ALD4303_10 Datasheet, PDF (1/9 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 1012Ω; 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,
and 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 the ALD2301 and ALD2303.
They can also be used with push-pull output types such as the
ALD2302 and ALD4302 voltage comparators simultaneously with
open drain comparators using a common V+. The ALD4303A/ALD4303
is ideal for a great variety of voltage comparator applications, espe-
cially micropower detection circuits requiring very low input currents,
high output currents and low standby power.
FEATURES
• 3V, 5V and 10V 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 -- typically 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 -- typically 60mA
• Low supply current spikes
• High gain -- 100V/mV
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
14-Pin
Small Outline
Package (SOIC)
14-Pin
Plastic Dip
Package
14-Pin
CERDIP
Package
ALD4303ASBL
ALD4303SBL
ALD4303APBL
ALD4303PBL
ALD4303ADB
ALD4303DB
* Contact factory for leaded (non-RoHS) or high temperature versions.
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
02 1
14 03
01 2
13 04
V⁺ 3
-IN ₁ 4
+IN ₁ 5
-IN ₂ 6
+IN ₂ 7
12 GND
11 +IN ₄
10 -IN ₄
9 +IN ₃
8 -IN ₃
SBL, PBL, DB PACKAGES
BLOCK DIAGRAM
INVERTING INPUT
- IN 1 (4)
NONINVERTING INPUT
+ IN 1 (5)
INVERTING INPUT
- IN 2 (6)
NONINVERTING INPUT
+ IN 2 (7)
INVERTING INPUT
- IN 3 (8)
NONINVERTING INPUT
+ IN 3 (9)
INVERTING INPUT
- IN 4 (10)
NONINVERTING INPUT
+ IN 4 (11)
V+ (3)
-
(2) OUT 1
+
-
(1) OUT 2
+
-
(14) OUT 3
+
-
(13) OUT 4
+
(12)
Rev 2.0 ©2010 Advanced Linear Devices, Inc. 415 Tasman Drive, Sunnyvale, CA 94089-1706 Tel: [phone] Fax: [phone]
www.aldinc.com