Advanced Linear Devices Inc ALD2303ADA, ALD2303SA, ALD2303PA, ALD2303ASA, ALD2303APA Datasheet
ADVANCED
LINEAR
DEVICES, INC.
ALD2303A/ALD2303
DUAL PRECISION MICROPOWER CMOS VOLTAGE COMPARATOR WITH DRIVER
GENERAL DESCRIPTION
The ALD2303A/ALD2303 is a precision monolithic high performance
dual 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; very low power dissipation of 7.5µA 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 ALD2303A/ALD2303 can be used in connection with other voltage
comparator circuits such as the ALD2301/ALD2302/ALD4302 voltage
comparators. The output can be connected to a higher external voltage
+
than V
.
The ALD2303A/ALD2303 is ideal for high precision micropower voltage
comparator applications, especially low level signal detection circuits
requiring low standby power, yet retaining high output current
capability.
APPLICATIONS
• Sensor detection circuits
• PCMCIA instruments
• MOSFET driver
• High source impedance voltage
comparison circuits
• Multiple limit window comparator
• Power supply voltage monitor
• Photodetector sensor circuit
• High speed LED driver
• Oscillators
• Battery operated instruments
• Remote signal detection
• Multiple relay drivers
FEATURES
• 3V, 5V and 12V supply
• Guaranteed to drive 200Ω loads
• Fanout of 30LS TTL loads
• Guaranteed maximum supply current of
20µA for each comparator
• Pinout of LM193 type industry standard
comparators
• Extremely low input bias currents -- 10pA
• Virtually eliminates source impedance
effects
• Single (+5V) and dual supply (±5V)
operation
• CMOS, NMOS and TTL compatible
• Open drain wired-OR outputs
• High output sinking current -- 60mA
• Low supply current spikes
• High gain -- 100V/mV
PIN CONFIGURATION
OUT
-IN
+IN
GND
1
1
2
1
3
1
4
DA, PA, SA PACKAGE
TOP VIEW
+
8
V
7
OUT
2
-IN
6
2
+IN
5
2
BENEFITS
• Extremely low power and high precision combination
• Built-in high input impedance buffer
BLOCK DIAGRAM
• Built-in output driver with up to 60mA sink current
+
ORDERING INFORMATION
Operating Temperature Range *
-55°C to +125°C0°C to +70°C0°C to +70°C
INVERTING INPUT
-IN
NONINVERTING INPUT
+IN
(2)
1
(3)
1
8-Pin Q8-Pin 8-Pin
CERDIP Small Outline Plastic Dip
Package Package (SOIC) Package
INVERTING INPUT
-IN
NONINVERTING INPUT
+IN
(6)
2
(5)
2
ALD2303A DA ALD2303A SA ALD2303A PA
ALD2303 DA ALD2303 SA ALD2303 PA
* Contact factory for industrial temperature range
© 1998 Advanced Linear Devices, Inc. 415 T asman Drive, Sunnyvale, California 94089 -1706 Tel: (408) 747-1155 Fax: (408) 747-1286 http://www .aldinc.com
(8) V
+
V
(4) GND
(1) OUT 1
(7) OUT
2
ABSOLUTE MAXIMUM RATINGS
Supply voltage, V
Differential input voltage range -0.3V to V
Power dissipation 600 mW
Operating temperature range PA, SA package 0°C to +70°C
Storage temperature range -65°C to +150°C
Lead temperature, 10 seconds +260°C
+
13.2V
+
+0.3V
DA package -55°C to +125°C
OPERATING ELECTRICAL CHARACTERISTICS
T
= 25°C V+= +5V unless otherwise specified
A
2303A 2303 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
15 40 15 40 µARLOAD = ∞
Current
Voltage A
VD
10 100 10 100 V/mV RLOAD ≥15KΩ
Gain
Input Offset V
OS
Voltage 2.0 5.0 0°C ≤ T
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
0.5 1.0 1.5 4.0 mV RLOAD =1.5KΩ
A
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
Current
OL
24 60 24 60 mA V
OL
=1.0V
High Level
Leakage I
LH
0.01 20 0.01 20 nA VOH = 5.0V
Current
≤ 70°C
Response R
Time
2
t
RP
6.5 6.5 µsC
=50KΩ
L
= 15pF
L
10mV Input
Step/10mV
Overdrive
RL = 50KΩ
55µsC
= 15pF
L
TTL- Level Input
Step
Notes:
1
Consists of junction leakage currents
2
Sample tested parameters
ALD2303A/ALD2303 Advanced Linear Devices 14
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