SGM8092XMS/TR 350MHz, Rail-to-Rail Output CMOS Operational Amplifiers

Product Overview:

The SGM8092XMS/TR from SGMICRO is a dual-channel, low-power, rail-to-rail output operational amplifier designed for cost-effective, energy-efficient analog signal processing applications. Its direct competitor, the AD8092ARMZ (and its reel variant AD8092ARMZ-REEL7) from Analog Devices, is a high-speed dual op amp intended for applications requiring high bandwidth and slew rate. While the AD8092 excels in fast analog circuits, the SGM8092XMS/TR provides strong performance in general-purpose designs with the added benefits of lower power consumption, rail-to-rail output, and superior noise efficiency, all at a more accessible price point.

Power Consumption Advantage:

A key differentiator of the SGM8092XMS/TR is its remarkably low quiescent current of 1.1mA (typical per channel), compared to 6.5mA (typical per channel) for the AD8092ARMZ. This translates to an over 80% reduction in power consumption, making the SGM8092XMS/TR exceptionally suited for portable, battery-operated, and energy-sensitive systems, where minimizing power draw is crucial to product life and thermal performance.

AC Performance Comparison:

The AD8092ARMZ offers superior high-speed characteristics with a 145MHz -3dB bandwidth and a slew rate of 1600V/μs, ideal for video and other high-speed analog interfaces. The SGM8092XMS/TR, on the other hand, provides a more modest 8MHz bandwidth and 0.3V/μs slew rate, which is sufficient for signal conditioning, sensor interfacing, and low-to-mid frequency analog tasks. This design prioritizes power efficiency over speed, enabling the SGM8092XMS/TR to reduce EMI, lower system complexity, and extend battery life.

Noise Performance:

SGMICRO's SGM8092XMS/TR demonstrates excellent low-noise characteristics, with an input voltage noise density of 4nV/√Hz, outperforming the AD8092ARMZ, which has a typical noise figure of 6nV/√Hz. This makes the SGM8092XMS/TR better suited for precision analog front ends, low-level signal acquisition, and medical or instrumentation systems, where clean signal processing is critical.

Rail-to-Rail Output and Voltage Range:

The SGM8092XMS/TR features a rail-to-rail output stage, ensuring maximum dynamic range even at lower supply voltages. It supports a wide supply range from 2.1V to 5.5V, whereas the AD8092ARMZ supports operation from ±2.5V to ±6V (or 5V to 12V single supply), but does not provide true rail-to-rail output capability. This gives SGM8092XMS/TR an edge in low-voltage single-supply systems, especially in compact and power-constrained designs.

Packaging and Compatibility:

The SGM8092XMS/TR comes in a MSOP-8 package, directly compatible with the MSOP-8 packaging of the AD8092ARMZ and AD8092ARMZ-REEL7. This allows for pin-to-pin replacement and easy migration in existing board layouts, making SGM8092XMS/TR a drop-in alternative for design flexibility and supply diversification.

Temperature Range and Reliability:

Both devices operate across the industrial temperature range of -40°C to +125°C, suitable for demanding environmental conditions. SGMICRO’s rigorous process control and robust silicon ensure high reliability in long-life applications such as industrial automation, consumer electronics, and medical instrumentation.

Cost Efficiency and Supply Chain Stability:

One of the most significant advantages of the SGM8092XMS/TR is its cost competitiveness. SGMICRO offers this product at a substantially lower price point than AD8092ARMZ while maintaining performance and quality. Furthermore, SGMICRO’s domestic manufacturing base and responsive local support ensure faster lead times, reliable sourcing, and greater supply chain flexibility, which are increasingly vital in global component procurement.

Conclusion:

While the AD8092ARMZ/AD8092ARMZ-REEL7 remains a strong option for high-speed analog circuits, the SGMICRO SGM8092XMS/TR stands out as a cost-effective, power-efficient, and low-noise solution for a wide range of analog applications. With true rail-to-rail output, significantly lower power consumption, and superior noise performance, the SGM8092XMS/TR is an excellent fit for modern analog systems prioritizing power efficiency, cost control, and signal fidelity.