# Instrumentation Operational Amplifier Texas Instruments INA128PA, Precision INA128PA, PDIP-8

**URL:** https://aio.lv/en/product--texas-instruments-ina128pa--1773750
**Data updated:** 2026-03-27 13:13 (EET)
**Category:** Server Parts & Components
**Manufacturer:** texas instruments
**Manufacturer code:** INA128PA
**EAN:** 2050002119840
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 30.99 €
**Prices and availability valid until:** 2026-07-17 23:59
**Price without VAT (21%):** 25.61 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--texas-instruments-ina128pa--1773750

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 20.07.2026 | free |
| Pickup points | 23.07.2026 | 1.99 EUR |
| Courier delivery to door | 23.07.2026 | 4.99 EUR |

## Summary description

Instrumentation operational amplifier Texas Instruments INA128PA in PDIP-8 package. The INA128PA is a precision, low‑drift instrumentation/operational amplifier intended for accurate differential signal amplification, sensor signal conditioning and data acquisition front-ends. Typical uses include bridge sensor amplification, medical instrumentation inputs and precision measurement circuits requiring stable gain and low offset.

## Long description

The Texas Instruments INA128PA is a precision instrumentation operational amplifier in a PDIP-8 package designed for accurate differential signal amplification and low‑drift performance. It offers stable gain, low offset voltage and low input bias currents, making it suitable for sensor signal conditioning, bridge amplifier applications and data acquisition front-ends where precise measurement and signal integrity are required.
Advantages
The INA128PA provides precision differential amplification with low offset and drift, enabling consistent performance over temperature. Its low input bias current preserves accuracy when used with high-impedance sensors or bridge configurations. The device’s packaging and pinout simplify prototyping and through‑hole mounting, while its internal design supports stable gain settings and low noise for measurement applications.
Suitable for
 Amplification of bridge sensors (strain gauges, load cells)
 Medical instrumentation input stages requiring low offset
 Precision measurement and data acquisition front-end circuits
 Signal conditioning for thermocouples and RTDs with appropriate frontend
 Laboratory prototypes and educational electronics using PDIP packages
Key specifications
 Amplifier type: instrumentation/operational amplifier with differential inputs
 Package: 8‑pin PDIP (through‑hole)
 Low input offset voltage and low offset drift suitable for precision applications
 Low input bias current for use with high‑impedance sources
 Stable gain characteristics for accurate differential amplification
 Low noise optimized for measurement and sensor conditioning
How to use
Install the INA128PA in the PDIP‑8 socket or solder it to a through‑hole PCB according to the standard pinout for instrumentation amplifiers. Configure gain using external resistors between the gain pins as specified in the device documentation; small changes to resistor values set the required differential gain. Provide appropriate power supply voltages and bypass capacitors close to the supply pins to ensure stability and low noise. Connect sensor or bridge outputs to the differential input pins and route the amplified output to the next stage of the measurement system or ADC input.
Usage recommendations
Use short, low‑impedance traces for input connections and place supply decoupling capacitors near the device. Match source impedances where possible and include input filtering if the environment contains significant electromagnetic interference. For highest precision, allow the amplifier to stabilize thermally and select precision external resistors for gain setting.

## FAQ

### How much does the Texas Instruments INA128PA instrumentation op-amp PDIP-8 cost, and is it available for purchase?

The price is 30.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 20 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 20.07.2026 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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