Verified Supplier | Shenzhen Perry Elect...

Shenzhen Perry Electronics Co., Limited

China (Mainland) | Contact Details
Established 2011
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Quick Details

  • Model Number: LM331
  • Type: Precision Voltage-to-Frequency Converters
  • Brand Name: National Semiconductor
  • Place of Origin: Kelantan, Malaysia
  • IC: LM331
  • Operating Temperature: -
  • Dissipation Power: -
  • Supply Voltage: -
  • Application: Widely used

Packaging & Delivery

Packaging Details: 40PCS/Tube
Delivery Detail: Fast Delivery time:3-5Days


>Integrated Circuits (ICs)
>>PMIC - V/F and F/V Converters


National Semiconductor

Manufacturer Part Number




Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Standard Package



Integrated Circuits (ICs)


PMIC - V/F and F/V Converters


Voltage to Frequency

Frequency - Max


Full Scale




Mounting Type

Through Hole

Package / Case

8-DIP (0.300", 7.62mm)

Supplier Device Package





General Description

The LM131/LM231/LM331 family of voltage-to-frequencyconverters are ideally suited for use in simple low-cost circuitsfor analog-to-digital conversion, precision frequencyto-voltage conversion,long-term integration, linear frequencymodulation or demodulation, and many other functions.The output when used as a voltage-to-frequency converteris a pulse train at a frequency precisely proportional to theapplied input voltage. Thus, it provides all the inherent advantagesof the voltage-to-frequency conversion techniques,and is easy to apply in all standard voltage-to-frequencyconverter applications. Further, the LM131A/LM231A/LM331A attains a new high level of accuracy versustemperature which could only be attained with expensivevoltage-to-frequency modules. Additionally the LM131is ideally suited for use in digital systems at low power supplyvoltages and can provide low-cost analog-to-digital conversionin microprocessor-controlled systems. And, the frequencyfrom a battery powered voltage-to-frequency convertercan be easily channeled through a simple photoisolatorto provide isolation against high common mode levels.The LM131/LM231/LM331 utilizes a new temperaturecompensatedband-gap reference circuit, to provide excellentaccuracy over the full operating temperature range, atpower supplies as low as 4.0V. The precision timer circuithas low bias currents without degrading the quick responsenecessary for 100 kHz voltage-to-frequency conversion.And the output is capable of driving 3 TTL loads, or a highvoltage output up to 40V, yet is short-circuit-proof againstVCC.



>> Guaranteed linearity 0.01% max

>> Improved performance in existing voltage-to-frequency conversion applications

>> Split or single supply operation

>> Operates on single 5V supply

>> Pulse output compatible with all logic forms

>> Excellent temperature stability, g50 ppm/§C max

>> Low power dissipation, 15 mW typical at 5V

>> Wide dynamic range, 100 dB min at 10 kHz full scale frequency

>> Wide range of full scale frequency, 1 Hz to 100 kHz

>> Low cost











All products are gone through strict test before shipment . All photos displayed are 100% real and for reference only . Please allow possible slight differences due to technical improvement and variance .Your order is recognized as you are with full acknowledgement of product specs and respective policies . Our customer service is ready t help you anytime . Aiming to create a pleasant shopping experience for you,we are committed to providing top quality and great service all the time.


Product Type & Condition :

Because of the fluctuant sales situation. the stock parts are always changing and the stock list

cannot be promptly updated . So,please consult the stock situation when you inquire.


Customer satisfied is very important to us, If you are satisfied with the items you orderd , please leave feedback. If you are not satisfied with the items u orderd,please contact us before leaving negative feedback . We can work together to resolve any dispute.

If you have any other questions, please feel freely to contact us at any time.
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Verified Supplier - Shenzhen Perry Electronics Co., Limited
China (Mainland) | Contact Details
Established 2011
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Company Feedback

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