
Rev 2.0 2010 Advanced Linear Devices, Inc. 415 Tasman Drive, Sunnyvale, CA 94089-1706 Tel: (408) 747-1155 Fax: (408) 747-1286
www.aldinc.com
APPLICATIONS
MOSFET driver
High source impedance voltage
comparison circuits
Multiple limit window comparator
Power supply voltage monitor
Photo-detector sensor circuit
High speed LED driver
Oscillators
Battery operated instruments
Remote signal detection
Multiple relay drivers
FEATURES
Guaranteed to drive 200 loads
Fanout of 30LS TTL loads
Low supply current of 150A each comparator
Extremely low input bias currents -- typically 10pA
Virtually eliminates source impedance effects
Low operating supply voltage of 4V to 10V
Single (+5V) and dual supply (±5V) operation
High speed for both large and small signals -
120ns for TTL inputs and 400ns for 5mV overdrive
CMOS, NMOS and TTL compatible
Push-pull outputs
High output sinking current -- typically 60mA
Low supply current spikes
High gain -- 100V/mV
GENERAL DESCRIPTION
The ALD4302A/ALD4302 is a monolithic high performance quad voltage
comparator built with advanced silicon gate CMOS technology. It features
very high typical input impedance of 1012; low input bias current of 10pA;
fast response time of 120ns; very low power dissipation of 150A 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
outputs can source and sink current, allowing application flexibility, and
can be used in either wired-OR connection without pull up resistor or push-
pull configuration. The ALD4302A/ALD4302 can be used in wired-OR
connections with other open drain circuits such as the ALD2301 and
ALD2303 voltage comparators.
The ALD4302A/ALD4302 is ideal for a great variety of precision voltage
comparator applications, especially low level signal detection circuits
requiring low standby power, yet retaining high output current capability.
ADVANCED
LINEAR
DEVICES, INC.
QUAD PRECISION CMOS VOLTAGE COMPARATOR WITH PUSH-PULL DRIVER
ALD4302A/ALD4302
PIN CONFIGURATION
+IN 1
-IN 2
+IN 2
03
04
GND
-IN 4
+IN 3
-IN 3
02
01
-IN 1
+IN 4
1
14
V+
2
3
13
12
11
10
9
8
4
5
6
7
SBL, PBL, DB PACKAGES
BLOCK DIAGRAM
V+
(3)
INVERTING INPUT
- IN 1 (4)
NONINVERTING INPUT
+ IN 1 (5)
NONINVERTING INPUT
+ IN 2 (7)
INVERTING INPUT
- IN 2 (6)
NONINVERTING INPUT
+ IN 3 (9)
INVERTING INPUT
- IN 3 (8)
INVERTING INPUT
- IN 4 (10)
(12)
NONINVERTING INPUT
+ IN 4 (11)
-
+
-
+
-
+
-
+
(2) OUT 1
(1) OUT 2
(14) OUT 3
(13) OUT 4
Operating Temperature Range *
0°C to +70°C0°C to +70°C
-55°C to +125°C
14-Pin
Small Outline
Plastic Dip
CERDIP
Package (SOIC)
Package
ALD4302ASBL
ALD4302APBL
ALD4302ADB
ALD4302SBL
ALD4302PBL
ALD4302DB
* Contact factory for leaded (non-RoHS) or high temperature versions.
ORDERING INFORMATION (“L” suffix for lead free version)