In critical semiconductor applications such as high-speed signal conditioning, industrial control, and portable electronics, the channel configuration, spatial compatibility, and power balance of operational amplifiers directly impact product design efficiency and end-user performance. Conventional solutions typically face three major pain points: mismatch between channel requirements and package dimensions, excessive power consumption in multi-channel applications, and a disconnect between core performance and specific application scenarios.

Corebai Microelectronics' CBM8091/CBM8092/CBM8094 series of rail-to-rail output voltage-mode feedback amplifiers are designed with a core focus on "full coverage of single/dual/quad channels, balanced performance, and precise scenario adaptation." These amplifiers address the aforementioned pain points and serve as a domestic benchmark solution for the ADI AD809x series, making them an efficient choice for engineers and selection managers.

Wide voltage compatibility + Low power consumption: Supports single power supply 2.5V～5.5V and dual power supply ±1.25V~±2.75V, with a typical static current of 4.2mA per amplifier. The CBM8091N/CBM8092N models have a dropout mode current of only 75μA (typical). No additional voltage conversion module is required, compatible with various power supply solutions such as lithium batteries and linear power supplies, which can extend the battery life of portable devices and reduce energy consumption costs for industrial equipment.

High-speed response with low distortion: When G=+1, the 3dB bandwidth reaches 350MHz, featuring a maximum voltage swing of 232V/μs and response times as fast as 3.5ns. This enables efficient processing of high-frequency analog signals while eliminating delays and distortions, making it ideal for high-speed A/D/D/A converter buffers and video drivers to ensure stable signal transmission and rapid response in end products.

Track-to-track output with low noise and high precision: Under RL=1kΩ load, the output swing is only 0.03V (typical), the input offset voltage is ±2mV (typical), the input bias current is 1pA (typical), and the voltage noise is 4.3nV/Hz at 1MHz. These characteristics enable the product to maximize the signal dynamic range under low-voltage power supply, effectively reduce distortion in weak signal amplification, and significantly improve measurement accuracy in scenarios such as photoelectric detection and sensor signal conditioning.

Wide temperature range + High reliability: Operating temperature from-40℃ to +125℃, with ESD protection up to 6kV for human body models. These features enable stable operation in harsh environments like industrial control and outdoor electronics without additional temperature control or protective designs, thereby reducing on-site equipment failure rates and ensuring long-term operational reliability.

Intuitive operation with efficient debugging: Maintains stable unit gain while offering two capacitor load solutions—series resistance isolation and noise gain enhancement. Its closed-loop output impedance reaches 0.045Ω (typical value). These features effectively resolve oscillation issues in traditional amplifier designs when driving capacitor loads. When paired with clear application guidelines, the product significantly reduces design and debugging cycles while improving yield rates.

Flexible packaging with versatile options: Compatible with multiple packages including SC70-5, SOT23-5/6, MSOP-8/10, SOP-8/14, and TSSOP-14. From compact portable devices to industrial integration products, it adapts seamlessly without core circuit modifications, cutting PCB redesign costs and speeding up time-to-market.

application scenarios ：

The photodiode preamplifier: The CBM8091 features a 1pA low input bias current that minimizes signal loss. Its compact package supports sensor miniaturization, enabling precise amplification of weak photocurrent signals to ensure detection accuracy.

Portable handheld device: The CBM8091 (low-power and compact design) or CBM8092 (dual-channel integration) balances the need for miniaturization, extended standby time, and multi-signal detection, ultimately enhancing the end-user experience.

Base station/Industrial control equipment: The CBM8094's four-channel high-integration design reduces component count and PCB footprint. Its wide temperature range and high ESD protection ensure stable multi-channel signal processing, guaranteeing round-the-clock reliable operation.