LM2904XT S8G/TR Operational Amplifier

Updated: 2026-07-22

Overview

The LM2904XT S8G/TR is a dual operational amplifier from STMicroelectronics, designed for precision analog signal processing in demanding environments. It is part of the LM2904 series, known for its reliability in industrial and automotive applications. This IC features two independent op-amps in a single SOP-8 package, offering a balance of performance and power efficiency. Its design ensures stable operation across a wide temperature range (-40°C to +125°C), making it suitable for harsh conditions.

Structure and Working Principle

The LM2904XT S8G/TR integrates two op-amps with a differential input stage, gain stage, and output buffer. Each amplifier operates independently, allowing for versatile circuit designs such as inverting/non-inverting amplifiers or comparators. Its internal circuitry includes compensation for stable operation under varying loads. The device operates on a single or dual power supply (3V to 36V), with a typical gain bandwidth of 1 MHz and low input bias current.

Key Features

The LM2904XT S8G/TR offers low power consumption (typically 0.7 mA per amplifier), making it ideal for battery-powered applications. Its wide supply voltage range accommodates diverse power sources. Additionally, it provides high noise immunity and short-circuit protection, enhancing reliability in industrial settings. The op-amp’s rail-to-rail output swing ensures maximum dynamic range in signal processing tasks.

Application Areas

Common applications include sensor signal conditioning, active filters, and voltage followers in automotive control systems. It is also used in power management circuits, instrumentation amplifiers, and audio preamplifiers. In industrial automation, the LM2904XT S8G/TR is deployed in PLCs, motor controllers, and process control systems due to its robustness and precision.

Maintenance and Precautions

To ensure longevity, avoid exposing the LM2904XT S8G/TR to voltages beyond its specified range. Proper PCB layout (e.g., minimizing trace lengths) reduces noise interference. For high-current applications, use heat sinks or thermal vias to dissipate heat. Store components in anti-static packaging to prevent electrostatic discharge (ESD) damage.

B2B Procurement Guide

When sourcing the LM2904XT S8G/TR, verify authenticity by purchasing from authorized distributors like STMicroelectronics or reputable electronics suppliers. Bulk orders (100+ units) often reduce costs by 10-20%. Check for RoHS compliance and lead-free certifications if required for your industry. Confirm package type (SOP-8) and reel quantity (e.g., 2,500 units per reel) to align with assembly processes.