ALD4303 Datasheet, PDF (1/6 Pages) Advanced Linear Devices – QUAD PRECISION MICROPOWER CMOS VOLTAGE COMPARATOR WITH DRIVER

ADVANCED
LINEAR
DEVICES, INC.
ALD4303A/ALD4303
QUAD PRECISION MICROPOWER CMOS VOLTAGE COMPARATOR WITH DRIVER
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 10¹²â„¦; low input bias current of 10pA; very low power
dissipation of 7.5µA per comparator; micropower operation; high
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+ and used in a wired-OR connection with other open
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.
FEATURES
• 3V, 5V and 12V supply
• Guaranteed to drive 200Ω loads
• Fanout of 30LS TTL loads
• Guaranteed maximum supply current of
22µA per comparator
• Industry standard pinout of LM393 type
• Extremely low input bias currents -- 10pA
• Virtually eliminates source impedance
effects
• Single (+5V) and dual supply (±5V)
operation
• 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
PIN CONFIGURATION
02 1
14 03
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
Operating Temperature Range *
-55°C to +125°C
0°C to +70°C
0°C to +70°C
01 2
13 ₀₄
V⁺ 3
12 GND
-IN ₁ 4
+IN ₁ 5
-IN ₂ 6
11 +IN ₄
10 -IN ₄
9 +IN ₃
+IN ₂
7
8
DB, PB, SB PACKAGE
-IN ₃
BLOCK DIAGRAM
V⁺ (3)
INVERTING INPUT
-
- IN ₁ (4)
NONINVERTING INPUT
+
+ IN ₁ (5)
INVERTING INPUT
-
- IN ₂ (6)
NONINVERTING INPUT
+
+ IN ₂ (7)
(2) OUT ₁
(1) OUT ₂
14-Pin
CERDIP
Package
14-Pin
Small Outline
Package (SOIC)
14-Pin
Plastic Dip
Package
INVERTING INPUT
-
- IN ₃ (8)
NONINVERTING INPUT
+
+ IN ₃ (9)
(14) OUT ₃
ALD4303ADB
ALD4303DB
ALD4303ASB
ALD4303SB
* Contact factory for industrial temperature range
ALD4303APB
ALD4303PB
INVERTING INPUT
- IN ₄ (10)
NONINVERTING INPUT
+ IN ₄ (11)
-
+
(12)
(13) OUT ₄
© 2005 Advanced Linear Devices, Inc. 415 Tasman Drive, Sunnyvale, California 94089 -1706 Tel: [phone] Fax: [phone] http://www.aldinc.com