ALD4301 Datasheet, PDF (1/9 Pages) Advanced Linear Devices – QUAD PRECISION CMOS VOLTAGE COMPARATOR WITH OPEN DRAIN DRIVER

ADVANCED
LINEAR
DEVICES, INC.
ALD4301A/ALD4301
QUAD PRECISION CMOS VOLTAGE COMPARATOR WITH OPEN DRAIN DRIVER
GENERAL DESCRIPTION
The ALD4301A/ALD4301 is a monolithic high performance quad
voltage comparator built with advanced silicon gate CMOS technol-
ogy. 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; high output drive 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. 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 ALD4301A/ALD4301 is ideal for a great
variety of voltage comparator applications, especially detection cir-
cuits requiring very low input currents and low standby power, yet
retaining high output current capability.
FEATURES
• Fanout of 30LS TTL loads
• Low supply current of 55µA/comparator typical
• Pinout/Functional equivalent to LM393 types
• 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
• High gain
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
ALD4301ASBL
ALD4301SBL
ALD4301APBL
ALD4301PBL
ALD4301ADB
ALD4301DB
* Contact factory for leaded (non-RoHS) or high temperature versions.
APPLICATIONS
• High source impedance voltage
comparison circuits
• Dual/Quad limit window comparator
• Power supply voltage monitor
• Photo-detector sensor circuit
• Relay or LED driver
• Oscillators
• Battery operated instruments
• Remote signal detection
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