The LM321MFX/NOPB is a low-power, single-channel operational amplifier (op-amp) from Texas Instruments (TI), designed for compact, cost-effective solutions in battery-operated and space-constrained applications. It is housed in a 5-pin SOT-23 package, offering a balance of performance and efficiency across a wide range of systems.

Key features include:

• Wide supply voltage range: Operates from 3 V to 32 V, supporting both single-supply (e.g., 3–5 V) and dual-supply (±1.5 V to ±15 V) configurations.
• Low power consumption: Draws only 430 µA quiescent current, ideal for battery-powered devices.
• High performance: Features a 1 MHz gain-bandwidth product, 0.4 V/µs slew rate, and 65 dB common-mode rejection ratio (CMRR), ensuring reliable signal amplification.
• Stability with capacitive loads: Can drive high-capacitive loads without oscillation.
• Precision specifications: Includes a low input bias current (45 nA) and input offset voltage (2 mV), suitable for precision applications.

Applications span signal conditioning, industrial control, portable electronics, power management, and communication systems. Its compact footprint (2.92 mm × 1.6 mm × 1.02 mm) and wide voltage tolerance make it ideal for embedded systems where space and power efficiency are critical. It operates across a -40°C to 85°C temperature range, ensuring reliability in diverse environments. The LM321MFX/NOPB combines economic pricing with robust performance, enabling efficient design without compromising board space.