUPPLY VOLTAGE 1000 + 800 600 400 200 6.0 2.0 4.0 SUPPLY VOLTAGE (V) NORMALIZED INPUT OFFSET VOLTAGE vs. TEMPERATURE + -55 -25 ...
Page 5
ZERO CROSSING DETECTOR + -5V 1/4 ALD4302 MULTIPLE RELAY DRIVE +5V V REF 1/4 ALD4302 VOLTAGE LEVEL TRANSLATOR 10V V REF 1/4 ALD4302 V = 1.4V for ...
Page 6
This circuit eliminates crossover current in the complementary power transistors. The outputs can be used to source and sink different loads or tied together to provide push-pull drive. 1/4 ALD4302 V REF + V IN Design & Operating Notes: 1. ...