ALD2301_10 Datasheet, PDF (1/7 Pages) Advanced Linear Devices – DUAL PRECISION CMOS VOLTAGE COMPARATOR WITH OPEN DRAIN DRIVER

ADVANCED
LINEAR
DEVICES, INC.
ALD2301A/ALD2301B
ALD2301C/ALD2301
DUAL PRECISION CMOS VOLTAGE COMPARATOR WITH OPEN DRAIN DRIVER
GENERAL DESCRIPTION
The ALD2301A/ALD2301B/ALD2301C/ALD2301 is a 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; fast response time of 300ns;
very low power dissipation of 55µA per comparator; and single (+5V)
or dual (±5V) power supply operation.
The input voltage range includes ground, making this comparator
ideal for low level signal detection with high source impedance. The
outputs are open-drain configuration, allowing maximum application
flexibility, such as wired-OR connection. The outputs can be con-
nected to a higher external voltage than V⁺.
The ALD2301A/ALD2301B/ALD2301C/ALD2301 is ideal for a great
variety of voltage comparator applications, especially low level signal
detection circuits requiring low standby power, yet retaining high
output current capability as needed.
FEATURES
• Fanout of 30LS TTL loads
• Low supply current of 110µA typical
• Functional equivalent to LM193 industry
standard comparators
• Extremely low input bias currents
-- typically 10pA
• Virtually eliminates source impedance
effects
• Low operating supply voltage of 3V to 10V
• Single (+5V) and dual supply (±5V) operation
• High speed for both large signal and low
level signals -- 300ns typical for TTL inputs
• CMOS, NMOS and TTL compatible
• Wired-OR open drain outputs
• High output sinking current -- typically 60mA
• Low supply current spikes
APPLICATIONS
• High source impedance voltage comparison circuits
• Dual limit window comparator
• Power supply voltage monitor
• Photo-detector sensor circuit
• Relay or LED driver
• Oscillators
• Battery operated instruments
• Remote signal detection
BENEFITS
• Low power and high precision combination
• Built-in high input impedance buffer
• Built-in output driver with up to 60mA sink current
PIN CONFIGURATION
OUT₁ 1
-IN ₁ 2
+IN ₁ 3
GND 4
8 V⁺
7 OUT ₂
6 -IN ₂
5 +IN 2
SAL, PAL, DA PACKAGES
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
ALD2301ASAL
ALD2301BSAL
ALD2301CSAL
ALD2301SAL
ALD2301APAL
ALD2301BPAL
ALD2301CPAL
ALD2301PAL
ALD2301ADA
ALD2301BDA
ALD2301CDA
ALD2301DA
* Contact factory for leaded (non-RoHS) or high temperature versions.
BLOCK DIAGRAM
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