ALD ALD4301SBL Quad precision cmos voltage comparator with open drain driver Datasheet

ADVANCED
LINEAR
DEVICES, INC.
ALD4301A/ALD4301
QUAD PRECISION CMOS VOLTAGE COMPARATOR WITH OPEN DRAIN DRIVER
GENERAL DESCRIPTION
APPLICATIONS
The ALD4301A/ALD4301 is a monolithic high performance quad
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; high output drive and single
(+5V) or dual (±5V) power supply operation.
• High source impedance voltage
comparison circuits
• Dual/Quad limit window comparator
• Power supply voltage monitor
• Photo-detector sensor circuit
• Relay or LED driver
• Oscillators
• Battery operated instruments
• Remote signal detection
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. The outputs can be connected to a higher external voltage
than V+ and used in a wired-OR connection with other open drain
circuits such as the ALD2301 and ALD2303. They can also be used
with push-pull output types, such as the ALD2302 and ALD4302
voltage comparators, simultaneously with open drain comparators
using a common V+. The ALD4301A/ALD4301 is ideal for a great
variety of voltage comparator applications, especially detection circuits requiring very low input currents and low standby power, yet
retaining high output current capability.
PIN CONFIGURATION
02
1
14
03
01
2
13
04
V+
3
12
GND
FEATURES
-IN 1
4
11
+IN 4
•
•
•
•
•
•
•
•
+IN 1
5
10
-IN 4
-IN 2
6
9
+IN 3
+IN 2
7
8
-IN 3
•
•
•
•
•
Fanout of 30LS TTL loads
Low supply current of 55µA/comparator typical
Pinout/Functional equivalent to LM393 types
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
High gain
ORDERING INFORMATION (“L” suffix for lead free version)
Operating Temperature Range *
0°C to +70°C
0°C to +70°C
-55°C to +125°C
14-Pin
Small Outline
Package (SOIC)
14-Pin
Plastic Dip
Package
14-Pin
CERDIP
Package
ALD4301ASBL
ALD4301SBL
ALD4301APBL
ALD4301PBL
ALD4301ADB
ALD4301DB
* Contact factory for leaded (non-RoHS) or high temperature versions.
SBL, PBL, DB PACKAGES
BLOCK DIAGRAM
V+
INVERTING INPUT
- IN 1 (4)
-
NONINVERTING INPUT
+ IN 1 (5)
+
INVERTING INPUT
- IN 2 (6)
-
NONINVERTING INPUT
+ IN 2 (7)
+
INVERTING INPUT
- IN 3 (8)
-
NONINVERTING INPUT
+ IN 3 (9)
+
INVERTING INPUT
- IN 4 (10)
-
NONINVERTING INPUT
+ IN 4 (11)
+
(3)
(2) OUT 1
(1) OUT 2
(14) OUT 3
(13) OUT 4
(12)
Rev 2.0 ©2010 Advanced Linear Devices, Inc. 415 Tasman Drive, Sunnyvale, CA 94089-1706 Tel: (408) 747-1155 Fax: (408) 747-1286
www.aldinc.com
ABSOLUTE MAXIMUM RATINGS
Supply voltage, V+
Differential input voltage range
Power dissipation
Operating temperature range SBL, PBL packages
DB 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
4301A
Symbol
Supply
Voltage
VS
V+
Supply
Current
IS
Voltage
Gain
AVD
Input Offset
Voltage
VOS
Input Offset
Current 1
IOS
0.1
30
Input Bias
Current 1
IB
0.1
30
Common
Mode Input
Voltage
Range 2
VICR
Min
Typ
4301
Parameter
±1.5
3
220
50
Max
Min
±5
10
±1.5
3
350
150
Typ
Unit
Conditions
±5
10
V
V
Dual Supply
Single Supply
350
µA
No load
V/mV
RLOAD ≥ 15KΩ
10
mV
RLOAD ≥ 1.5KΩ
0.1
30
pA
0.1
30
pA
V+ -1.5
V
0.4
V
ISINK =12mA
VINPUT =1V
Differential
mA
VOL =1.0V
nA
VOH = 5.0 V
220
50
150
5
V+-1.5
-0.3
Test
Max
-0.3
Low Level
Output
Voltage
VOL
Low Level
Output
Current
IOL
High Level
Leakage
Current
ILH
0.1
tRP
650
650
ns
300
300
ns
Response
Time 2
Notes:
1
2
0.15
24
0.4
60
0.15
24
20
60
0.1
20
RL =5.1KΩ
CL = 15pF
100mV Input
Step/5mV
Overdrive
RL = 5.1KΩ
CL = 15pF
TTL- Level Input
Step
Consists of junction leakage currents
Sample tested parameters
ALD4301A/ALD4301
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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
-55
-25
0
25
50
75
100
-2.5
125
INPUT
VOLTAGE (mV)
0.5
VS = ± 2.5V
-0.5
0
V+
VIN
100
≈
≈
≈
0.5
V-0.5
-55
VOUT
0V
≈
V-
-25
0
25
50
75
100
+2.5
5mV
50mV
0.0
10mV
20mV
2mV
-2.5
0.0
125
0.2
0.4
SATURATION VOLTAGE vs.
SINK CURRENT
INPUT
VOLTAGE (mV)
VS = ±2.5V
1.2
0.9
100
OUTPUT
VOLTAGE (V)
25°C
-25°C
-55°C
0.0
ALD4301A/ALD4301
1.2
1.4
VIN
5.1K
+
-
≈
0V
VOUT
V-
2mV
≈
+2.5
85°C
0
1.0
TA = 25°C
VS = ±2.5V
V+
0
125°C
0.3
0.8
RESPONSE TIME FOR VARIOUS
INPUT OVERDRIVES
1.5
0.6
0.6
TIM E (µs)
TEMPERATURE (°C)
OUTPUT SATURATION
VOLTAGE (V)
TA = 25°C
VS = ±2.5V
5.1K
+
-
-1.0
OUTPUT
VOLTAGE (V)
COMMON - MODE VOLTAGE LIMITS (V)
RESPONSE TIME FOR VARIOUS
INPUT OVERDRIVES
COMMON - MODE VOLTAGE REFERRED
TO SUPPLY VOLTAGE
V+
+2.5
0.0
DIFFERENTIAL INPUT VOLTAGE (mV)
TEM PERATURE (°C)
15
30
45
60
OUTPUT SINK CURRENT (mA)
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
TIM E (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
0
-25
SUPPLY VOLTAGE (V)
25
50
75
100
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
100
75
125
TEMPERATURE (°C)
TYPICAL APPLICATIONS
QUAD LIMIT WINDOW COMPARATOR
QUAD LIMIT PHOTO-DETECTOR
MONITOR
VExternal
V+
V+
1/2 ALD4301
VREF(HIGH)
V+
BUZZER
RLOAD
+
VOLTAGE COMPARATOR WITH
COMPLEMENTARY OUTPUTS
+
Q
-
1/2 ALD4301
1/2 ALD4301
LED
-
VLIMIT2
VOUT
+
-
+
VIN
VIN
LIGHT
VREF(LOW)
VREF
1/2 ALD4301
PHOTODETECTOR
VLIMIT 1
+
Q
+
-
1/2 ALD4301
1/2 ALD4301
MINIMUM RLOAD = 1.5KΩ
OUTPUT HIGH FOR VIN < VREF(HIGH)
AND VIN > VREF(LOW)
ALD4301A/ALD4301
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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TYPICAL APPLICATIONS (cont'd)
DOUBLE DUAL LIMIT WINDOW COMPARATOR
ZERO CROSSING DETECTOR
ALD4301
+3V
+12V
+12V
50K
VOUT
VIN
50K
+
+12V
VH2
+
-3V
1/4 ALD4301
VH1
+
+12V
VIN
MULTIPLE RELAY DRIVE
+5V
+12V
47K
+5V
+
VL1
VREF
+
VIN
+
VL2
50K
1/4 ALD4301
ALD4301
VL1 and VH1 first limit window send warning.
VL2 and VH2 second limit window execute
system cutoff.
VOLTAGE LEVEL TRANSLATOR
V+ = +10V
50K
VREF
VOUT
VIN
+
1/4 ALD4301
VREF
= 1.4V for TTL input
VREF
=
V+
2
for CMOS input
Output VOUT swings from rail-to-rail
ALD4301A/ALD4301
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TYPICAL APPLICATIONS (cont'd)
PUSH-PULL COMPLEMENTARY POWER MOSFET DRIVER
+12V
+12V
P- Channel VP 02
Power MOSFET
+12V
R
10K
+
V1
2A Source
VIN
2A Sink
40K
+12V
R ≥ 50 KΩ
R
+
V2
N - Channel VN 01
Power MOSFET
10K
This circuit eliminates crossover current in the
complementary power transistors. The outputs can
be used to source and sink different loads or tied
together to provide push-pull drive of the same load.
1/2 ALD4301
TIME DELAY GENERATOR
V+
RF1
1/4 ALD4301
1/4 ALD4301
RELAY 3
V+
VREF
VIN
+
RT
RF2
1/4 ALD4301
RELAY 2
+
+
CT
RF3
1/4 ALD4301
RELAY 1
+
RF4
RELAY 1 turns off followed by
RELAY 2 and then RELAY 3 with
fixed sequence and time delays
selectrd by ratios RF1, RF2 , RF3
and RF4.
Design & Operating Notes:
1. In order to minimize stray oscillation, all unused inputs must be tied to ground.
2. The input bias and offset currents are essentially input protection diode reverse bias leakage currents, and are typically less than 1pA at room
temperature. These currents are a function of ambient temperature, and would have to be considered in applications where very high source
impedance or high accuracy are involved.
3. The high output sinking current of 60mA for each output offers flexibility in many applications, as a 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.
ALD4301A/ALD4301
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SOIC-14 PACKAGE DRAWING
14 Pin Plastic SOIC Package
Millimeters
E
S (45°)
Dim
Min
A
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-14
8.55
8.75
0.336
0.345
E
3.50
4.05
0.140
0.160
1.27 BSC
e
D
A
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
A1
e
b
S (45°)
H
L
ALD4301A/ALD4301
C
ø
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PDIP-14 PACKAGE DRAWING
14 Pin Plastic DIP Package
Millimeters
E
E1
D
S
A2
A1
A
L
Min
Inches
Dim
A
3.81
Max
5.08
Min
0.105
Max
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-14
17.27
19.30
0.680
0.760
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-14
1.02
2.03
0.040
0.080
ø
0°
15°
0°
15°
e
b
b1
c
e1
ALD4301A/ALD4301
ø
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CERDIP-14 PACKAGE DRAWING
14 Pin CERDIP Package
Millimeters
E E1
D
A1
s
A
L
L1
L2
b
b1
e
Inches
Dim
A
Min
Max
Min
3.55
5.08
0.140
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-14
--
19.94
--
0.785
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
ALD4301A/ALD4301
ø
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