ALD2303_10 Datasheet, PDF (1/9 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
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; 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 volt-
age comparator applications, especially low level signal detection
circuits requiring low standby power, yet retaining high output current
capability.
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
FEATURES
• 3V, 5V, and 10V 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
-- typically 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 -- typically 60mA
• Low supply current spikes
• High gain -- 100V/mV
PIN CONFIGURATION
OUT ₁ 1
-IN ₁ 2
+IN ₁ 3
GND 4
8 V+
7 OUT ₂
6 -IN 2
5 +IN 2
BENEFITS
• Extremely low power and high precision combination
• Built-in high input impedance buffer
• Built-in output driver with up to 60mA sink current
SAL, PAL, DA PACKAGES
BLOCK DIAGRAM
ORDERING INFORMATION (“L” suffix for lead free version)
Operating Temperature Range *
0°C to +70°C
0°C to +70°C
-55°C to +125°C
8-Pin
Small Outline
Package (SOIC)
8-Pin
Plastic Dip
Package
8-Pin
CERDIP
Package
ALD2303ASAL
ALD2303SAL
ALD2303APAL
ALD2303APAL
ALD2303ADA
ALD2303DA
* Contact factory for leaded (non-RoHS) or high temperature versions.
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
Rev 2.0 ©2010 Advanced Linear Devices, Inc. 415 Tasman Drive, Sunnyvale, CA 94089-1706 Tel: [phone] Fax: [phone]
www.aldinc.com