Microchip MCP602-I/SN: A Low-Power, Dual Op-Amp for Precision Analog Applications

In the world of analog signal conditioning, the operational amplifier remains a fundamental building block. For designs demanding both precision and low power consumption, the Microchip MCP602-I/SN emerges as a compelling solution. This dual operational amplifier is specifically engineered to deliver high performance while operating from a minimal power supply, making it an ideal choice for a wide array of portable, battery-powered, and industrial applications.

A defining characteristic of the MCP602-I/SN is its exceptionally low quiescent current, drawing a mere 100 µA per amplifier. This feature is paramount for extending battery life in portable equipment such as medical sensors, handheld meters, and remote monitoring devices. Despite its frugal power requirements, the op-amp does not compromise on performance. It boasts a low input offset voltage of 500 µV (max) and an input bias current of just 1 pA, ensuring accurate signal amplification and minimizing errors in precision DC-coupled circuits.

The device operates over a wide supply voltage range from 2.5V to 5.5V, making it compatible with both 3.3V and 5V systems and even allowing for direct operation from a single lithium-ion cell. Furthermore, it features rail-to-rail input and output operation, maximizing the dynamic range and enabling designers to work with signals that swing very close to the power supply rails. This is particularly advantageous in low-voltage systems where every millivolt of signal is critical.

The MCP602-I/SN is packaged in the compact 8-pin SOIC (SN) package, offering a space-efficient footprint for dense PCB layouts. Its combination of low noise, high gain bandwidth product (2.8 MHz typical), and stability makes it well-suited for a diverse set of roles, including active filtering, transducer amplification, photodiode pre-amplification, and ADC buffering. Its robust design ensures reliable operation across extended temperature ranges.

ICGOOODFIND: The Microchip MCP602-I/SN successfully bridges the gap between power efficiency and analog precision, offering a reliable, high-performance dual op-amp solution for modern low-voltage embedded systems.

Keywords: Low-Power, Rail-to-Rail, Precision Amplifier, Low Offset Voltage, Dual Op-Amp