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LM139-N
,
LM239-N
,
LM2901-N
,
LM3302-N
,
LM339-N
SNOSBJ3E –NOVEMBER 1999–REVISED DECEMBER 2014
LMx39-N, LM2901-N, LM3302-N Low-Power Low-Offset Voltage Quad Comparators
1 Features 3 Description
The LMx39-N series consists of four independent
1• Wide Supply Voltage Range precision voltage comparators with an offset voltage
• LM139/139A Series 2 to 36 VDC or ±1 to ±18 VDC specification as low as 2 mV maximum for all four
• LM2901-N: 2 to 36 VDC or ±1 to ±18 VDC comparators. These comparators were designed
specifically to operate from a single power supply
• LM3302-N: 2 to 28 VDC or ±1 to ±14 VDC over a wide range of voltages. Operation from split
• Very Low Supply Current Drain (0.8 mA) — power supplies is also possible and the low power
Independent of Supply Voltage supply current drain is independent of the magnitude
• Low Input Biasing Current: 25 nA of the power supply voltage. These comparators also
have a unique characteristic in that the input
• Low Input Offset Current: ±5 nA common-mode voltage range includes ground, even
• Offset Voltage: ±3 mV though they are operated from a single power supply
• Input Common-Mode Voltage Range Includes voltage.
GND The LMx39-N series was designed to directly
• Differential Input Voltage Range Equal to the interface with TTL and CMOS. When operated from
Power Supply Voltage both plus and minus power supplies, the devices
• Low Output Saturation Voltage: 250 mV at 4 mA directly interface with MOS logic— where the low
power drain of the LM339 is a distinct advantage over
• Output Voltage Compatible With TTL, DTL, ECL, standard comparators.
MOS, and CMOS Logic Systems
• Advantages: Device Information(1)
– High-Precision Comparators PART NUMBER PACKAGE BODY SIZE (NOM)
– Reduced VOS Drift Overtemperature LM139-N CDIP (14) 19.56 mm × 6.67 mm
– Eliminates Need for Dual Supplies LM239-N SOIC (14) 8.65 mm × 3.91 mm
– Allows Sensing Near GND LM2901-N PDIP (14) 19.177 mm × 6.35 mm
– Compatible With All Forms of Logic CDIP (14) 19.56 mm × 6.67 mm
– Power Drain Suitable for Battery Operation LM339-N SOIC (14) 8.65 mm × 3.91 mm
PDIP (14) 19.177 mm × 6.35 mm
2 Applications
(1) For all available packages, see the orderable addendum at
• Limit Comparators the end of the datasheet.
• Simple Analog-to-Digital Converters (ADCs)
• Pulse, Squarewave, and Time Delay Generators One-Shot Multivibrator With Input Lock Out
• Wide Range VCO; MOS Clock Timers
• Multivibrators and High-Voltage Digital Logic
Gates
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.
LM139-N
,
LM239-N
,
LM2901-N
,
LM3302-N
,
LM339-N
SNOSBJ3E –NOVEMBER 1999–REVISED DECEMBER 2014
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Table of Contents
7.2 Functional Block Diagram....................................... 10
1 Features.................................................................. 17.3 Feature Description................................................. 10
2 Applications ........................................................... 17.4 Device Functional Modes........................................ 11
3 Description............................................................. 18 Application and Implementation ........................ 12
4 Revision History..................................................... 28.1 Application Information............................................ 12
5 Pin Configuration and Functions......................... 38.2 Typical Applications ................................................ 12
6 Specifications......................................................... 49 Power Supply Recommendations...................... 19
6.1 Absolute Maximum Ratings ...................................... 410 Layout................................................................... 19
6.2 ESD Ratings.............................................................. 410.1 Layout Guidelines ................................................. 19
6.3 Recommended Operating Conditions....................... 510.2 Layout Example .................................................... 19
6.4 Thermal Information.................................................. 511 Device and Documentation Support................. 20
6.5 Electrical Characteristics: LM139A, LM239A,
LM339A, LM139......................................................... 611.1 Related Links ........................................................ 20
6.6 Electrical Characteristics: LM239, LM339, LM2901, 11.2 Trademarks........................................................... 20
LM3302 ..................................................................... 711.3 Electrostatic Discharge Caution............................ 20
6.7 Typical Characteristics.............................................. 811.4 Glossary................................................................ 20
7 Detailed Description............................................ 10 12 Mechanical, Packaging, and Orderable
7.1 Overview................................................................. 10 Information........................................................... 20
4 Revision History
Changes from Revision D (March 2013) to Revision E Page
• Added Pin Configuration and Functions section, ESD Ratings table, Feature Description section, Device Functional
Modes,Application and Implementation section, Power Supply Recommendations section, Layout section, Device
and Documentation Support section, and Mechanical, Packaging, and Orderable Information section .............................. 1
Changes from Revision C (March 2013) to Revision D Page
• Changed layout of National Data Sheet to TI format ........................................................................................................... 10
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SNOSBJ3E –NOVEMBER 1999–REVISED DECEMBER 2014
5 Pin Configuration and Functions
J, D and NFF Package
14-Pin CDIP, SOIC, PDIP
Top View
14-Pin CLGA Package
Top View
Pin Functions
PIN I/O DESCRIPTION
NO. NAME
1 OUTPUT2 O Output, Channel 2
2 OUTPUT1 O Output, Channel 1
3 V+ P Positive Supply
4 INPUT1- I Inverting Input, Channel 1
5 INPUT1+ I Noninverting Input, Channel 1
6 INPUT2- I Inverting Input, Channel 2
7 INPUT2+ I Noninverting Input, Channel 2
8 INPUT3- I Inverting Input, Channel 3
9 INPUT3+ I Noninverting Input, Channel 3
10 INPUT4- I Inverting Input, Channel 4
11 INPUT4+ I Noninverting Input, Channel 4
12 GND P Ground
13 OUTPUT4 O Output, Channel 4
14 OUTPUT3 O Output, Channel 3
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6 Specifications
6.1 Absolute Maximum Ratings(1)
MIN MAX UNIT
LM139N, LM239N, LM339N, LM2901N 36
Supply Voltage, V+LM3302N 28
LM139N, LM239N, LM339N, LM2901N (2) 36
Differential Input Voltage VDC
LM3302N(2) 28
LM139N, LM239N, LM339N, LM2901N −0.3 36
Input Voltage LM3302 –0.3 28
Input Current (VIN<−0.3 VDC)(3) 50 mA
Power Dissipation(4) PDIP 1050
Cavity DIP 1190 mW
SOIC Package 760
Output Short-Circuit to GND(5) Continuous
Lead Temperature (Soldering, 10 seconds) 260
PDIP Package (10 seconds) 260
Soldering Information Vapor Phase (60 seconds) 215 °C
SOIC Package Infrared (15 seconds) 220
Storage temperature, Tstg −65 150
(1) Refer to RETS139AX for LM139A military specifications and to RETS139X for LM139 military specifications.
(2) Positive excursions of input voltage may exceed the power supply level. As long as the other voltage remains within the common-mode
range, the comparator will provide a proper output state. The low input voltage state must not be less than −0.3 VDC (or 0.3 VDC below
the magnitude of the negative power supply, if used) (at 25°C).
(3) 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 transistors 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 VDC (at
25°C).
(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-N and LM139-N 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 (PD≤100 mW), provided the output transistors are
allowed to saturate.
(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+.
6.2 ESD Ratings VALUE UNIT
V(ESD) Electrostatic discharge Human-body model (HBM), per ANSI/ESDA/JEDEC JS-001(1) ±600 V
(1) JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process.
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6.3 Recommended Operating Conditions
over operating free-air temperature range (unless otherwise noted) MIN MAX UNIT
LM139N, LM239N, LM339N, LM2901N 2 36
Single Supply LM3302N 2 28
Supply Voltage V
LM139N, LM239N, LM339N, LM2901N ±1 ±18
Dual Supply LM3302N ±1 ±14
LM139/LM139A −55 125
LM2901/LM3302 −40 85
Operating Temperature °C
LM239/LM239A −25 85
LM339/LM339A 0 70
6.4 Thermal Information LM139-N, LM2901-N, LM2901-N,
LM239-N, LM339-N LM339-N
LM339-N
THERMAL METRIC(1) UNIT
J D NFF
14 PINS
RθJA Junction-to-ambient thermal resistance 95 95 95 °C/W
(1) For more information about traditional and new thermal metrics, see the IC Package Thermal Metrics application report, SPRA953.
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6.5 Electrical Characteristics: LM139A, LM239A, LM339A, LM139
(V+=5 VDC, TA= 25°C(1) unless otherwise stated) LM139A LM239A, LM339A LM139
PARAMETER TEST CONDITIONS UNIT
MIN TYP MAX MIN TYP MAX MIN TYP MAX
Input Offset Voltage See(2) 1.0 2.0 1.0 2.0 2.0 5.0 mVDC
Input Bias Current IIN(+) or IIN(−)with Output in 25 100 25 250 25 100 nADC
Linear Range(3), VCM=0 V
Input Offset Current IIN(+) −IIN(−), VCM= 0 V 3.0 25 5.0 50 3.0 25 nADC
Input Common-Mode V+=30 VDC (LM3302, 0 V+−1.5 0 V+−1.5 0 V+−1.5 VDC
Voltage Range V+= 28 VDC)(4)
Supply Current (LM3302, V+= 28 VDC), RL=∞0.8 2.0 0.8 2.0 0.8 2.0 mADC
on all Comparators
(LM3302, V+= 28 VDC), RL=1.0 2.5 1.0 2.5 mADC
∞, V+= 36 V
Voltage Gain RL≥15 kΩ, V+= 15 VDC 50 200 50 200 50 200 V/mV
VO= 1 VDC to 11 VDC
Large Signal VIN = TTL Logic Swing, VREF =
Response Time 1.4 VDC, VRL = 5 VDC, 300 300 300 ns
RL= 5.1 kΩ
Response Time VRL = 5 VDC, RL= 5.1 kΩ(5) 1.3 1.3 1.3 μs
Output Sink Current VIN(−)= 1 VDC, VIN(+) = 0, 6.0 16 6.0 16 6.0 16 mADC
VO≤1.5 VDC
Saturation Voltage VIN(−)= 1 VDC, VIN(+) = 0, 250 400 250 400 250 400 mVDC
ISINK ≤4 mA
Output Leakage VIN(+) = 1 VDC, VIN(−)= 0, 0.1 0.1 0.1 nADC
Current VO= 5 VDC
Input Offset Voltage See(2) 4.0 4.0 9.0 mVDC
Input Offset Current IIN(+)−IIN(−), VCM = 0 V 100 150 100 nADC
Input Bias Current IIN(+) or IIN(−)with Output in 300 400 300 nADC
Linear Range, VCM = 0 V(3)
Input Common-Mode V+=30 VDC (LM3302), 0 V+−2.0 0 V+−2.0 0 V+−2.0 VDC
Voltage Range V+= 28 VDC)(4)
Saturation Voltage VIN(−)=1 VDC, VIN(+) = 0, 700 700 700 mVDC
ISINK ≤4 mA
Output Leakage VIN(+) = 1 VDC, VIN(−)= 0,
Current VO= 30 VDC, (LM3302, 1.0 1.0 1.0 μADC
VO= 28 VDC)
Differential Input Keep all VIN's ≥0 VDC (or V−, if 36 36 36 VDC
Voltage used)(6)
(1) These specifications are limited to −55°C ≤TA≤125°C, for the LM139/LM139A. With the LM239/LM239A, all temperature specifications
are limited to −25°C ≤TA≤85°C, the LM339/LM339A temperature specifications are limited to 0°C ≤TA≤70°C, and the LM2901,
LM3302 temperature range is −40°C ≤TA≤85°C.
(2) At output switch point, VO≃1.4 VDC, RS= 0 Ωwith V+from 5 VDC to 30 VDC; and over the full input common-mode range (0 VDC to V+
−1.5 VDC), at 25°C. For LM3302, V+from 5 VDC to 28 VDC.
(3) 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.
(4) The input common-mode voltage or either input signal voltage should not be allowed to go negative by more than 0.3 V. 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 VDC without damage (25V for LM3302),
independent of the magnitude of V+.
(5) 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 characteristics section.
(6) Positive excursions of input voltage may exceed the power supply level. As long as the other voltage remains within the common-mode
range, the comparator will provide a proper output state. The low input voltage state must not be less than −0.3 VDC (or 0.3 VDCbelow
the magnitude of the negative power supply, if used) (at 25°C).
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6.6 Electrical Characteristics: LM239, LM339, LM2901, LM3302
(V+= 5 VDC, TA= 25°C(1) unless otherwise stated) LM239, LM339 LM2901 LM3302
PARAMETER TEST CONDITIONS UNIT
MI TYP MAX MIN TYP MAX MIN TYP MAX
N
Input Offset Voltage See(2) 2.0 5.0 2.0 7.0 3 20 mVDC
Input Bias Current IIN(+) or IIN(−)with Output in Linear nADC
25 250 25 250 25 500
Range(3), VCM=0 V
Input Offset Current IIN(+)−IIN(−), VCM = 0 V 5.0 50 5 50 3 100 nADC
Input Common-Mode V+= 30 VDC (LM3302, VDC
0 V+−1.5 0 V+−1.5 0 V+−1.5
Voltage Range V+= 28 VDC)(4)
Supply Current (LM3302, V+= 28 VDC) RL=∞on mADC
0.8 2.0 0.8 2.0 0.8 2.0
all Comparators
(LM3302, V+= 28 VDC) RL=∞, V+mADC
1.0 2.5 1.0 2.5 1.0 2.5
= 36 V
Voltage Gain RL≥15 kΩ, V+= 15 VDC V/mV
50 200 25 100 2 30
VO= 1 VDC to 11 VDC
Large Signal VIN = TTL Logic Swing, VREF = ns
Response Time 1.4 VDC, VRL = 5 VDC, 300 300 300
RL= 5.1 kΩ,
Response Time VRL = 5 VDC, RL= 5.1 kΩ(5) 1.3 1.3 1.3 μs
Output Sink Current VIN(−)= 1 VDC, VIN(+) = 0, mADC
6.0 16 6.0 16 6.0 16
VO≤1.5 VDC
Saturation Voltage VIN(−)= 1 VDC, VIN(+) = 0, mVDC
250 400 250 400 250 500
ISINK ≤4 mA
Output Leakage VIN(+) = 1 VDC,VIN(−)= 0, nADC
0.1 0.1 0.1
Current VO= 5 VDC
Input Offset Voltage See(2) 9.0 9 15 40 mVDC
Input Offset Current IIN(+)−IIN(−), VCM = 0 V 150 50 200 300 nADC
Input Bias Current IIN(+) or IIN(−)with Output in 400 200 500 1000 nADC
Linear Range, VCM = 0V(3)
Input Common-Mode V+= 30 VDC (LM3302, V+= 28 VDC
V+−2.0 0 V+−2.0 0 V+−2.0
VDC)
Voltage Range See(4)
Saturation Voltage VIN(−)= 1 VDC, VIN(+) = 0, mVDC
700 400 700 700
ISINK ≤4 mA
Output Leakage VIN(+) = 1 VDC, VIN(−)= 0, VO= 30 μADC
1.0 1.0 1.0
Current VDC, (LM3302, V O= 28 VDC)
Differential Input Keep all VIN's ≥0 VDC (or V−, if VDC
36 36 28
Voltage used)(6)
(1) These specifications are limited to −55°C ≤TA≤125°C, for the LM139/LM139A. With the LM239/LM239A, all temperature specifications
are limited to −25°C ≤TA≤85°C, the LM339/LM339A temperature specifications are limited to 0°C ≤TA≤70°C, and the LM2901,
LM3302 temperature range is −40°C ≤TA≤85°C.
(2) At output switch point, VO≃1.4 VDC, RS= 0 Ωwith V+from 5 VDC to 30 VDC; and over the full input common-mode range (0 VDC to V+
−1.5 VDC), at 25°C. For LM3302, V+from 5 VDC to 28 VDC.
(3) 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.
(4) The input common-mode voltage or either input signal voltage should not be allowed to go negative by more than 0.3 V. 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 VDC without damage (25V for LM3302),
independent of the magnitude of V+.
(5) 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 characteristics section.
(6) Positive excursions of input voltage may exceed the power supply level. As long as the other voltage remains within the common-mode
range, the comparator will provide a proper output state. The low input voltage state must not be less than −0.3 VDC (or 0.3 VDCbelow
the magnitude of the negative power supply, if used) (at 25°C).
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6.7 Typical Characteristics
6.7.1 LM139/LM239/LM339, LM139A/LM239A/LM339A, LM3302
Figure 1. Supply Current Figure 2. Input Current
Figure 4. Response Time for Various Input Overdrives –
Figure 3. Output Saturation Voltage Negative Transition
Figure 5. Response Time for Various Input Overdrives –
Positive Transition
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6.7.2 LM2901
Figure 7. Input Current
Figure 6. Supply Current
Figure 9. Response Time for Various Input Overdrives –
Figure 8. Output Saturation Voltage Negative Transition
Figure 10. Response Time for Various Input Overdrives –
Positive Transition
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7 Detailed Description
7.1 Overview
The LM139/LM239/LM339 family of devices is a monolithic quad of independently functioning comparators
designed to meet the needs for a medium-speed, TTL compatible comparator for industrial applications. Since no
antisaturation clamps are used on the output such as a Baker clamp or other active circuitry, the output leakage
current in the OFF state is typically 0.1 nA. This makes the device ideal for system applications where it is
desired to switch a node to ground while leaving it totally unaffected in the OFF state. Other features include
single supply, low voltage operation with an input common mode range from ground up to approximately one volt
below VCC . The output is an uncommitted collector so it may be used with a pullup resistor and a separate
output supply to give switching levels from any voltage up to 36V down to a V CE SAT above ground
(approximately 100 mV), sinking currents up to 16 mA. The open collector output configuration allows the device
to be used in wired-OR configurations, such as a window comparators.
In addition it may be used as a single pole switch to ground, leaving the switched node unaffected while in the
OFF state. Power dissipation with all four comparators in the OFF state is typically 4 mW from a single 5-V
supply (1 mW/comparator).
7.2 Functional Block Diagram
7.3 Feature Description
The LMx39-N series are high-gain, wide bandwidth devices which, like most comparators, can easily oscillate if
the output lead is inadvertently allowed to capacitively couple to the inputs through stray capacitance. This shows
up only during the output voltage transition intervals as the comparator changes states. Reducing the input
resistors to < 10 kΩreduces the feedback signal levels and finally, adding even a small amount (1 to 10 mV) of
positive feedback (hysteresis) causes such a rapid transition that oscillations 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 waveform, with relatively fast rise
and fall times, hysteresis is not required.
The differential input voltage may be larger than V+without damaging the device. Protection should be provided
to prevent 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 LMx39-N 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 pullup 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 pullup resistor is not used).
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Feature Description (continued)
The amount of current which the output device can sink is limited by the drive available (which is independent of
V+) and the βof 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 approximately 60-ΩRSAT of the output transistor. The low offset voltage of the output transistor (4
mV) allows the output to clamp essentially to ground level for small load currents.
7.4 Device Functional Modes
A basic comparator circuit is used for converting analog signals to a digital output. The output is HIGH when the
voltage on the non-inverting (+IN) input is greater than the inverting (-IN) input. The output is LOW when the
voltage on the noninverting (+IN) input is less than the inverting (-IN) input. The inverting input (-IN) is also
commonly referred to as the "reference" or "VREF" input.
All pins of any unused comparators should be tied to the negative supply.
The bias network of the LMx39-N 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.
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8 Application and Implementation
NOTE
Information in the following applications sections is not part of the TI component
specification, and TI does not warrant its accuracy or completeness. TI’s customers are
responsible for determining suitability of components for their purposes. Customers should
validate and test their design implementation to confirm system functionality.
8.1 Application Information
The LM139-N is specified for operation from 2.0 V to 36 V (±1V to ±18V) over the temperature range of –55°C to
125°C. While it may seem like a comparator has a well-defined and somewhat limited functionality as a '1-bit
ADC', a comparator is a versatile component which can be used for many functions.
Refer to AN-74 LM139/LM239/LM339 A Quad of Independently Functioning Comparators (SNOA654) for
additional application information on use of the LM139-N.
8.2 Typical Applications
8.2.1 Basic Comparator
Figure 11. Basic Comparator Schematic
8.2.1.1 Design Requirements
The basic usage of a comparator is to indicate when a specific analog signal has exceeded some predefined
threshold. In this application, the negative input is tied to a reference voltage, and the positive input is connected
to the input signal. The output is pulled up with a resistor to the logic supply voltage, V+.
For an example application, the supply voltage is 5 V. The input signal varies between 1 V and 3 V, and we want
to know when the input exceeds 2.5 V. For this example, we would set the VREF to 2.5 V.
8.2.1.2 Application Curve
Figure 12. Basic Comparator Response
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Typical Applications (continued)
8.2.2 System Examples
Figure 13. Driving CMOS Figure 14. Driving TTL
(V+= 5.0 VDC) (V+= 5.0 VDC)
Figure 15. AND Gate Figure 16. OR Gate
(V+= 5.0 VDC) (V+= 5.0 VDC)
Figure 17. One-Shot Multivibrator Figure 18. Bi-Stable Multivibrator
(V+= 15 VDC) (V+= 15 VDC)
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Typical Applications (continued)
Figure 19. One-Shot Multivibrator with Input Lock Figure 20. Pulse Generator
Out (V+= 15 VDC)
(V+= 15 VDC)
Figure 21. Large Fan-In AND Gate Figure 22. ORing the Outputs
(V+= 15 VDC) (V+= 15 VDC)
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Typical Applications (continued)
Figure 23. Time Delay Generator Figure 24. Non-Inverting Comparator with
Hysteresis
(V+= 15 VDC)(V+= 15 VDC)
Figure 25. Inverting Comparator With Hysteresis Figure 26. Squarewave Oscillator
(V+= 15 VDC) (V+= 15 VDC)
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Typical Applications (continued)
Figure 27. Basic Comparator Figure 28. Limit Comparator
(V+= 15 VDC) (V+= 15 VDC)
* Or open-collector logic gate without pullup resistor
Figure 29. Comparing Input Voltages of Opposite Figure 30. Output Strobing
Polarity (V+= 15 VDC)
(V+= 15 VDC)
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Typical Applications (continued)
250 mVDC ≤VC≤+50 VDC
700 Hz ≤fO≤100 kHz
Figure 31. Crystal Controlled Oscillator Figure 32. Two-Decade High-Frequency VCO
(V+= 15 VDC) V+= +30 VDC
Figure 33. Transducer Amplifier Figure 34. Zero Crossing Detector (Single Power
Supply)
(V+= 15 VDC)(V+= 15 VDC)
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Typical Applications (continued)
8.2.2.1 Split-Supply Applications
Figure 35. MOS Clock Driver Figure 36. Zero Crossing Detector
(V+= +15 VDC and V−=−15 VDC) (V+= +15 VDC and V−=−15 VDC)
Figure 37. Comparator With a Negative Reference
(V+= +15 VDC and V−=−15 VDC)
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