The industrial control, consumer electronics, and portable device sectors are increasingly demanding operational amplifiers with "wide adaptability, low power consumption, high precision, and high reliability" -requiring compatibility from low-voltage portable devices to high-voltage industrial modules while maintaining signal fidelity and controlling power consumption for battery-powered applications. Amid the trend of domestic substitution, manufacturers urgently need localized solutions that match international benchmarks (e.g., ST LM2902) in performance, offer cost advantages, and ensure stable supply chains, addressing pain points like lengthy delivery cycles and slow service responses for imported components. The CBM2902 developed by Xinbai Microelectronics (CBM) precisely addresses these needs, emerging as a critical choice bridging application requirements with domestic substitution.

The CBM2902 delivers groundbreaking dual power support: 3V-32V single-supply operation and ±1.5V-±16V split-supply capability. Its input common-mode voltage range covers ground directly, combined with a wide 0V DC to VCC-1.5V DC output swing, enabling direct drive of downstream loads without additional level-shifting circuits. This significantly simplifies the design complexity of single-supply systems.

To address the battery life challenges of portable devices, the CBM2902 features a low-power optimization design with a typical single-channel operational amplifier static current of just 250μA, and its power consumption remains consistent regardless of supply voltage. Moreover, this low-power design maintains performance without compromise, achieving a balance between energy efficiency and performance while ensuring 100dB DC voltage gain, thus guaranteeing long-term stable operation and a seamless user experience.

In terms of signal amplification accuracy, the CBM2902 features a maximum input offset voltage of 5mV (25°C) and a temperature drift of 7μV/℃, effectively reducing drift errors. With an 80dB common-mode rejection ratio and 120dB channel isolation, combined with a 1MHz gain-bandwidth product and 0.5V/μs slew rate, it enables rapid signal response. This makes it suitable for various high-precision applications ranging from DC gain modules to multi-sensor signal conditioning.

As an industrial-grade operational amplifier, the CBM2902 demonstrates exceptional environmental adaptability, operating within a temperature range of-40°C to 125°C and maintaining storage temperatures from-55°C to 125°C. It features an integrated electrostatic discharge (ESD) protection circuit, with differential input voltage matching the power supply voltage (±32V maximum), enabling it to withstand transient high-voltage surges and enhance equipment immunity to electromagnetic interference. Both SOP-14 and TSSOP-14 package variants comply with industrial-grade mounting standards, ensuring reliability in mass production while reducing equipment failure rates.

The CBM2902 features four independent high-gain operational amplifiers with integrated frequency compensation, eliminating the need for external components. This plug-and-play design significantly simplifies circuit design and debugging. The appendix provides multiple rapid application solutions, ranging from sensor signal amplification to DC gain modules, covering most traditional operational amplifier scenarios. This enables engineers to quickly complete circuit assembly and shorten development cycles.

The sufficient inventory supply, combined with the advantage of localized technical support, provides strong support for enterprises to control procurement costs and ensure the stability of supply chain, and provides efficient and reliable operational amplifier solutions for enterprises.

Product Application:

l multi-function printer

l electric machine control

l Washing machine, dryer and refrigerator

l plc

l Indoor and outdoor air conditioning