ald2332 Advanced Linear Devices Inc (ALD), ald2332 Datasheet

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ald2332

Manufacturer Part Number
ald2332
Description
Dual Precision Cmos Voltage Comparator With Push-pull Driver
Manufacturer
Advanced Linear Devices Inc (ALD)
Datasheet
GENERAL DESCRIPTION
The ALD2332A/ALD2332B/ALD2332 is a monolithic high performance
dual precision voltage comparator built with advanced silicon gate EPAD®
CMOS technology intended for high precision analog applications. The
ALD2332A/ALD2332B/ALD2332 offers ultra-low input offset voltages and
currents at its input pre-amplifier, precision voltage comparator and high-
current output driver integrated on-chip, in one industry standard pinout 8
Lead PDIP or SOIC package. Primary features include: very high typical
input impedance of 10
time of 520ns with only 10mV input step signal; very low power dissipation
of 175 A per comparator; single (+5V) or dual ( 5V) power supply
operation; and 50 mA push-pull output drivers.
The input voltage range includes ground, which makes these comparators
ideal for single supply low level signal detection with high source imped-
ance. The outputs can source and sink current allowing for application
flexibility. They can be used in either wired-OR connection without pull-
up resistor or push-pull configuration. ALD2332A/ALD2332B/ALD2332
can also be used in wired-OR connection with other open drain circuits
such as the ALD2331/ALD2303 voltage comparators.
The ALD2332A/ALD2332B/ALD2332 voltage comparators are ideal for a
great variety of precision analog voltage comparator applications, espe-
cially in low level signal detection circuits which require low standby power
and high output current.
* Contact factory for industrial temperature range
© 2008 Advanced Linear Devices, Inc. 415 Tasman Drive, Sunnyvale, California 94089 -1706 Tel: (408) 747-1155 Fax: (408) 747-1286 http://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
BENEFITS
• Simple precision reference voltage setting
• On-chip input pre-amplifier and output buffers
• Precision voltage comparison without pre-amplifier
• Eliminate need for second power supply
• Eliminate pull-up resistor
ORDERING INFORMATION
8-Pin Small Outline
Package (SOIC)
ALD2332A SAL
ALD2332B SAL
ALD2332 SAL
0 C to +70 C
A
L
D
INEAR
DVANCED
EVICES,
Operating Temperature Range *
12
I
NC.
; low input bias current of 10pA; fast response
DUAL PRECISION CMOS VOLTAGE COMPARATOR
0 C to +70 C
8-Pin Plastic Dip
Package
ALD2332A PAL
ALD2332B PAL
ALD2332 PAL
WITH PUSH-PULL DRIVER
FEATURES
• Guaranteed to drive 200 loads
• Fanout of 30LS TTL loads
• Low supply current of 175 A each comparator
• Pinout of LM193 type industry standard
• Extremely low input bias currents -- 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 --
• CMOS, NMOS and TTL compatible
• Push-pull outputs-current sourcing/ sinking
• High output sinking current -- 50mA
• Low supply current spikes
PIN CONFIGURATION
BLOCK DIAGRAM
OUT
NONINVERTING INPUT
NONINVERTING INPUT
voltage comparators
180ns for TTL inputs and 400ns for 20mV
overdrive
+IN
GND
-IN
INVERTING INPUT
INVERTING INPUT
1
1
1
ALD2332A/ALD2332B/ALD2332
1
3
4
2
+IN
+IN
-IN
-IN
PAL, SAL PACKAGE
1
1
2
2
(2)
(3)
(6)
(5)
TOP VIEW
(8) V
V
(4) GND
+
+
8
7
5
6
(1) OUT
(7) OUT
+IN
V
OUT
-IN
+
2
2
1
2
2

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ald2332 Summary of contents

Page 1

... ALD2331/ALD2303 voltage comparators. The ALD2332A/ALD2332B/ALD2332 voltage comparators are ideal for a great variety of precision analog voltage comparator applications, espe- cially in low level signal detection circuits which require low standby power and high output current ...

Page 2

... Output Voltage 2 Response Time 400 t RP 180 Common Mode CMRR 80 Rejection Ratio Power Supply Rejection PSRR 75 Ratio Notes: 1 Consists of junction leakage currents ALD2332A/ALD2332B/ALD2332 2332B Max Min Typ Max Min 500 350 500 350 50 150 50 ...

Page 3

... SUPPLY VOLTAGE (V) NORMALIZED INPUT OFFSET VOLTAGE vs. TEMPERATURE + -55 - TEMPERATURE ( C) ALD2332A/ALD2332B/ALD2332 COMMON - MODE VOLTAGE REFERRED 0 -0.5 -1.0 0.5 V- -0.5 -55 -25 +2.5 SUPPLY CURRENT vs. TEMPERATURE 550 500 450 400 350 300 250 200 10 ...

Page 4

... INPUT = Differential 0.3 0.2 0 0.0 - -25 AMBIENT TEMPERATURE ( C) HIGH LEVEL OUTPUT VOLTAGE vs. TEMPERATURE 10.0 8 +10V 6.0 4.0 2 +4V 0.0 -55 - AMBIENT TEMPERATURE ( C) ALD2332A/ALD2332B/ALD2332 INPUT BIAS CURRENT vs. TEMPERATURE 1000 12mA OL 100 -55 SATURATION VOLTAGE vs. SINK CURRENT 3.0 V 2.5 2 +3.5V 1 +5V 1.0 0.5 = +10V 0 125 100 INPUT OFFSET VOLTAGE vs ...

Page 5

... COMMON MODE REJECTION RATIO vs. TEMPERATURE 90.0 85.0 80.0 75.0 70.0 65.0 60.0 - AMBIENT TEMPERATURE ( C) RESPONSE TIME FOR VARIOUS INPUT OVERDRIVES 6.0 5.0 4.0 3.0 20mV 5mV 2.0 10mV 1.0 50mV 2mV 0 +5V -1.0 0.0 0.3 0.6 0.9 1.2 1.5 1.8 2.1 2.4 2.7 TIME ( S) ALD2332A/ALD2332B/ALD2332 RESPONSE TIME FOR VARIOUS INPUT 6 +5V 5.0 50mV R = 5.1K L 4.0 20mV 3.0 10mV 2.0 1.0 0.0 -1.0 0.0 0.3 0.6 0.9 1.2 1.5 1.8 2.1 2.4 2.7 3.0 75 100 125 POWER SUPPLY REJECTION RATIO 90.0 85.0 1mV 80 5. 15pF 75.0 ...

Page 6

... PRECISION SINGLE SUPPLY VOLTAGE COMPARATOR WITH DIRECT RELAY DRIVER + ZERO CROSSING DETECTOR + -5V DOUBLE DUAL LIMIT WINDOW COMPARATOR ALD2332A/ALD2332B/ALD2332 TYPICAL APPLICATIONS PRECISION SINGLE SUPPLY VOLTAGE COMPARATOR WITH DIRECT RELAY DRIVER 5V RELAY - 50K V REF V OUT V IN ...

Page 7

... RESPONSE TIME MEASUREMENT CIRCUIT Response time is defined as the interval between the application of an input step function and the instant when the output reaches 50% of its maximum value as measured by the following test circuit: 10X INPUT STEP ALD2332A/ALD2332B/ALD2332 TYPICAL APPLICATIONS DOUBLE DUAL PRECISON PHOTO V+ V ...

Page 8

... The high output sinking current of 60mA for each output offers flexibility in many applications separate buffer or driver would not be necessary to drive the intended load. However, as the circuit normally operates close to ambient temperature due to its very low power consumption, thermal effects caused by large output current transients must be considered in certain applications. ALD2332A/ALD2332B/ALD2332 TYPICAL APPLICATIONS +10V ...

Page 9

... REF(LOW 1.5K LOAD OUTPUT HIGH FOR V AND V > REF(LOW) PRECISON VOLTAGE COMPARATOR WITH +/-5V 100K 0.1 F 100K PRECISION VOLTAGE COMPARATOR WITH OUTPUT LEVEL - ALD2332A/ALD2332B/ALD2332 TYPICAL APPLICATIONS VOLTAGE LEVEL TRANSLATOR LOAD V REF V V OUT IN V REF V REF <V IN REF(HIGH) Output V SUPPLY AND OUTPUT LEVEL SHIFT ...

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