Advanced Linear Devices Inc ALD4302SB, ALD4302PB, ALD4302DB, ALD4302ASB, ALD4302APB Datasheet
...
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 10
12
Ω; 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 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
-IN
+IN
-IN
+IN
1
2
01
+
3
V
4
1
5
1
6
2
7
2
DB, PB, SB PACKAGE
14
13
12
10
03
04
GND
11
+IN
4
-IN
4
9
+IN
3
-IN
8
3
BLOCK DIAGRAM
+
V
(3)
INVERTING INPUT
(4)
1
(5)
1
(6)
2
(7)
2
- IN
(8)
3
+ IN
(9)
3
- IN
(10)
4
(11)
4
ORDERING INFORMATION
Operating Temperature Range*
-55°C to +125°C0°C to 70°C0°C to +70°C
14-Pin 14-Pin 14-Pin
CERDIP Small Outline Plastic Dip
Package Package( SOIC) Package
ALD4302A DB ALD4302A SB ALD4302A PB
ALD4302 DB ALD4302 SB ALD4302 PB
* Contact factory for industrial temperature range
- IN
NONINVERTING INPUT
+ IN
INVERTING INPUT
- IN
NONINVERTING INPUT
+ IN
INVERTING INPUT
NONINVERTING INPUT
INVERTING INPUT
NONINVERTING INPUT
+ IN
© 1998 Advanced Linear Devices, Inc. 415 T asman Drive, Sunnyvale, California 94089 -1706 Tel: (408) 747-1 155 Fax: (408) 747-1286 http://www .aldinc.com
-
(2) OUT
(1) OUT
(14) OUT
(13) OUT
1
2
3
4
+
-
+
-
+
-
+
(12)
ABSOLUTE MAXIMUM RATINGS
Supply voltage, V
Differential input voltage range -0.3V to V
Power dissipation 600 mW
Operating temperature range PB, SB package 0°C to +70°C
Storage temperature range -65°C to +150°C
Lead temperature, 10 seconds +260°C
+
13.2V
+
+0.3V
DB package -55°C to +125°C
OPERATING ELECTRICAL CHARACTERISTICS
= 25°C V+= +5V unless otherwise specified
T
A
4302A 4302 Test
Parameter Symbol Min Typ Max Min Typ Max Unit Conditions
Voltage V
Supply V
S
+
±1.5 ±6 ±1.5 ±6 V Dual Supply
3 12 3 12 V Single Supply
Supply I
S
600 1000 600 1000 µARLOAD = ∞
Current
Voltage A
Gain
Input Offset V
VD
OS
30 100 30 100 V/mV RLOAD ≥15KΩ
510mVRLOAD =1.5KΩ
Voltage
Input Offset I
Current
Input Bias I
Current
OS
1
B
1
Common
Mode Input V
Voltage
2
Range
ICR
-0.3 V
Low Level I
Output V
OL
10 200 10 200 pA 0°C ≤ TA ≤ 70°C
800 800
10 200 10 200 pA 0°C ≤ TA ≤ 70°C
1000 1000
+
-1.5
0.18 0.4 0.18 0.4 V V
-0.3 V+ -1.5 V
SINK
INPUT
=12mA
=1V
Voltage Differential
Low Level
Output I
OL
24 60 24 60 mA V
OL
=1.0V
Current
High Level
Output V
OH
3.5 4.5 3.5 4.5 V IOH = -2mA
Voltage
Response R
Time
2
t
RP
400 400 ns CL = 15pF
= 5.1KΩ
L
100mV Input
Step/5mV
Overdrive
= 5.1KΩ
R
120 120 ns C
L
= 15pF
L
TTL- Level Input
Step
Notes:1 Consists of junction leakage currents
2
Sample tested parameters
ALD4302/ALD4302 Advanced Linear Devices 2
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