OPA365

The OPA365 is a low-power, high-speed operational amplifier manufactured by Texas Instruments, designed for precision analog signal conditioning in compact and power-sensitive applications. It features a bandwidth of 100 MHz, enabling it to handle fast-changing signals with minimal phase distortion, making it ideal for high-frequency analog circuits. The device operates from a single supply voltage ranging from 2.7 V to 5.5 V, offering flexibility in power domain integration across various systems. With a typical quiescent current of just 1.8 mA per channel, the OPA365 excels in battery-powered and portable electronics where power efficiency is critical. Its low noise performance—3.5 nV/√Hz at 1 kHz—ensures clean signal amplification, particularly in sensitive measurement and sensor interface applications. The amplifier also provides a high slew rate of 400 V/μs, allowing rapid response to transient inputs, which is essential in data acquisition systems and active filtering topologies. The OPA365 is available in small form factors such as the SC-70 and SOIC packages, supporting space-constrained designs in medical devices, industrial sensors, and automotive electronics. It includes internal frequency compensation for stable operation in both non-inverting and inverting configurations, simplifying circuit design without requiring external components. Additionally, the device offers rail-to-rail output swing, maximizing dynamic range and ensuring compatibility with low-voltage digital interfaces. Common applications include driving ADCs in data acquisition systems, amplifying signals from strain gauges or thermocouples, and implementing active filters in audio and communication equipment. Its robust EMI immunity and wide operating temperature range—from –40°C to +125°C—make it suitable for harsh environments such as industrial automation, automotive diagnostics, and IoT edge nodes. The OPA365 also supports single-supply operation without the need for dual supplies, reducing system complexity and component count. Engineered for reliability and ease of use, the OPA365 integrates protection features like thermal shutdown and overcurrent limiting, enhancing long-term stability under varying load conditions. Its consistent performance across temperature and supply variations ensures predictable behavior in real-world deployments. These attributes make the OPA365 a preferred choice for engineers seeking high-performance, low-power analog solutions in modern electronic systems.