ALD ALD4303ASB Quad precision micropower cmos voltage comparator with driver Datasheet

ADVANCED
LINEAR
DEVICES, INC.
ALD4303A/ALD4303
QUAD PRECISION MICROPOWER CMOS VOLTAGE COMPARATOR WITH DRIVER
GENERAL DESCRIPTION
FEATURES
The ALD4303A/ALD4303 is a precision monolithic high performance
quad voltage comparator with open drain output built with advanced
silicon gate CMOS technology. It features very high typical input
impedance of 1012Ω; low input bias current of 10pA; very low power
dissipation of 7.5µA per comparator; micropower operation; high
output drive and single (+5V) or dual (±5V) power supply operation.
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3V, 5V and 12V supply
Guaranteed to drive 200Ω loads
Fanout of 30LS TTL loads
Guaranteed maximum supply current of
22µA per comparator
Industry standard pinout of LM393 type
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
Compatible with push-pull outputs
High output sinking current -- 60mA
Low supply current spikes
High gain -- 100V/mV
The input voltage range includes ground, making this comparator ideal
for single supply low level signal detection with high source impedance.
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The ALD4303A/ALD4303 can be used in connection with other voltage
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comparator circuits such as the ALD2301/ALD2302/ALD4302 voltage
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comparators. The outputs can be connected to a higher external
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voltage than V+ and used in a wired-OR connection with other open
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drain circuits such as ALD2301/ALD2303. They can also be used with
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push-pull output types such as ALD2302/ALD4302 voltage compara•
tors simultaneously with open drain comparators using a common V+.
The ALD4303A/ALD4303 is ideal for a great variety of voltage com- PIN CONFIGURATION
parator applications, especially micropower detection circuits requiring
very low input currents, high output currents and low standby power.
02
1
14
03
APPLICATIONS
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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
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
DB, PB, SB PACKAGE
BLOCK DIAGRAM
BENEFITS
V+
• Extremely low power and high precision combination
• Built-in high input impedance buffer
• Built-in output driver with up to 60mA sink current
ORDERING INFORMATION
Operating Temperature Range *
-55°C to +125°C
0°C to +70°C
0°C to +70°C
14-Pin
CERDIP
Package
14-Pin
Small Outline
Package (SOIC)
14-Pin
Plastic Dip
Package
ALD4303ADB
ALD4303DB
ALD4303ASB
ALD4303SB
ALD4303APB
ALD4303PB
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
* Contact factory for industrial temperature range
(12)
© 2005 Advanced Linear Devices, Inc. 415 Tasman Drive, Sunnyvale, California 94089 -1706 Tel: (408) 747-1155 Fax: (408) 747-1286 http://www.aldinc.com
ABSOLUTE MAXIMUM RATINGS
Supply voltage, V+
Differential input voltage range
Power dissipation
Operating temperature range PB, SB package
DB package
Storage temperature range
Lead temperature, 10 seconds
13.2V
-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
T A = 25°C V+= +5V unless otherwise specified
4303A
Parameter
Symbol
Voltage
Supply
VS
V+
Supply
Current
IS
Voltage
Gain
AVD
Input Offset
Voltage
VOS
Input Offset
Current 1
Input Bias
Current 1
Common
Mode Input
Voltage
Range 2
Min
Typ
±1.5
3
50
10
4303
Max
Min
±6
12
±1.5
3
90
100
Typ
50
10
Test
Max
Unit
Conditions
±6
12
V
V
Dual Supplies
Single Supply
90
µA
RLOAD = ∞
4 comparators
V/mV
RLOAD ≥15KΩ
RLOAD =1.5KΩ
0°C ≤ TA ≤ 70°C
100
2
5.0
7.0
4
10.0
12.0
mV
I OS
0.1
30
800
0.1
30
800
pA
IB
0.1
30
1000
0.1
30
1000
pA
V+ -1.5
V
0.4
V
ISINK =12mA
VINPUT =1V
Differential
mA
VOL =1.0V
nA
VOH = 5.0V
VICR
V+ -1.5
-0.3
-0.3
0°C ≤ TA ≤ 70°C
0°C ≤ TA ≤ 70°C
Low Level
Output
Voltage
VOL
Low Level
Output
Current
I OL
High Level
Leakage
Current
I LH
0.1
t RP
6.5
6.5
µs
5
5
µs
Response
Time 2
Notes:
1
2
0.18
24
0.4
60
0.18
24
20
60
0.1
Consists of junction leakage currents
Sample tested parameters
ALD4303A/ALD4303
Advanced Linear Devices
20
RL =50KΩ
CL = 15pF
10mV Input
Step/10mV
Overdrive
RL = 50KΩ
CL = 15pF
TTL- Level Input
Step
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 = 50K
0.0
-6.0
0
-55
-25
0
25
50
75
100
125
RESPONSE TIME FOR VARIOUS
INPUT OVERDRIVES
COMMON - MODE LIMITS (V)
VS = ± 2.5V
V+
-0.5
≈
≈
0.5
V-
OUTPUT
VOLTAGE (V)
INPUT
VOLTAGE (mV)
COMMON - MODE VOLTAGE REFERRED
TO SUPPLY VOLTAGE
-0.5
-55
-25
0
25
50
75
100
0
V+
VIN
100
≈
VOUT
0V
≈
V-
+2.5
TTL
0.0
10mV
-2.5
0
125
1
2
3
INPUT
VOLTAGE (mV)
VS = ±2.5V
1.2
0.9
125°C
85°C
OUTPUT
VOLTAGE (V)
0.3
0.0
100
7
TA = 25°C
VS = ±2.5V
V+
VIN
50K
+
-
0
≈
0V
VOUT
≈
V-
30
45
60
5mV
10mV
20mV
50mV
TTL
0.0
-2.5
75
OUTPUT SINK CURRENT (mA)
ALD4303A/ALD4303
6
+2.5
25°C
-25°C
-55°C
15
5
RESPONSE TIME FOR VARIOUS
INPUT OVERDRIVES
1.5
0
4
TIM E (µs)
SATURATION VOLTAGE vs.
SINK CURRENT
0.6
TA = 25°C
VS = ±2.5V
50K
+
-
TEMPERATURE (°C)
OUTPUT SATURATION
VOLTAGE (V)
+2.5
0.0
DIFFERENTIAL INPUT VOLTAGE (mV)
0.5
-1.0
-2.5
TEM PERATURE (°C)
0.0
0.1
0.2
0.3
0.4
TIM E (µs)
Advanced Linear Devices
0.5
0.6
0.7
TYPICAL PERFORMANCE CHARACTERISTICS
RESPONSE TIME FOR
REPRESENTATIVE SAMPLES
TOTAL SUPPLY CURRENT vs.
TOTAL SUPPLY VOLTAGE
10
+
100
TA = 25°C
RL = ∞
RESPONSE TIME (µs)
SUPPLY CURRENT ( µA)
V+
10
tdLH
VS = ±2.5V
TA = 25°C
5
1
0
2.0
6.0
4.0
10.0
8.0
12.0
INPUT OFFSET VOLTAGE vs. SUPPLY
VOLTAGE REPRESENTATIVE SAMPLES
6
INPUT OFFSET VOLTAGE (mV)
+3
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
2
125
4
TEMPERATURE (°C)
RESPONSE TIME FOR
REPRESENTATIVE SAMPLES
8
SUPPLY VOLTAGE (V)
10
12
0.6
OUTPUT LOW VOLTAGE (V)
VS = ±2.5V
TA = 25°C
tdHL
5
TA = 25°C
IOL= 12mA
0.5
0.4
0.3
0.2
0.1
0.0
0
50
100
150
200
SAMPLES
ALD4303A/ALD4303
6
OUTPUT LOW VOLTAGE
vs. SUPPLY VOLTAGE
10
RESPONSE TIME (µs)
200
150
SAMPLES
NORMALIZED INPUT OFFSET VOLTAGE
vs. TEMPERATURE
NORMALIZED INPUT OFFSET
VOLTAGE (mV)
100
50
SUPPLY VOLTAGE (V)
Advanced Linear Devices
2
4
6
8
SUPPLY VOLTAGE (V)
10
12
TYPICAL APPLICATIONS
ZERO CROSSING DETECTOR
DOUBLE QUAD LIMIT WINDOW COMPARATOR
ALD4303
+3V
+12V
+12V
50K
VOUT
VIN
50K
+
+12V
VH2
+
-3V
1/4 ALD4303
VH1
+
+12V
VIN
+12V
47K
MULTIPLE RELAY DRIVE
+
+5V
+5V
VL1
VREF
+
+
VIN
VL2
50K
1/4 ALD4303
ALD4303
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 ALD4303
VREF
= 1.4V for TTL input
VREF
=
V+
2
for CMOS input
Output VOUT swings from rail-to-rail
ALD4303A/ALD4303
Advanced Linear Devices
TYPICAL APPLICATIONS
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 ALD4303
TIME DELAY GENERATOR
V+
RF1
1/4 ALD4303
1/4 ALD4303
RELAY 3
V+
VREF
VIN
+
RT
RF2
1/4 ALD4303
RELAY 2
+
+
CT
RF3
1/4 ALD4303
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 1 pA 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.
ALD4303A/ALD4303
Advanced Linear Devices
RM
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