# Instrumentation Operational Amplifier Texas Instruments INA155UA, SOIC-8

**URL:** https://aio.lv/en/product--texas-instruments-ina155ua--1776666
**Data updated:** 2026-03-27 13:13 (EET)
**Category:** Server Parts & Components
**Manufacturer:** texas instruments
**Manufacturer code:** INA155UA
**EAN:** 2050002120075
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 16.49 €
**Prices and availability valid until:** 2026-07-20 23:59
**Price without VAT (21%):** 13.63 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--texas-instruments-ina155ua--1776666

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 23.07.2026 | free |
| Pickup points | 28.07.2026 | 1.89 EUR |
| Courier delivery to door | 28.07.2026 | 4.99 EUR |

## Summary description

Texas Instruments INA155UA is an instrumentation operational amplifier supplied in an SOIC-8 package. Designed for precision differential signal amplification, it suits sensor signal conditioning, data acquisition front-ends, and low-noise measurement circuits. The device integrates input stage optimised for common-mode rejection and is intended for use in instrumentation and industrial applications requiring accurate gain and stability.

## Long description

The Texas Instruments INA155UA is an instrumentation operational amplifier in an SOIC-8 package designed for precision differential signal amplification. It is intended for sensor signal conditioning, data acquisition front-ends and low-noise measurement circuits where accurate gain, stability and good common-mode rejection are required. The amplifier integrates an input stage optimized for instrumentation use and is suitable for implementation in industrial and laboratory measurement systems.
Advantages
The INA155UA offers low-noise performance and a carefully balanced input stage to improve common-mode rejection, allowing more accurate measurement of small differential signals in the presence of large common-mode voltages. Its packaging in an SOIC-8 form factor supports compact PCB layouts and standard surface-mount assembly processes. The device provides stable gain over a wide range of operating conditions, making it appropriate for precision analog front-end designs.
Подходит для
 Усиление дифференциальных сигналов от датчиков
 Преобразователи измерительных сигналов и платы сбора данных
 Низкошумные измерительные цепи и лабораторная аппаратура
 Промышленные системные интерфейсы с требованием точности
Key specifications
 Function: instrumentation operational amplifier for differential signal amplification
 Package type: 8-pin SOIC (surface-mount)
 Optimized input stage for improved common-mode rejection
 Designed for low-noise operation suitable for sensor front-ends
 Stable gain and frequency response suitable for data acquisition applications
How to use
Install the INA155UA in an SOIC-8 footprint on a PCB following standard surface-mount soldering guidelines. Configure the amplifier in the required instrumentation topology (for example differential amplifier or instrumentation amplifier configuration) using appropriate external resistors to set gain and bandwidth according to application needs. Provide supply rails and decoupling capacitors close to the device pins to ensure stable operation and minimize supply noise coupling. Observe input common-mode voltage range and output swing limitations when integrating with sensors and ADCs.
Usage recommendations
 For best measurement accuracy, use precision, low-drift external resistors for gain setting, place decoupling capacitors near the supply pins, and route differential signal traces as matched pairs to preserve common-mode rejection and minimize noise pickup.

## FAQ

### How much does the Texas Instruments INA155UA instrumentation op amp SOIC-8 cost, and is it available for purchase?

The price is 16.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 7 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 23.07.2026 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. 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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