ADVANCED
LINEAR
DEVICES, INC.
ALD2301A/ALD2301B
ALD2301C/ALD2301
DUAL PRECISION CMOS VOLTAGE COMPARATOR WITH OPEN DRAIN DRIVER
GENERAL DESCRIPTION
FEATURES
The ALD2301A/ALD2301B/ALD2301C/ALD2301 is a monolithic high
performance dual voltage comparator built with advanced silicon gate
CMOS technology. It features very high typical input impedance of
1012Ω; 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.
• Fanout of 30LS TTL loads
• Low supply current of 110µA typical
• Functional equivalent to LM193 industry
standard comparators
• 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
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/ALD2301C/ALD2301 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.
APPLICATIONS
•
•
•
•
•
•
•
•
PIN CONFIGURATION
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
BENEFITS
• Low power and high precision combination
• Built-in high input impedance buffer
• Built-in output driver with up to 60mA sink current
1
8
V+
-IN 1
2
7
OUT 2
+IN 1
3
6
-IN 2
GND
4
5
+IN 2
SAL, PAL, DA PACKAGES
ORDERING INFORMATION (“L” suffix for lead free version)
0°C to +70°C
OUT1
BLOCK DIAGRAM
Operating Temperature Range *
0°C to +70°C
-55°C to +125°C
8-Pin
Small Outline
Package (SOIC)
8-Pin
Plastic Dip
Package
(8) V+
INVERTING INPUT
-IN 1 (2)
8-Pin
CERDIP
Package
(1) OUT 1
NONINVERTING INPUT
+IN 1 (3)
V+
ALD2301ASAL
ALD2301BSAL
ALD2301CSAL
ALD2301SAL
ALD2301APAL
ALD2301BPAL
ALD2301CPAL
ALD2301PAL
ALD2301ADA
ALD2301BDA
ALD2301CDA
ALD2301DA
INVERTING INPUT
-IN 2 (6)
(7) OUT 2
NONINVERTING INPUT
+IN 2 (5)
(4) GND
* Contact factory for leaded (non-RoHS) or high temperature versions.
©2018 Advanced Linear Devices, Inc., Vers. 2.1
www.aldinc.com
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ABSOLUTE MAXIMUM RATINGS
Supply voltage, V+
Differential input voltage range
Power dissipation
Operating temperature range SAL, PAL packages
DA package
Storage temperature range
Lead temperature, 10 seconds
10.6V
-0.3V to V+ +0.3V
600 mW
0°C to +70°C
-55°C to +125°C
-65°C to +150°C
+260°C
OPERATING ELECTRICAL CHARACTERISTICS
TA = 25°C V+ = +5V unless otherwise specified
Parameter
Symbol Min
2301A
Typ
Max
Min
2301B
Typ
Max
Min
2301C
Typ Max
Min
±1.5
3
±5
10
±1.5
3
Supply
Voltage
VS
V+
Supply
Current
IS
Voltage Gain
AVD
Input Offset
Voltage
VOS
Input Offset
Current1
IOS
10
200
10
200
10
400
Input Bias
Current1
IB
10
200
10
200
10
400
Common
Mode Input
Voltage
2
Range
VICR
±1.5
3
±5
10
110
50
±1.5
3
180
150
±5
10
110
50
150
2
2.5
-0.3
Low Level
VOL
Output Voltage
V+ -1.5
0.15
180
110
50
150
5
5.8
-0.3
0.4
V+ -1.5
0.15
180
2301
Typ
110
50
0.4
V+ -1.5
0.15
Dual Supply
Single Supply
180
µA
RLOAD = ∞
V/mV RLOAD ≥ 15KΩ
mV
mV
10
200
pA
10
200
pA
0.15
Test
Conditions
V
V
10
11
-0.3
0.4
Unit
±5
10
150
20
20
-0.3
Max
RLOAD ≥ 1.5KΩ
0°C ≤ TA ≤ +70°C
V+ -1.5
V
0.4
V
ISINK = 12mA
VINPUT = 1V
Differential
mA
VOL = 1.0 V
nA
VOH = 5.0 V
Low Level
Output
Current
IOL
High Level
Leakage
Current
IOH
.01
tRP
650
650
650
650
ns
RL = 5.1KΩ
CL = 15pF
100mV Input
Step/5mV
Overdrive
300
300
300
300
ns
RL = 5.1KΩ
Response
2
Time
24
60
24
20
60
.01
24
20
60
.01
24
20
60
.01
20
CL =15pF
TTL - Level
Input Step
Notes :
1
2
Consists of junction leakage currents.
Sample tested parameters.
ALD2301A/ALD2301B/
ALD2301C/ALD2301
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TYPICAL PERFORMANCE CHARACTERISTICS
SATURATION VOLTAGE
vs.TEMPERATURE
TRANSFER FUNCTION
+6.0
VS = ± 2.5V
ISINK = 50mA
1.2
OUTPUT VOLTAGE (V)
SATURATION VOLTAGE (V)
1.4
1.0
0.8
0.6
0.4
0.2
TA = 25°C
VS = ±6V
RL = 5.1K
0.0
-6.0
0
-25
0
25
50
75
100
-2.5
125
DIFFERENTIAL INPUT VOLTAGE (mV)
COMMON - MODE VOLTAGE REFERRED
TO SUPPLY VOLTAGE
RESPONSE TIME FOR VARIOUS
INPUT OVERDRIVES
V+
INPUT
VOLTAGE (mV)
0.5
VS = ± 2.5V
-0.5
-1.0
≈
≈
0.5
V-0.5
-55
-25
0
25
50
75
100
0
VIN
≈
5.1K
+
-
VOUT
0V
+2.5
5mV
10mV
20mV
2mV
-2.5
125
0.0
0.2
0.4
INPUT
VOLTAGE (mV)
VS = ±2.5V
0.9
100
1.0
1.2
1.4
OUTPUT
VOLTAGE (V)
85°C
25°C
-25°C
-55°C
0.0
15
30
45
60
OUTPUT SINK CURRENT (mA)
TA = 25°C
VS = ±2.5V
V+
VIN
0
≈
125°C
ALD2301A/ALD2301B/
ALD2301C/ALD2301
0.8
RESPONSE TIME FOR VARIOUS
INPUT OVERDRIVES
1.2
0
0.6
TIM E (µs)
1.5
0.3
≈
V-
50mV
0.0
SATURATION VOLTAGE vs.
SINK CURRENT
0.6
TA = 25°C
VS = ±2.5V
V+
100
TEMPERATURE (°C)
OUTPUT SATURATION
VOLTAGE (V)
+2.5
0.0
TEM PERATURE (°C)
OUTPUT
VOLTAGE (V)
COMMON - MODE VOLTAGE LIMITS (V)
-55
0V
5.1K
+
-
VOUT
V-
2mV
+2.5
≈
5mV
10mV
20mV
50mV
0.0
-2.5
75
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
TIME ( µS)
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TYPICAL PERFORMANCE CHARACTERISTICS (cont'd)
TOTAL SUPPLY CURRENT vs.
TOTAL SUPPLY VOLTAGE
SUPPLY CURRENT vs. TEMPERATURE
200
+
160
VS = ±2.5V
No Load
All comparators
180
TA = 25°C
RL = ∞
SUPPLY CURRENT (µA)
SUPPLY CURRENT ( µA)
V+
140
120
100
80
160
140
120
100
80
60
2.0
6.0
4.0
12.0
10.0
8.0
-55
-25
SUPPLY VOLTAGE (V)
0
25
50
100
75
125
TEMPERATURE (°C)
INPUT OFFSET VOLTAGE vs.
TEMPERATURE
OFFSET VOLTAGE (mV)
3.0
2.8
VCM = 0V
VS = ± 2.5V
2.6
2.4
2.2
2.0
1.8
-55
-25
0
50
25
75
100
125
TEMPERATURE (°C)
TYPICAL APPLICATIONS
DUAL LIMIT WINDOW COMPARATOR
DUAL LIMIT PHOTO-DETECTOR
MONITOR
VExternal
V+
V+
1/2 ALD2301
VREF(HIGH)
V+
RLOAD
+
VOLTAGE COMPARATOR WITH
COMPLEMENTARY OUTPUTS
BUZZER
1/2 ALD2301
-
VLIMIT2
LED
VIN
1/2 ALD2301
MINIMUM RLOAD = 1.5KΩ
1/2 ALD2301
-
LIGHT
-
-
+
+
VREF(LOW)
Q
VREF
VOUT
VIN
+
PHOTODETECTOR
VLIMIT 1
+
+
-
Q
1/2 ALD2301
1/2 ALD2301
OUTPUT HIGH FOR VIN < VREF(HIGH)
AND VIN > VREF(LOW)
ALD2301A/ALD2301B/
ALD2301C/ALD2301
LED turns on as photo-detector voltage reaches
VLIMIT1. Both LED and horn turns on as
photo-detector voltage reaches VLIMIT2.
VEXTERNAL = +12V V+ = +5V.
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SOIC-8 PACKAGE DRAWING
8 Pin Plastic SOIC Package
E
Millimeters
Dim
S (45°)
D
A
Min
1.35
Max
1.75
Min
0.053
Max
0.069
A1
0.10
0.25
0.004
0.010
b
0.35
0.45
0.014
0.018
C
0.18
0.25
0.007
0.010
D-8
4.69
5.00
0.185
0.196
E
3.50
4.05
0.140
0.160
1.27 BSC
e
A
A1
e
Inches
0.050 BSC
H
5.70
6.30
0.224
0.248
L
0.60
0.937
0.024
0.037
ø
0°
8°
0°
8°
S
0.25
0.50
0.010
0.020
b
S (45°)
H
L
ALD2301A/ALD2301B/
ALD2301C/ALD2301
C
ø
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PDIP-8 PACKAGE DRAWING
8 Pin Plastic DIP Package
Millimeters
E
E1
D
S
A2
A1
e
b
A
L
Dim
Min
Max
Min
Max
A
3.81
5.08
0.105
0.200
A1
0.38
1.27
0.015
0.050
A2
1.27
2.03
0.050
0.080
b
0.89
1.65
0.035
0.065
b1
0.38
0.51
0.015
0.020
c
0.20
0.30
0.008
0.012
D-8
9.40
11.68
0.370
0.460
E
5.59
7.11
0.220
0.280
E1
7.62
8.26
0.300
0.325
e
2.29
2.79
0.090
0.110
e1
7.37
7.87
0.290
0.310
L
2.79
3.81
0.110
0.150
S-8
1.02
2.03
0.040
0.080
0°
15°
0°
15°
ø
b1
Inches
c
e1
ALD2301A/ALD2301B/
ALD2301C/ALD2301
ø
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CERDIP-8 PACKAGE DRAWING
8 Pin CERDIP Package
E E1
Millimeters
D
A1
s
A
L
L2
b
b1
e
L1
Min
Inches
Dim
A
3.55
Max
5.08
0.140
Min
Max
0.200
A1
1.27
2.16
0.050
0.085
b
0.97
1.65
0.038
0.065
b1
0.36
0.58
0.014
0.023
C
0.20
0.38
0.008
0.015
D-8
--
10.29
--
0.405
E
5.59
7.87
0.220
0.310
E1
7.73
8.26
0.290
0.325
e
2.54 BSC
0.100 BSC
e1
7.62 BSC
0.300 BSC
L
3.81
5.08
0.150
0.200
L1
3.18
--
0.125
--
L2
0.38
1.78
0.015
0.070
S
--
2.49
--
0.098
Ø
0°
15°
0°
15°
C
e1
ALD2301A/ALD2301B/
ALD2301C/ALD2301
ø
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