ALD ALD4302PBL Quad precision cmos voltage comparator with push-pull driver Datasheet

ADVANCED
LINEAR
DEVICES, INC.
ALD4302A/ALD4302
QUAD PRECISION CMOS VOLTAGE COMPARATOR WITH PUSH-PULL DRIVER
GENERAL DESCRIPTION
APPLICATIONS
The ALD4302A/ALD4302 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 120ns; very low power dissipation of 150µA per
comparator; and single (+5V) or dual (±5V) power supply operation.
• 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
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 pushpull configuration. The ALD4302A/ALD4302 can be used in wired-OR
connections with other open drain circuits such as the ALD2301 and
ALD2303 voltage comparators.
The ALD4302A/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
•
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•
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Guaranteed to drive 200Ω loads
Fanout of 30LS TTL loads
Low supply current of 150µA each comparator
Extremely low input bias currents -- typically 10pA
Virtually eliminates source impedance effects
Low operating supply voltage of 4V to 10V
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 -- typically 60mA
Low supply current spikes
High gain -- 100V/mV
ORDERING INFORMATION (“L” suffix for lead free version)
0°C to +70°C
Operating Temperature Range *
0°C to +70°C
-55°C to +125°C
14-Pin
Small Outline
Package (SOIC)
ALD4302ASBL
ALD4302SBL
14-Pin
Plastic Dip
Package
ALD4302APBL
ALD4302PBL
14-Pin
CERDIP
Package
ALD4302ADB
ALD4302DB
* Contact factory for leaded (non-RoHS) or high temperature versions.
PIN CONFIGURATION
02
1
14
03
01
2
13
04
V+
3
12
GND
-IN 1
4
11
+IN 4
+IN 1
5
10
-IN 4
-IN 2
6
9
+IN 3
+IN 2
7
8
-IN 3
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
4302A
Symbol
Supply
Voltage
VS
V+
Supply
Current
IS
Voltage
Gain
AVD
Input Offset
Voltage
VOS
Input Offset
Current 1
IOS
10
200
800
Input Bias
Current 1
IB
10
200
1000
Common
Mode Input
Voltage
Range 2
VICR
Min
Typ
4302
Parameter
±2
4
600
30
Max
Min
±5
10
±2
4
1000
100
Typ
Unit
Conditions
±5
10
V
V
Dual Supply
Single Supply
µA
RLOAD = ∞
V/mV
RLOAD ≥15KΩ
10
mV
RLOAD =1.5KΩ
10
200
800
pA
10
200
1000
pA
0°C ≤ TA ≤ 70°C
V+ -1.5
V
0°C ≤ TA ≤ 70°C
0.4
V
ISINK =12mA
VINPUT =1V
Differential
600
30
V+-1.5
1000
100
5
-0.3
Test
Max
-0.3
Low Level
Output
Voltage
VOL
Low Level
Output
Current
IOL
24
60
24
60
mA
VOL =1.0V
High Level
Output
Voltage
VOH
3.5
4.5
3.5
4.5
V
IOH = -2mA
400
400
ns
120
120
ns
Response
Time 2
Notes:
tRP
1
2
0.18
0.4
0.18
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
ALD4302A/ALD4302
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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
RESPONSE TIME FOR VARIOUS
INPUT OVERDRIVES
INPUT
VOLTAGE (mV)
COMMON - MODE VOLTAGE REFERRED
TO SUPPLY VOLTAGE
VS = ± 2.5V
-0.5
0
VIN
100
V+
≈
0V
≈
≈
0.5
V-0.5
-55
≈
V-
-25
0
25
50
75
100
+2.5
TTL
5mV
50mV
0.0
10mV
20mV
-2.5
0.0
125
0.1
0.2
0.3
INPUT
VOLTAGE (mV)
1.5
VS = ±2.5V
1.2
0.9
125°C
85°C
OUTPUT
VOLTAGE (V)
0.3
0.0
15
100
30
45
0
VIN
60
V+
+
-
≈
0.7
0V
VOUT
≈
V-
5mV
10mV
20mV
50mV
TTL
0.0
-2.5
75
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
TIM E (µs)
OUTPUT SINK CURRENT (mA)
ALD4302A/ALD4302
0.6
TA = 25°C
VS = ±2.5V
+2.5
25°C
-25°C
-55°C
0
0.5
RESPONSE TIME FOR VARIOUS
INPUT OVERDRIVES
SATURATION VOLTAGE vs.
SINK CURRENT
0.6
0.4
TIM E (µs)
TEMPERATURE (°C)
OUTPUT SATURATION
VOLTAGE (V)
TA = 25°C
VS = ±2.5V
VOUT
+
-
-1.0
OUTPUT
VOLTAGE (V)
COMMON - MODE LIMITS (V)
0.5
V+
+2.5
0.0
DIFFERENTIAL INPUT VOLTAGE (mV)
TEM PERATURE (°C)
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TYPICAL PERFORMANCE CHARACTERISTICS (cont'd)
SUPPLY CURRENT vs. TEMPERATURE
TOTAL SUPPLY CURRENT vs.
TOTAL SUPPLY VOLTAGE
1000
+
1000
VS = ±2.5V
No Load
All comparators
900
TA = 25°C
RL = ∞
SUPPLY CURRENT (µA)
SUPPLY CURRENT ( µA)
V+
800
600
400
200
800
700
600
500
400
300
2.0
6.0
4.0
-55
12.0
10.0
8.0
0
-25
100
75
125
6
INPUT OFFSET VOLTAGE (mV)
+3
NORMALIZED INPUT OFFSET
VOLTAGE (mV)
50
INPUT OFFSET VOLTAGE vs. SUPPLY
VOLTAGE REPRESENTATIVE SAMPLES
NORMALIZED INPUT OFFSET VOLTAGE
vs. TEMPERATURE
VCM = 0V
VS = ±2.5V
+2
+1
0
-1
-2
-3
TA = 25°C
4
2
0
-2
-4
-6
-55
-25
0
25
50
75
100
125
2
4
6
8
SUPPLY VOLTAGE (V)
TEMPERATURE (°C)
OUTPUT HIGH VOLTAGE
vs. SUPPLY VOLTAGE
10
12
OUTPUT LOW VOLTAGE
vs. SUPPLY VOLTAGE
V+ -0.6
0.6
TA = 25°C
IOH = -2mA
V+ -0.5
OUTPUT LOW VOLTAGE (V)
OUTPUT HIGH VOLTAGE FROM V+ (V)
25
TEMPERATURE (°C)
SUPPLY VOLTAGE (V)
V+ -0.4
V+ -0.3
V+ -0.2
V+ -0.1
V+
TA = 25°C
IOL= 12mA
0.5
0.4
0.3
0.2
0.1
0.0
2
ALD4302A/ALD4302
4
6
8
SUPPLY VOLTAGE (V)
10
12
Advanced Linear Devices
2
4
6
8
SUPPLY VOLTAGE (V)
10
12
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TYPICAL APPLICATIONS
ZERO CROSSING DETECTOR
DOUBLE DUAL LIMIT WINDOW COMPARATOR
+5V
+12V
+12V
VOUT
VIN
+
50K
+12V
VH2
+
-5V
1/4 ALD4302
VH1
+
+12V
47K
VIN
MULTIPLE RELAY DRIVE
+
+5V
VL1
+5V
VREF
VIN
+
+
VL2
50K
1/4 ALD4302
ALD4302
VL1 and VH1 first limit window send warning.
VL2 and VH2 second limit window execute
system cutoff.
VOLTAGE LEVEL TRANSLATOR
V+ = +10V
VREF
VOUT
VIN
+
1/4 ALD4302
VREF
= 1.4V for TTL input
VREF
=
V+
2
for CMOS input
Output VOUT swings from rail- to- rail
ALD4302A/ALD4302
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TYPICAL APPLICATIONS (cont'd)
PUSH-PULL COMPLEMENTARY POWER MOSFET DRIVER
+12V
1/4 ALD4302
+12V
P- Channel VP 02
Power MOSFET
+12V
10K
V1
+
2A Source
VIN
2A Sink
40K
+12V
+
V2
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.
N - Channel VN 01
Power MOSFET
10K
1/4 ALD4302
TIME DELAY GENERATOR
V+
RF1
1/4 ALD4302
1/4 ALD4302
V1
V+
VREF
VIN
+
RT
RF2
1/4 ALD4302
V2
+
+
CT
RF3
1/4 ALD4302
V3
+
RF4
Design & Operating Notes:
1. As each output sources up to 10mA in the output high state, the output stage of a wired-OR low output circuit must be able to sink this current and still
provide desired output voltage levels. For TTL output levels, this consideration limits the number to a maximum of three ALD4302 outputs wired-OR
together.
2. In order to minimize stray oscillation, all unused inputs must be tied to ground.
3. 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.
4. 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.
ALD4302A/ALD4302
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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
ALD4302A/ALD4302
C
ø
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0PDIP-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
ALD4302A/ALD4302
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
ALD4302A/ALD4302
ø
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