SGM8092XS/TR 350MHz, Rail-to-Rail Output CMOS Operational Amplifiers

Product Overview

The SGM8092XS/TR from SGMICRO is a dual-channel, low-power operational amplifier optimized for cost-sensitive, power-efficient analog systems. It competes directly with Analog Devices’ AD8092ARZ and AD8092ARZ-REEL7, both of which are dual high-speed operational amplifiers suited for applications requiring high bandwidth and fast slew rate. While the AD8092ARZ family provides robust performance in high-speed signal paths, the SGM8092XS/TR offers distinct advantages in power efficiency, low-noise performance, and cost effectiveness, especially in portable and low-voltage systems.

Power Consumption Advantage

The SGM8092XS/TR exhibits a quiescent current of only 1.1mA per channel (typical), significantly lower than the 6.5mA per channel (typical) required by the AD8092ARZ and AD8092ARZ-REEL7. This translates into an over 80% reduction in static power consumption, making the SGM8092XS/TR ideal for battery-operated devices, wearable electronics, and always-on signal paths where low power is a critical design constraint.

AC Performance and Application Suitability

The AD8092ARZ delivers a -3dB bandwidth of 145MHz and a slew rate of 1600V/μs, making it highly suitable for video signal chains, high-speed DAC buffers, and RF preamplifiers. By contrast, the SGM8092XS/TR offers an 8MHz bandwidth and 0.3V/μs slew rate, which are optimal for general-purpose analog signal processing, such as sensor signal conditioning, low-frequency control loops, and industrial or medical instrumentation, where signal fidelity and power efficiency take precedence over bandwidth.

Noise Performance

In terms of input-referred voltage noise, the SGM8092XS/TR features a low noise density of 4nV/√Hz, outperforming the AD8092ARZ’s typical 6nV/√Hz. This lower noise floor makes the SGM8092XS/TR better suited for precision analog front ends, low-level sensor interfacing, and audio preamplifiers, where minimizing signal degradation is critical.

Output Swing and Supply Voltage Flexibility

The SGM8092XS/TR offers true rail-to-rail output on a single supply range of 2.1V to 5.5V, which is a significant advantage in low-voltage and mixed-signal environments. In comparison, the AD8092ARZ operates over a wider supply range (±2.5V to ±6V or 5V to 12V single supply) but lacks true rail-to-rail output, potentially limiting dynamic range in single-supply systems. This makes the SGM8092XS/TR a better match for modern low-voltage designs requiring full output swing near ground and supply rails.

Package and Drop-in Compatibility

Both the SGM8092XS/TR and the AD8092ARZ / AD8092ARZ-REEL7 are available in SOIC-8 packages, enabling direct pin-to-pin replacement. This ensures compatibility in existing designs, facilitating seamless second-sourcing or migration, especially for engineers facing cost or lead-time constraints with the AD8092 series.

Thermal and Environmental Performance

Both products support an industrial temperature range of -40°C to +125°C, making them suitable for harsh environments. However, the lower quiescent power of the SGM8092XS/TR also translates to reduced self-heating, contributing to better thermal management in densely populated PCBs or passively cooled systems.

Cost and Supply Chain Advantages

One of the most compelling strengths of the SGM8092XS/TR is its cost-effectiveness, delivering excellent analog performance at a substantially lower price than AD8092ARZ devices. Additionally, SGMICRO’s strong domestic manufacturing capability and stable supply chain ensure shorter lead times, secure sourcing, and greater supply resilience, especially valuable in global procurement scenarios where availability and pricing volatility are common concerns.

Conclusion

While the AD8092ARZ / AD8092ARZ-REEL7 series is a solid choice for high-speed analog applications, the SGM8092XS/TR stands out as a power-efficient, low-noise, and cost-effective alternative for a broad range of analog signal processing tasks. With true rail-to-rail output, excellent noise performance, ultra-low power consumption, and drop-in compatibility, the SGM8092XS/TR is ideally suited for designers seeking a reliable op amp optimized for efficiency, scalability, and system-level cost control.