ALD4302_10 Datasheet, PDF (1/9 Pages) Advanced Linear Devices – QUAD PRECISION CMOS VOLTAGE COMPARATOR WITH PUSH-PULL DRIVER

ADVANCED
LINEAR
DEVICES, INC.
ALD4302A/ALD4302
QUAD PRECISION CMOS VOLTAGE COMPARATOR WITH PUSH-PULL DRIVER
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 10¹²â„¦; low input bias current of 10pA;
fast response time of 120ns; very low power dissipation of 150µA 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.
FEATURES
• Guaranteed to drive 200Ω loads
• Fanout of 30LS TTL loads
• Low supply current of 150µA 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
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
ALD4302ASBL
ALD4302SBL
ALD4302APBL
ALD4302PBL
ALD4302ADB
ALD4302DB
* Contact factory for leaded (non-RoHS) or high temperature versions.
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
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