Advanced Linear Devices Inc ALD2301SA, ALD2301PA, ALD2301DA, ALD2301CSA, ALD2301CPA Datasheet
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ADVANCED
LINEAR
DEVICES, INC.
ALD2301A/ALD2301B
ALD2301/ALD2301C
DUAL PRECISION CMOS VOLTAGE COMPARATOR WITH OPEN DRAIN DRIVER
GENERAL DESCRIPTION
The ALD2301A/ALD2301B/ALD2301/ALD2301C is a monolithic high
performance dual voltage comparator built with advanced silicon gate
CMOS technology. It features very high typical input impedance of
12
10
Ω; low input bias current of 10pA; fast response time of 300ns; very
low power dissipation of 55µA per comparator; 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,
such as wired-OR connection. The outputs can be connected to a
higher external voltage than V
+
.
The ALD2301A/ALD2301B/ALD2301/ALD2301C is ideal for a great
variety of voltage comparator applications, especially low level signal
detection circuits requiring low standby power, yet retaining high
output current capability as needed.
FEATURES
• Fanout of 30 LS TTL loads
• Low supply current of 110µA typical
• Functional equivalent to LM193 industry
standard comparators
• Extremely low input bias currents -- 10pA typical
• 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 signal and low level
signals -- 300ns typical for TTL inputs
• CMOS, NMOS and TTL compatible
• Wired-OR open drain outputs
• High output sinking current -- 60mA typical
• Low supply current spikes
APPLICATIONS
• High source impedance voltage
comparison circuits
• Dual limit window comparator
• Power supply voltage monitor
• Photo-detector sensor circuit
• Relay or LED driver
• Oscillators
• Battery operated instruments
• Remote signal detection
PIN CONFIGURATION
1
OUT
1
2
-IN
1
3
+IN
1
GND
4
TOP VIEW
DA, PA, SA PACKAGE
BLOCK DIAGRAM
+
V
8
7
OUT
2
6
-IN
2
+IN
5
2
+
ORDERING INFORMATION
Operating Temperature Range *
-55°C to +125°C0°C to +70°C0°C to +70°C
8-Pin 8-Pin 8-Pin
CERDIP Small Outline Plastic Dip
Package Package (SOIC) Package
INVERTING INPUT
-IN
NONINVERTING INPUT
+IN
INVERTING INPUT
NONINVERTING INPUT
-IN
+IN 2 (5)
(2)
1
(3)
1
(6)
2
(8) V
+
V
(4) GND
(1) OUT 1
(7) OUT
ALD 2301A DA ALD2301A SA ALD2301A PA
ALD 2301B DA ALD 2301B SA ALD2301B PA
ALD 2301 DA ALD 2301 SA ALD2301 PA
ALD 2301C DA ALD 2301C SA ALD2301C 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
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
= 25°C V
T
A
Parameter Symbol Min Typ Max Min Typ Max Min Typ Max Min Typ Max Unit Conditions
Voltage V
Supply
Supply I
Current
Voltage Gain A
Input Offset V
Voltage
Input Offset I
Current
Input Bias I
Current
Common
Mode Input V
Voltage
Range
Low Level V
Output Voltage V
+
= +5V unless otherwise specified
2301 2301A 2301B 2301C Test
+
S
VD
OS
1
1
2
OS
B
ICR
OL
3 12 3 12 3 12 3 12 V
110 180 110 180 110 180 110 180 µAR
50 150 50 150 50 150 50 150 V/mV R
10 2 5 20 mV R
10 200 10 200 10 200 10 400 pA
10 200 10 200 10 200 10 400 pA
-0.3 V
+
-1.5 -0.3 V+ -1.5 -0.3 V+ -1.5 -0.3 V+ -1.5 V
0.15 0.4 0.15 0.4 0.15 0.4 0.15 0.4 V I
LOAD
LOAD
LOAD
SINK
INPUT
= ∞
≥ 15KΩ
≥ 1.5KΩ
= 12mA
= 1V
Differential
Low Level
Output I
Current
OL
24 60 24 60 24 60 24 60 mA VOL = 1.0 V
High Level
Leakage I
OH
.01 20 .01 20 .01 20 .01 20 nA VOH = 5.0 V
Current
Response t
2
Time
RP
650 650 650 650 ns RL = 5.1KΩ
CL = 15pF
100mV Input
Step/5mV
Overdrive
300 300 300 300 ns R
= 5.1KΩ
L
C
=15pF
L
TTL - Level
Input Step
Notes :1 Consists of junction leakage currents.
2
Sample tested parameters.
7-2 Advanced Linear Devices ALD2301A/ALD2301B
ALD2301/ALD2301C
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