ALD4302A_05 Datasheet, PDF (1/6 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 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 compara-
tor; 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 ALD4302 can be used in wired-OR connection with
other open drain circuits such as the ALD2301 and ALD2303 voltage
comparators.
The 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 30 LS TTL loads
• Low supply current of 150µA each comparator
• Extremely low input bias currents -- 10pA
• Virtually eliminates source impedance effects
• Low operating supply voltage of 3V to 12V
• 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 -- 60mA
• Low supply current spikes
• High gain -- 100V/mV
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
12 GND
-IN ₁ 4
+IN ₁ 5
-IN ₂ 6
11 +IN ₄
10 -IN ₄
9 +IN ₃
+IN ₂
7
8
DB, PB, SB PACKAGE
-IN ₃
BLOCK DIAGRAM
V+ ₍₃₎
INVERTING INPUT
-
- IN 1 (4)
NONINVERTING INPUT
+
+ IN ₁ (5)
(2) OUT 1
ORDERING INFORMATION
Operating Temperature Range*
-55°C to +125°C
0°C to 70°C
0°C to +70°C
14-Pin
CERDIP
Package
14-Pin
Small Outline
Package( SOIC)
14-Pin
Plastic Dip
Package
ALD4302A DB
ALD4302 DB
ALD4302A SB
ALD4302 SB
* Contact factory for industrial temperature range
ALD4302A PB
ALD4302 PB
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)
-
+
-
+
-
+
(12)
(1) OUT 2
(14) OUT 3
(13) OUT 4
© 2005.1 Advanced Linear Devices, Inc. 415 Tasman Drive, Sunnyvale, California 94089 -1706 Tel: [phone] Fax: [phone] http://www.aldinc.com