ALD4303ADB ALD [Advanced Linear Devices], ALD4303ADB Datasheet
ALD4303ADB
Manufacturer Part Number
ALD4303ADB
Description
QUAD PRECISION MICROPOWER CMOS VOLTAGE COMPARATOR WITH DRIVER
Manufacturer
ALD [Advanced Linear Devices]
Datasheet
1.ALD4303ADB.pdf
(6 pages)
GENERAL DESCRIPTION
The ALD4303A/ALD4303 is a precision monolithic high performance
quad voltage comparator with open drain output built with advanced
silicon gate CMOS technology. It features very high typical input
impedance of 10
dissipation of 7.5 A per comparator; micropower
output drive 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 ALD4303A/ALD4303 can be used in connection with other voltage
comparator circuits such as the ALD2301/ALD2302/ALD4302 voltage
comparators. The outputs can be connected to a higher external
voltage than V
drain circuits such as ALD2301/ALD2303. They can also be used with
push-pull output types such as ALD2302/ALD4302 voltage compara-
tors simultaneously with open drain comparators using a common V+.
The ALD4303A/ALD4303 is ideal for a great variety of voltage com-
parator applications, especially micropower detection circuits requiring
very low input currents, high output currents and low standby power.
APPLICATIONS
• Sensor detection circuits
• 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
BENEFITS
• Extremely low power and high precision combination
• Built-in high input impedance buffer
• Built-in output driver with up to 60mA sink current
ORDERING INFORMATION
* Contact factory for industrial temperature range
© 2005 Advanced Linear Devices, Inc. 415 Tasman Drive, Sunnyvale, California 94089 -1706 Tel: (408) 747-1155 Fax: (408) 747-1286 http://www.aldinc.com
-55 C to +125 C
14-Pin
CERDIP
Package
ALD4303ADB
ALD4303DB
QUAD PRECISION MICROPOWER CMOS VOLTAGE COMPARATOR WITH DRIVER
A
L
D
INEAR
+
DVANCED
EVICES,
and used in a wired-OR connection with other open
12
Operating Temperature Range *
; low input bias current of 10pA; very low power
I
NC.
0 C to +70 C
Small Outline
Package (SOIC)
ALD4303ASB
ALD4303SB
14-Pin
0 C to +70 C
14-Pin
Plastic Dip
Package
ALD4303APB
ALD4303PB
operation; high
BLOCK DIAGRAM
PIN CONFIGURATION
NONINVERTING INPUT
NONINVERTING INPUT
NONINVERTING INPUT
NONINVERTING INPUT
FEATURES
• 3V, 5V and 12V supply
• Guaranteed to drive 200 loads
• Fanout of 30LS TTL loads
• Guaranteed maximum supply current of
• Industry standard pinout of LM393 type
• Extremely low input bias currents -- 10pA
• Virtually eliminates source impedance
• Single (+5V) and dual supply ( 5V)
• CMOS, NMOS and TTL compatible
• Open drain wired-OR outputs
• Compatible with push-pull outputs
• High output sinking current -- 60mA
• Low supply current spikes
• High gain -- 100V/mV
22 A per comparator
effects
operation
+IN
+IN
INVERTING INPUT
INVERTING INPUT
INVERTING INPUT
-IN
INVERTING INPUT
-IN
V
02
01
+
2
2
1
1
- IN
+ IN
+ IN
+ IN
+ IN
- IN
- IN
- IN
4
1
2
3
5
6
7
4
4
DB, PB, SB PACKAGE
1
2
2
3
3
1
(10)
(11)
(6)
(7)
(8)
(4)
(5)
(9)
ALD4303A/ALD4303
+
+
+
+
-
-
-
-
(12)
V
+
(3)
13
12
14
10
11
9
8
+IN
+IN
03
GND
-IN
-IN
(1) OUT
04
(2) OUT
(14) OUT
(13) OUT
4
3
4
3
2
1
4
3
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ALD4303ADB Summary of contents
Page 1
... C to +70 C 14-Pin 14-Pin CERDIP Small Outline Package Package (SOIC) ALD4303ADB ALD4303ASB ALD4303DB ALD4303SB * Contact factory for industrial temperature range © 2005 Advanced Linear Devices, Inc. 415 Tasman Drive, Sunnyvale, California 94089 -1706 Tel: (408) 747-1155 Fax: (408) 747-1286 http://www.aldinc.com FEATURES • ...
Page 2
ABSOLUTE MAXIMUM RATINGS + Supply voltage, V Differential input voltage range Power dissipation Operating temperature range PB, SB package DB package Storage temperature range Lead temperature, 10 seconds OPERATING ELECTRICAL CHARACTERISTICS = +5V unless otherwise ...
Page 3
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 Y VOLTAGE 0.5 ...
Page 4
TOTAL SUPPLY CURRENT vs. TOTAL SUPPLY VOLTAGE 100 + 10 1 2.0 4.0 6.0 SUPPLY VOLTAGE (V) NORMALIZED INPUT OFFSET VOLTAGE vs. TEMPERATURE + -55 - TEMPERATURE ( ...
Page 5
ZERO CROSSING DETECTOR + -3V 1/4 ALD4303 MULTIPLE RELAY DRIVE +5V V REF + V IN 1/4 ALD4303 VOLTAGE LEVEL TRANSLATOR V+ = +10V V REF 1/4 ALD4303 V = 1.4V for TTL input ...
Page 6
PUSH-PULL COMPLEMENTARY POWER MOSFET DRIVER 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 of the same load. ...