LM3302N [NSC]
Low Power Low Offset Voltage Quad Comparators; 低功耗低失调电压QUAD比较仪
| 型号： | LM3302N |
| 厂家： | 
National Semiconductor |
| 描述： | Low Power Low Offset Voltage Quad Comparators |
| 文件： | 总20页 (文件大小：381K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
November 1999
LM139/LM239/LM339/LM2901/LM3302
Low Power Low Offset Voltage Quad Comparators
n Reduced VOS drift over temperature
n Eliminates need for dual supplies
The LM139 series consists of four independent precision
n Allows sensing near GND
General Description
voltage comparators with an offset voltage specification as
low as 2 mV max for all four comparators. These were de-
signed specifically to operate from a single power supply
n Compatible with all forms of logic
n Power drain suitable for battery operation
over a wide range of voltages. Operation from split power
supplies is also possible and the low power supply current
drain is independent of the magnitude of the power supply
voltage. These comparators also have a unique characteris-
tic in that the input common-mode voltage range includes
ground, even though operated from a single power supply
voltage.
Features
n Wide supply voltage range
±
±
— LM139/139A Series 2 to 36 VDC or 1 to 18 VDC
— LM2901:
— LM3302:
± ±
2 to 36 VDC
2 to 28 VDC
or 1 to 18 VDC
±
±
or 1 to 14 VDC
n Very low supply current drain (0.8 mA) — independent
Application areas include limit comparators, simple analog to
digital converters; pulse, squarewave and time delay gen-
erators; wide range VCO; MOS clock timers; multivibrators
and high voltage digital logic gates. The LM139 series was
designed to directly interface with TTL and CMOS. When op-
erated from both plus and minus power supplies, they will di-
rectly interface with MOS logic — where the low power drain
of the LM339 is a distinct advantage over standard compara-
tors.
of supply voltage
n Low input biasing current:
n Low input offset current:
n Offset voltage:
n Input common-mode voltage range includes GND
n Differential input voltage range equal to the power
supply voltage
n Low output saturation voltage:
25 nA
±
5 nA
±
3 mV
250 mV at 4 mA
n Output voltage compatible with TTL, DTL, ECL, MOS
and CMOS logic systems
Advantages
n High precision comparators
Connection Diagrams
DS005706-27
Order Number LM139AW/883 or LM139W/883 (Note 1)
LM139AWRQML and LM139AWRQMLV(Note 3)
See NS Package Number W14B
LM139AWGRQML and LM139AWGRQMLV(Note 3)
See NS Package Number WG14A
© 1999 National Semiconductor Corporation
DS005706
www.national.com
Connection Diagrams (Continued)
Dual-In-Line Package
DS005706-2
Order Number LM139J, LM139J/883 (Note 1), LM139AJ,
LM139AJ/883 (Note 2), LM239J, LM239AJ, LM339J,
LM139AJRQML and LM139AJRQMLV(Note 3)
See NS Package Number J14A
Order Number LM339AM, LM339M or LM2901M
See NS Package Number M14A
Order Number LM339N, LM339AN, LM2901N or LM3302N
See NS Package Number N14A
Note 1: Available per JM38510/11201
Note 2: Available per SMD# 5962-8873901
Note 3: See STD Mil Dwg 5962R96738 for Radiation Tolerant Device
www.national.com
2
Absolute Maximum Ratings (Note 13)
If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
LM139/LM239/LM339
LM139A/LM239A/LM339A
LM2901
LM3302
Supply Voltage, V+
36 VDC or 18 VDC
28 VDC or 14 VDC
±
±
Differential Input Voltage (Note 11)
Input Voltage
36 VDC
28 VDC
−0.3 VDC to +36 VDC
−0.3 VDC to +28 VDC
<
Input Current (VIN −0.3 VDC),
(Note 6)
50 mA
50 mA
Power Dissipation (Note 4)
Molded DIP
1050 mW
1190 mW
760 mW
1050 mW
Cavity DIP
Small Outline Package
Output Short-Circuit to GND,
(Note 5)
Continuous
Continuous
Storage Temperature Range
Lead Temperature
(Soldering, 10 seconds)
Operating Temperature Range
LM339/LM339A
−65˚C to +150˚C
−65˚C to +150˚C
260˚C
260˚C
−40˚C to +85˚C
0˚C to +70˚C
−25˚C to +85˚C
−40˚C to +85˚C
−55˚C to +125˚C
LM239/LM239A
LM2901
LM139/LM139A
Soldering Information
Dual-In-Line Package
Soldering (10 seconds)
Small Outline Package
Vapor Phase (60 seconds)
Infrared (15 seconds)
260˚C
260˚C
215˚C
220˚C
215˚C
220˚C
See AN-450 “Surface Mounting Methods and Their Effect on Product Reliability” for other methods of soldering surface mount
devices.
ESD rating (1.5 kΩ in series with 100 pF)
600V
600V
Electrical Characteristics
(V+ 5 VDC, TA 25˚C, unless otherwise stated)
=
=
Parameter
Conditions
LM139A
Min Typ Max
LM239A, LM339A
LM139
Units
Min Typ Max Min Typ
Max
Input Offset Voltage
Input Bias Current
(Note 12)
IIN(+) or IIN(−) with Output in
1.0
25
2.0
1.0
25
2.0
2.0
25
5.0
mVDC
nADC
100
250
100
=
Linear Range, (Note 8), VCM 0V
=
Input Offset Current
Input Common-Mode
Voltage Range
I
IN(+)−IIN(−), VCM 0V
3.0
0.8
25
V+−1.5
5.0
50
V+−1.5
3.0
25
V+−1.5
nADC
VDC
V+ 30 VDC (LM3302,
V+ 28 VDC) (Note 9)
0
0
0
=
=
=∞
=∞
Supply Current
RL
RL
on all Comparators,
+
2.0
0.8
1.0
2.0
2.5
0.8
1.0
2.0
2.5
mADC
mADC
=
, V 36V,
(LM3302, V+ 28 VDC
)
=
=
Voltage Gain
RL≥15 kΩ, V+ 15 VDC
50 200
300
50
200
300
50 200
300
V/mV
ns
=
Vo 1 VDC to 11 VDC
= =
VIN TTL Logic Swing, VREF
Large Signal
=
1.4 VDC, VRL 5 VDC,
Response Time
=
RL 5.1 kΩ
=
=
Response Time
VRL 5 VDC, RL 5.1 kΩ,
1.3
1.3
1.3
µs
(Note 10)
3
www.national.com
Electrical Characteristics (Continued)
(V+ 5 VDC, TA 25˚C, unless otherwise stated)
=
=
Parameter
Output Sink Current
Saturation Voltage
Conditions
LM139A
LM239A, LM339A
LM139
Units
mADC
mVDC
nADC
Min Typ
Max
Min Typ Max Min Typ
Max
=
=
VIN(−) 1 VDC, VIN(+) 0,
6.0 16
250
6.0
16
250
0.1
6.0 16
250
V
O≤1.5 VDC
=
=
VIN(−) 1 VDC, VIN(+) 0,
400
400
400
I
SINK≤4 mA
=
=
Output Leakage
Current
VIN(+) 1 VDC,VIN(−) 0,
0.1
0.1
=
VO 5 VDC
Electrical Characteristics
(V+ 5 VDC, TA 25˚C, unless otherwise stated)
=
=
Parameter
Conditions
LM239, LM339
LM2901
LM3302
Units
Min Typ Max Min Typ
Max
7.0
Min Typ
Max
20
Input Offset Voltage
Input Bias Current
(Note 12)
IIN(+) or IIN(−) with Output in
2.0
25
5.0
2.0
25
3
mVDC
nADC
250
250
25
500
=
Linear Range, (Note 8), VCM 0V
=
Input Offset Current
Input Common-Mode
Voltage Range
I
IN(+)−IIN(−), VCM 0V
5.0
50
V+−1.5
5
50
V+−1.5
3
100
V+−1.5
nADC
VDC
V+ 30 VDC (LM3302,
V+ 28 VDC) (Note 9)
0
0
0
=
=
=∞
=∞
Supply Current
RL
RL
on all Comparators,
+
0.8
1.0
2.0
2.5
0.8
1.0
2.0
2.5
0.8
1.0
2.0
2.5
mADC
mADC
=
, V 36V,
(LM3302, V+ 28 VDC
)
=
=
Voltage Gain
RL≥15 kΩ, V+ 15 VDC
50
200
300
25 100
300
2
30
V/mV
ns
=
Vo 1 VDC to 11 VDC
=
=
Large Signal
VIN TTL Logic Swing, VREF
300
=
1.4 VDC, VRL 5 VDC,
Response Time
=
RL 5.1 kΩ,
=
=
Response Time
VRL 5 VDC, RL 5.1 kΩ,
1.3
16
1.3
6.0 16
250
1.3
µs
(Note 10)
=
=
Output Sink Current
Saturation Voltage
VIN(−) 1 VDC, VIN(+) 0,
6.0
6.0 16
250
mADC
mVDC
nADC
V
O≤1.5 VDC
=
=
VIN(−) 1 VDC, VIN(+) 0,
250
0.1
400
400
500
I
SINK≤4 mA
=
=
Output Leakage
Current
VIN(+) 1 VDC,VIN(−) 0,
0.1
0.1
=
VO 5 VDC
Electrical Characteristics
(V+ 5.0 VDC, (Note 7))
=
LM139A
Min Typ
LM239A,
LM339A
LM139
Parameter
Conditions
Units
Max Min Typ
Max Min Typ
Max
9.0 mVDC
Input Offset Voltage
Input Offset Current
Input Bias Current
(Note 12)
IIN(+)−IIN(−), VCM 0V
IIN(+) or IIN(−) with Output in
4.0
100
300
4.0
150
400
=
100
300
nADC
nADC
=
Linear Range, VCM 0V (Note 8)
V+ 30 VDC (LM3302,
0
V+−2.0
700
0
V+−2.0
0
V+−2.0 VDC
700 mVDC
=
Input Common-Mode
Voltage Range
V+ 28 VDC) (Note 9)
=
=
=
Saturation Voltage
VIN(−) 1 VDC, VIN(+) 0,
700
I
SINK≤4 mA
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4
Electrical Characteristics (Continued)
(V+ 5.0 VDC, (Note 7))
=
LM139A
LM239A,
LM339A
LM139
Parameter
Conditions
Units
Min Typ
Max Min Typ
Max Min Typ
Max
=
Output Leakage Current
VIN(+)=1 VDC, VIN(−) 0,
1.0
1.0
1.0
µADC
=
VO 30 VDC, (LM3302,
=
VO 28 VDC
)
Differential Input Voltage
Keep all VIN’s≥0 VDC (or V−,
36
36
36
VDC
if used), (Note 11)
Electrical Characteristics
(V+ 5.0 VDC, (Note 7))
=
Parameter
Conditions
LM239, LM339
LM2901
Min Typ
LM3302
Units
Min Typ
Max
9.0
Max
15
Min Typ
Max
40
Input Offset Voltage
Input Offset Current
Input Bias Current
(Note 12)
9
mVDC
nADC
nADC
=
IIN(+)−IIN(−), VCM 0V
150
400
50
200
500
300
IIN(+) or IIN(−) with Output in
200
1000
=
Linear Range, VCM 0V (Note
8)
V+ 30 VDC (LM3302, V+ 28
VDC
(Note 9)
V+−2.0
0
V+−2.0
0
V+−2.0 VDC
=
=
Input Common-Mode
)
Voltage Range
=
=
Saturation Voltage
VIN(−) 1 VDC, VIN(+) 0,
SINK≤4 mA
Output Leakage Current VIN(+)=1 VDC, VIN(−) 0,
700
1.0
400
700
1.0
700
1.0
mVDC
µADC
I
=
=
=
VO 30 VDC, (LM3302, VO 28
VDC
)
Differential Input Voltage Keep all VIN’s≥0 VDC (or V−,
36
36
28
VDC
if used), (Note 11)
Note 4: For operating at high temperatures, the LM339/LM339A, LM2901, LM3302 must be derated based on a 125˚C maximum junction temperature and a thermal
resistance of 95˚C/W which applies for the device soldered in a printed circuit board, operating in a still air ambient. The LM239 and LM139 must be derated based
on a 150˚C maximum junction temperature. The low bias dissipation and the “ON-OFF” characteristic of the outputs keeps the chip dissipation very small (P ≤100
D
mW), provided the output transistors are allowed to saturate.
+
Note 5: Short circuits from the output to V can cause excessive heating and eventual destruction. When considering short circuits to ground, the maximum output
+
current is approximately 20 mA independent of the magnitude of V .
Note 6: This input current will only exist when the voltage at any of the input leads is driven negative. It is due to the collector-base junction of the input PNP tran-
sistors becoming forward biased and thereby acting as input diode clamps. In addition to this diode action, there is also lateral NPN parasitic transistor action on the
+
IC chip. This transistor action can cause the output voltages of the comparators to go to the V voltage level (or to ground for a large overdrive) for the time duration
that an input is driven negative. This is not destructive and normal output states will re-establish when the input voltage, which was negative, again returns to a value
greater than −0.3 V
(at 25˚)C.
DC
Note 7: These specifications are limited to −55˚C≤T ≤+125˚C, for the LM139/LM139A. With the LM239/LM239A, all temperature specifications are limited to
A
−25˚C≤T ≤+85˚C, the LM339/LM339A temperature specifications are limited to 0˚C≤T ≤+70˚C, and the LM2901, LM3302 temperature range is −40˚C≤T ≤+85˚C.
A
A
A
Note 8: The direction of the input current is out of the IC due to the PNP input stage. This current is essentially constant, independent of the state of the output so
no loading change exists on the reference or input lines.
Note 9: The input common-mode voltage or either input signal voltage should not be allowed to go negative by more than 0.3V. The upper end of the common-mode
+
+
voltage range is V −1.5V at 25˚C, but either or both inputs can go to +30 V
DC
without damage (25V for LM3302), independent of the magnitude of V .
Note 10: The response time specified is a 100 mV input step with 5 mV overdrive. For larger overdrive signals 300 ns can be obtained, see typical performance char-
acteristics section.
Note 11: Positive excursions of input voltage may exceed the power supply level. As long as the other voltage remains within the common-mode range, the com-
parator will provide a proper output state. The low input voltage state must not be less than −0.3 V (or 0.3 V below the magnitude of the negative power supply,
DC DC
if used) (at 25˚C).
+
+
=
Note 12: At output switch point, V 1.4 V , R 0Ω with V from 5 V to 30 V ; and over the full input common-mode range (0 V to V −1.5 V ), at 25˚C.
O
DC
S
DC
DC
DC
DC
+
For LM3302, V from 5 V
DC
to 28 V
.
DC
Note 13: Refer to RETS139AX for LM139A military specifications and to RETS139X for LM139 military specifications.
5
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Typical Performance Characteristics LM139/LM239/LM339, LM139A/LM239A/LM339A, LM3302
Supply Current
Input Current
Output Saturation Voltage
DS005706-34
DS005706-35
DS005706-36
Response Time for Various
Input Overdrives — Negative
Transition
Response Time for Various
Input Overdrives — Positive
Transition
DS005706-37
DS005706-38
Typical Performance Characteristics LM2901
Supply Current
Input Current
Output Saturation Voltage
DS005706-40
DS005706-39
DS005706-41
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6
Typical Performance Characteristics LM2901 (Continued)
Response Time for Various
Input Overdrives — Negative
Transition
Response Time for Various
Input Overdrives-Positive
Transition
DS005706-42
DS005706-43
Application Hints
The LM139 series are high gain, wide bandwidth devices
which, like most comparators, can easily oscillate if the out-
put lead is inadvertently allowed to capacitively couple to the
inputs via stray capacitance. This shows up only during the
output voltage transition intervals as the comparator
changes states. Power supply bypassing is not required to
solve this problem. Standard PC board layout is helpful as it
reduces stray input-output coupling. Reducing this input re-
The differential input voltage may be larger than V+ without
damaging the device. Protection should be provided to pre-
vent the input voltages from going negative more than −0.3
VDC (at 25˚C). An input clamp diode can be used as shown
in the applications section.
The output of the LM139 series is the uncommitted collector
of a grounded-emitter NPN output transistor. Many collectors
can be tied together to provide an output OR’ing function. An
output pull-up resistor can be connected to any available
power supply voltage within the permitted supply voltage
range and there is no restriction on this voltage due to the
magnitude of the voltage which is applied to the V+ terminal
of the LM139A package. The output can also be used as a
simple SPST switch to ground (when a pull-up resistor is not
used). The amount of current which the output device can
sink is limited by the drive available (which is independent of
V+) and the β of this device. When the maximum current limit
is reached (approximately 16 mA), the output transistor will
come out of saturation and the output voltage will rise very
rapidly. The output saturation voltage is limited by the ap-
proximately 60Ω RSAT of the output transistor. The low offset
voltage of the output transistor (1 mV) allows the output to
clamp essentially to ground level for small load currents.
<
sistors to 10 kΩ reduces the feedback signal levels and fi-
nally, adding even a small amount (1 to 10 mV) of positive
feedback (hysteresis) causes such a rapid transition that os-
cillations due to stray feedback are not possible. Simply
socketing the IC and attaching resistors to the pins will cause
input-output oscillations during the small transition intervals
unless hysteresis is used. If the input signal is a pulse wave-
form, with relatively fast rise and fall times, hysteresis is not
required.
All pins of any unused comparators should be tied to the
negative supply.
The bias network of the LM139 series establishes a drain
current which is independent of the magnitude of the power
supply voltage over the range of from 2 VDC to 30 VDC
.
It is usually unnecessary to use a bypass capacitor across
the power supply line.
Typical Applications (V+ 5.0 VDC
)
=
Basic Comparator
Driving CMOS
Driving TTL
DS005706-3
DS005706-5
DS005706-4
7
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Typical Applications (V+ 5.0 VDC) (Continued)
=
AND Gate
OR Gate
DS005706-8
DS005706-9
Typical Applications (V+ 15 VDC
)
=
One-Shot Multivibrator
DS005706-10
Bi-Stable Multivibrator
DS005706-11
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8
Typical Applications (V+ 15 VDC) (Continued)
=
One-Shot Multivibrator with Input Lock Out
DS005706-12
9
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Typical Applications (V+ 15 VDC) (Continued)
=
Large Fan-In AND Gate
ORing the Outputs
DS005706-13
DS005706-15
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10
Typical Applications (V+ 15 VDC) (Continued)
=
Pulse Generator
DS005706-17
11
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Typical Applications (V+ 15 VDC) (Continued)
=
Time Delay Generator
DS005706-14
Non-Inverting Comparator with Hysteresis
Inverting Comparator with Hysteresis
DS005706-18
DS005706-19
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12
Typical Applications (V+ 15 VDC) (Continued)
=
Squarewave Oscillator
Basic Comparator
DS005706-21
DS005706-16
Limit Comparator
Comparing Input Voltages
of Opposite Polarity
DS005706-20
DS005706-24
13
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Typical Applications (V+ 15 VDC) (Continued)
=
Output Strobing
Crystal Controlled Oscillator
DS005706-22
* Or open-collector logic gate without pull-up resistor
DS005706-25
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14
Typical Applications (V+ 15 VDC) (Continued)
=
15
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Typical Applications (V+ 15 VDC) (Continued)
=
Transducer Amplifier
Zero Crossing Detector (Single Power Supply)
DS005706-30
DS005706-28
Split-Supply Applications (V+ +15 VDC and V− −15 VDC
)
=
=
MOS Clock Driver
DS005706-31
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16
Split-Supply Applications (V+ +15 VDC and V− −15 VDC) (Continued)
=
=
Zero Crossing Detector
Comparator With a Negative
Reference
DS005706-32
DS005706-33
Schematic Diagram
DS005706-1
17
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Physical Dimensions inches (millimeters) unless otherwise noted
Ceramic Dual-In-Line Package (J)
Order Number LM139J, LM139J/883, LM139AJ,
LM139AJ/883, LM239J, LM239AJ, LM339J
NS Package Number J14A
S.O. Package (M)
Order Number LM339AM, LM339M or LM2901M
NS Package Number M14A
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18
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)
Molded Dual-In-Line Package (N)
Order Number LM339N, LM339AN, LM2901N or LM3302N
NS Package Number N14A
Order Number LM139AW/883 or LM139W/883
NS Package Number W14B
19
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Notes
LIFE SUPPORT POLICY
NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT AND GENERAL
COUNSEL OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein:
1. Life support devices or systems are devices or
systems which, (a) are intended for surgical implant
into the body, or (b) support or sustain life, and
whose failure to perform when properly used in
accordance with instructions for use provided in the
labeling, can be reasonably expected to result in a
significant injury to the user.
2. A critical component is any component of a life
support device or system whose failure to perform
can be reasonably expected to cause the failure of
the life support device or system, or to affect its
safety or effectiveness.
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Corporation
Americas
Tel: 1-800-272-9959
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