# Voltage-to-Frequency Converter Texas Instruments LM331N/NOPB DIP-8 precision V/F converter

**URL:** https://aio.lv/en/product--texas-instruments-lm331nnopb--11823232
**Data updated:** 2026-03-09 11:11 (EET)
**Category:** Server Parts & Components
**Manufacturer:** texas instruments
**Manufacturer code:** LM331N/NOPB
**EAN:** 2050000060359
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 24.49 €
**Prices and availability valid until:** 2026-07-22 23:59
**Price without VAT (21%):** 20.24 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--texas-instruments-lm331nnopb--11823232

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 16.07.2026 | free |
| Pickup points | 21.07.2026 | 1.89 EUR |
| Courier delivery to door | 21.07.2026 | 4.99 EUR |

## Summary description

LM331N/NOPB by Texas Instruments is a voltage-to-frequency (V/F) converter in a DIP-8 package. Designed for converting an input voltage into a proportional frequency output, it supports accurate analog-to-frequency translation for measurement, sensing, and signal isolation applications. Typical uses include frequency-based analog data transmission, sensor interfacing, and frequency metering where stable V-to-F conversion and simple external component configuration are required.

## Long description

The LM331N by Texas Instruments is a precision voltage-to-frequency (V/F) converter in a DIP-8 package that converts an input voltage into a proportional frequency output. The device is intended for applications requiring stable analog-to-frequency translation with simple external components and predictable linear response. Typical system-level uses include frequency-based analog data transmission, sensor interface circuits, frequency metering, and signal isolation tasks where a voltage represented as a frequency is easier to transmit or measure.
Advantages
The LM331N provides a linear voltage-to-frequency transfer function with adjustable frequency range via external resistors and capacitors, enabling designers to tailor sensitivity and output span. Its DIP-8 through-hole package simplifies prototyping and board-level replacement. The device requires a modest number of external components and delivers predictable timing characteristics and low drift for many measurement and sensing applications.
Suitable for
Converting analog sensor voltages to frequency for long-distance transmission or noise-resistant interfacing
Frequency metering and pulse-count-based data acquisition
Analog-to-digital front-ends where a frequency-based representation simplifies processing
Signal isolation schemes where optocouplers or transformers pass frequency instead of analogue voltage
Key specifications
DIP-8 through-hole package format
Voltage-to-frequency conversion with linear transfer characteristics
Configurable output frequency range set by external resistor and capacitor
Single-supply operation with typical low-power consumption appropriate for measurement circuits
Timing accuracy suitable for precision measurement and sensing when used with recommended external components
How to use
Design the external network around the LM331N by selecting the timing capacitor and bias resistors to set the desired output frequency range and sensitivity. Connect the input voltage to the designated input pin through any required scaling or buffering circuit; common practice is to use an input resistor or op amp buffer to match signal levels. Provide power and ground according to the device datasheet, place the timing capacitor between the timing node and ground, and configure the resistor between the timing node and the supply or reference pins as recommended. Verify linearity and temperature behavior in the target circuit and adjust component values as needed to meet accuracy requirements.
Usage recommendations
Place bypass capacitors close to the supply pins, use stable, low-tolerance timing components to minimize drift, and keep layout traces for timing components short to preserve accuracy. When interfacing with sensors, consider buffering the sensor output to protect against loading and to maintain linearity of the V-to-F conversion.

## FAQ

### How much does the Voltage-to-Frequency Converter Texas Instruments LM331N/NOPB cost, and is it available for purchase?

The price is 24.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 1 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 16.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All texas instruments products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized texas instruments service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

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