ALD2303A_07 Datasheet, PDF (1/6 Pages) Advanced Linear Devices – DUAL PRECISION MICROPOWER CMOS VOLTAGE COMPARATOR WITH DRIVER

ADVANCED
LINEAR
DEVICES, INC.
ALD2303A/ALD2303
DUAL PRECISION MICROPOWER CMOS VOLTAGE COMPARATOR WITH DRIVER
GENERAL DESCRIPTION
The ALD2303A/ALD2303 is a precision monolithic high performance
dual voltage comparator built with advanced silicon gate CMOS tech-
nology. It features very high typical input impedance of 10¹²â„¦; low
input bias current of 10pA; very low power dissipation of 7.5µA per
comparator; 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 ALD2303A/ALD2303 can be used in connection with other voltage
comparator circuits such as the ALD2301/ALD2302/ALD4302 voltage
comparators. The output can be connected to a higher external voltage
than V^+.
The ALD2303A/ALD2303 is ideal for high precision micropower voltage
comparator applications, especially low level signal detection circuits
requiring low standby power, yet retaining high output current
capability.
FEATURES
• 3V, 5V and 12V supply
• Guaranteed to drive 200Ω loads
• Fanout of 30LS TTL loads
• Guaranteed maximum supply current of
20µA for each comparator
• Pinout of LM193 type industry standard
comparators
• 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
• High output sinking current -- 60mA
• Low supply current spikes
• High gain -- 100V/mV
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
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
• Extremely low power and high precision combination
• Built-in high input impedance buffer
• Built-in output driver with up to 60mA sink current
BLOCK DIAGRAM
ORDERING INFORMATION ("L" suffix for lead free version)
Operating Temperature Range *
-55°C to +125°C
0°C to +70°C
0°C to +70°C
INVERTING INPUT
-IN 1 (2)
NONINVERTING INPUT
+IN 1 (3)
(8) V+
(1) OUT 1
8-Pin
CERDIP
Package
ALD2303ADA
ALD2303DA
8-Pin
Small Outline
Package (SOIC)
ALD2303ASA
ALD2303ASAL
ALD2303SA
ALD2303SAL
8-Pin
Plastic Dip
Package
ALD23023PA
ALD2303APAL
ALD2303PA
ALD2303PAL
INVERTING INPUT
-IN ₂ (6)
NONINVERTING INPUT
+IN 2 (5)
V⁺
(7) OUT 2
(4) GND
* Contact factory for industrial temperature range
© 2007 Advanced Linear Devices, Inc. 415 Tasman Drive, Sunnyvale, California 94089 -1706 Tel: [phone] Fax: [phone] http://www.aldinc.com