ALD2303APAL [ALD]
DUAL PRECISION MICROPOWER CMOS VOLTAGE COMPARATOR WITH DRIVER; 与司机双精密微功耗CMOS电压比较器
| 型号： | ALD2303APAL |
| 厂家： | 
ADVANCED LINEAR DEVICES |
| 描述： | DUAL PRECISION MICROPOWER CMOS VOLTAGE COMPARATOR WITH DRIVER |
| 文件： | 总6页 (文件大小：68K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
ADVANCED
LINEAR
DEVICES, INC.
ALD2303A/ALD2303
DUAL PRECISION MICROPOWER CMOS VOLTAGE COMPARATOR WITH DRIVER
GENERAL DESCRIPTION
FEATURES
• 3V, 5V and 12V supply
The ALD2303A/ALD2303 is a precision monolithic high performance
dual voltage comparator built with advanced silicon gate CMOS tech-
nology. It features very high typical input impedance of 10 Ω; low
input bias current of 10pA; very low power dissipation of 7.5µA per
comparator; and single (+5V) or dual (±5V) power supply operation.
• Guaranteed to drive 200Ω loads
• Fanout of 30LS TTL loads
• Guaranteed maximum supply current of
20µA for each comparator
12
• Pinout of LM193 type industry standard
comparators
• Extremely low input bias currents -- 10pA
• Virtually eliminates source impedance
effects
• Single (+5V) and dual supply (±5V)
operation
The input voltage range includes ground, making this comparator ideal
for single supply low level signal detection with high source impedance.
The ALD2303A/ALD2303 can be used in connection with other voltage
comparator circuits such as the ALD2301/ALD2302/ALD4302 voltage
comparators. The output can be connected to a higher external voltage
+
than V .
• CMOS, NMOS and TTL compatible
• Open drain wired-OR outputs
• High output sinking current -- 60mA
• Low supply current spikes
• High gain -- 100V/mV
The ALD2303A/ALD2303 is ideal for high precision micropower voltage
comparator applications, especially low level signal detection circuits
requiring low standby power, yet retaining high output current
capability.
PIN CONFIGURATION
APPLICATIONS
• Sensor detection circuits
• PCMCIA instruments
• MOSFET driver
• High source impedance voltage
comparison circuits
+
OUT
1
8
V
1
• Multiple limit window comparator
• Power supply voltage monitor
• Photodetector sensor circuit
• High speed LED driver
• Oscillators
-IN
2
3
7
6
OUT
1
1
2
-IN
2
+IN
GND
4
+IN
5
2
• Battery operated instruments
• Remote signal detection
• Multiple relay drivers
TOP VIEW
DA, PA, SA PACKAGE
BENEFITS
• Extremely low power and high precision combination
• Built-in high input impedance buffer
BLOCK DIAGRAM
• Built-in output driver with up to 60mA sink current
+
(8) V
ORDERING INFORMATION ("L" suffix for lead free version)
INVERTING INPUT
-IN (2)
1
Operating Temperature Range *
(1) OUT
1
2
NONINVERTING INPUT
+IN (3)
-55°C to +125°C
0°C to +70°C
0°C to +70°C
1
8-Pin
CERDIP
Package
8-Pin
Small Outline
Package (SOIC)
8-Pin
Plastic Dip
Package
+
V
INVERTING INPUT
-IN (6)
2
(7) OUT
NONINVERTING INPUT
+IN (5)
2
ALD2303ADA
ALD2303DA
ALD2303ASA
ALD2303ASAL
ALD2303SA
ALD23023PA
ALD2303APAL
ALD2303PA
(4) GND
ALD2303SAL
ALD2303PAL
* Contact factory for industrial temperature range
© 2007 Advanced Linear Devices, Inc. 415Tasman Drive, Sunnyvale, California 94089 -1706 Tel:(408) 747-1155 Fax:(408) 747-1286 http://www.aldinc.com
ABSOLUTE MAXIMUM RATINGS
+
Supply voltage, V
13.2V
-0.3V to V +0.3V
600 mW
+
Differential input voltage range
Power dissipation
Operating temperature range PA, SA package
DA package
Storage temperature range
0°C to +70°C
-55°C to +125°C
-65°C to +150°C
+260°C
Lead temperature, 10 seconds
OPERATING ELECTRICAL CHARACTERISTICS
+
T = 25°C V = +5V unless otherwise specified
A
2303A
2303
Typ
Test
Parameter
Symbol
Min
Typ
Max
Min
Max
Unit
Conditions
Voltage
Supply
V
V
±1.5
±6
12
±1.5
±6
12
V
V
Dual Supply
Single Supply
S
+
3
3
Supply
Current
I
15
100
1.0
10
40
15
100
3.0
10
40
µA
RLOAD = ∞
S
Voltage
Gain
A
10
10
V/mV
mV
pA
RLOAD ≥15KΩ
RLOAD =1.5KΩ
VD
Input Offset
Voltage
V
2.0
5.0
OS
Input Offset
Current 1
I
200
800
200
800
OS
Input Bias
Current 1
I
B
10
200
1000
10
200
1000
pA
0°C ≤ T ≤ 70°C
A
Common
Mode Input
Voltage
+
+
V
ICR
-0.3
V -1.5
-0.3
V
-1.5
V
0°C ≤ T ≤ 70°C
A
Range2
Low Level
Output
Voltage
ISINK =12mA
VINPUT =1V
Differential
V
0.18
60
0.4
0.18
60
0.4
V
OL
Low Level
Output
Current
I
24
24
mA
nA
µs
V
V
=1.0V
OL
OL
High Level
Leakage
Current
I
0.01
6.5
20
0.01
6.5
20
= 5.0V
LH
OH
Response
Time 2
R =50KΩ
L
C = 15pF
L
t
RP
10mV Input
Step/10mV
Overdrive
RL = 50KΩ
5
5
µs
C = 15pF
L
TTL- Level Input
Step
1
Notes:
Consists of junction leakage currents
Sample tested parameters
2
ALD2303A/ALD2303
Advanced Linear Devices
2
TYPICAL PERFORMANCE CHARACTERISTICS
SATURATION VOLTAGE
vs. TEMPERATURE
TRANSFER FUNCTION
1.4
1.2
+6.0
0.0
V
I
= ± 2.5V
S
= 50mA
T
V
R
= 25°C
= ±6V
= 50K
SINK
A
S
L
1.0
0.8
0.6
0.4
0.2
0
-6.0
-55
-25
0
25
50
75
100
125
-2.5
+2.5
0.0
TEMPERATURE (°C)
DIFFERENTIAL INPUT VOLTAGE (mV)
RESPONSE TIME FOR VARIOUS
INPUT OVERDRIVES
COMMON - MODE VOLTAGE REFERRED
TO SUPPLY VOLTAGE
0.5
V+
0
V+
V
= ± 2.5 V
S
T
= 25°C
A
V
100
IN
V
= ±2.5V
50K
S
+
-
-0.5
-1.0
V
OUT
≈
≈
0V
V-
+2.5
≈
≈
0.5
V-
TTL
0.0
10mV
-2.5
-0.5
-55
-25
0
25
50
75
100 125
0
1
2
3
4
5
6
7
TEMPERATURE (°C)
TIME (µs)
SATURATION VOLTAGE vs.
SINK CURRENT
RESPONSE TIME FOR VARIOUS
INPUT OVERDRIVES
100
0
1.5
1.2
0.9
T
= 25°C
A
V
= ±2.5V
V+
V
= ±2.5V
S
S
V
IN
50K
+
-
V
OUT
≈
≈
0V
125°C
85°C
V-
+2.5
0.6
5mV
TTL
25°C
-25°C
-55°C
10mV
20mV
50mV
0.0
0.3
0.0
-2.5
0
1
2
3
4
5
6
7
0
15
30
45
60
75
TIME (µs)
OUTPUT SINK CURRENT (mA)
ALD2303A/ALD2303
Advanced Linear Devices
3
TYPICAL PERFORMANCE CHARACTERISTICS
RESPONSE TIME FOR
REPRESENTATIVE SAMPLES
TOTAL SUPPLY CURRENT vs.
TOTAL SUPPLY VOLTAGE
10
+
V
T
= 25°C
A
V
T
= ±2.5V
= 25°C
td
S
A
LH
-
+
R
L
=
∞
100
10
1
5
0
6.0
SUPPLY VOLTAGE (V)
2.0
4.0
10.0
12.0
8.0
100
200
50
150
SAMPLES
INPUT OFFSET VOLTAGE vs. SUPPLY
VOLTAGE REPRESENTATIVE SAMPLES
NORMALIZED INPUT OFFSET VOLTAGE
vs. TEMPERATURE
6
4
+3
+2
V
V
= 0V
CM
= ±2.5V
T
= 25°C
A
S
+1
0
2
0
-1
-2
-3
-2
-4
-6
2
4
10
12
6
8
-55
-25
0
25
50
75
100 125
SUPPLY VOLTAGE (V)
TEMPERATURE (°C)
RESPONSE TIME FOR
REPRESENTATIVE SAMPLES
OUTPUT LOW VOLTAGE
vs. SUPPLY VOLTAGE
10
0.6
0.5
V
T
= ±2.5V
= 25°C
S
A
T
= 25°C
A
I
OL
= 12mA
0.4
0.3
0.2
td
HL
5
0.1
0.0
0
2
4
10
12
6
8
100
200
50
150
SUPPLY VOLTAGE (V)
SAMPLES
ALD2303A/ALD2303
Advanced Linear Devices
4
TYPICAL APPLICATIONS
ZERO CROSSING DETECTOR
DOUBLE DUAL LIMIT WINDOW COMPARATOR
ALD2303
+12V
+3V
+12V
+12V
50K
V
OUT
V
IN
VH
2
+
50K
+
-3V
1/2 ALD2303
VH
1
+
+12V
V
IN
+12V
47K
+
+
MULTIPLE RELAY DRIVE
VL
1
+5V
+5V
V
REF
VL
V
+
2
IN
50K
1/2 ALD2303
ALD2303
VL and VH first limit window send warning
1
1
VL and VH second limit window execute system cutoff
2
2
VOLTAGE LEVEL TRANSLATOR
V+ = +10V
50K
V
REF
V
OUT
V
+
IN
1/2 ALD2303
V
= 1.4V for TTL input
+
REF
V
for CMOS input
=
V
REF
2
Output V
swings from rail-to-rail
OUT
ALD2303A/ALD2303
Advanced Linear Devices
5
TYPICAL APPLICATIONS
PUSH-PULL COMPLEMENTARY POWER MOSFET DRIVER
+12V
+12V
P- Channel VP 02
Power MOSFET
+12V
+12V
R
10K
V
+
+
1
2A Source
2A Sink
V
IN
40K
R
V
2
N - Channel VN 01
Power MOSFET
R ≥ 50 KΩ
10K
This circuit eliminates crossover current in the
ALD2303
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.
TIME DELAY GENERATOR
+
V
R
F1
1/2 ALD2303
1/2 ALD2303
V
V
1
+
V
+
+
50KΩ
V
REF
1/2 ALD2303
1/2 ALD2303
R
R
F2
R
T
V
IN
2
+
C
T
F3
V
3
+
R
F4
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.
ALD2303A/ALD2303
Advanced Linear Devices
6
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