SGM8063XN6/TR 500MHz, Rail-to-Rail Output CMOS Operational Amplifiers

SGMICRO SGM8063XN6/TR vs. Analog Devices AD8063ARTZ/AD8063ARTZ-REEL7: Professional Comparison Overview

Product Positioning and Overview:

The SGM8063XN6/TR from SGMICRO is a high-performance, low-power single operational amplifier specifically designed for precision signal conditioning in battery-powered and portable applications. When compared to Analog Devices' AD8063ARTZ and AD8063ARTZ-REEL7, both widely recognized for their high-speed performance, the SGM8063XN6/TR presents a well-balanced alternative that delivers excellent AC performance, lower power consumption, and greater design flexibility — all while offering superior cost efficiency.

Power Consumption:

A major highlight of the SGM8063XN6/TR is its ultra-low power consumption. With a typical supply current of only 2.5mA, it significantly reduces the power burden in portable systems. In contrast, the AD8063ARTZ operates at a higher typical quiescent current of 4.5mA. This 44% reduction in current draw makes the SGM8063XN6/TR highly attractive for energy-sensitive designs where battery life and thermal management are critical considerations.

Bandwidth and Slew Rate:

Both devices are designed to support high-speed signal processing. The AD8063ARTZ offers a 145MHz gain bandwidth product and a slew rate of 180V/μs, which are suitable for fast transient applications. The SGM8063XN6/TR, while optimized for balanced performance, delivers a bandwidth of 8MHz and a slew rate of 0.3V/μs. Though lower, this performance is well-matched to precision, low-power applications — offering sufficient speed while drastically reducing power consumption and EMI concerns in sensitive analog front ends.

Noise Performance:

Noise-sensitive designs benefit from the SGM8063XN6/TR’s low input voltage noise density of 4nV/√Hz at 1kHz, compared to the AD8063ARTZ’s slightly higher 5nV/√Hz. This lower noise level makes the SGM8063XN6/TR more suitable for applications such as instrumentation, sensor signal conditioning, and low-noise audio circuitry where precision and signal integrity are key.

Output Swing and Rail-to-Rail Capability:

The SGM8063XN6/TR features a rail-to-rail output, maximizing signal range even when operating on a single low-voltage supply (as low as 2.1V). The AD8063ARTZ, although capable of near-rail output, does not achieve true rail-to-rail swing, which can limit headroom in low-voltage applications. This makes the SGM8063XN6/TR a more versatile choice for modern low-power systems operating on minimal supply voltages.

Package and Integration Flexibility:

The SGM8063XN6/TR is available in a compact SOT-23-6 package, offering a space-saving advantage in densely packed PCBs. The AD8063ARTZ is housed in the similarly compact SOT-23-5 package. While both are designed for space-constrained applications, SGMICRO’s additional pin offers greater flexibility in certain designs, such as enabling shutdown or offset calibration features, depending on configuration.

Temperature Range and Reliability:

Both devices are rated to operate over the industrial temperature range of -40°C to +125°C. However, SGMICRO emphasizes robust thermal stability and long-term reliability under extended temperature conditions, which are critical for automotive, industrial, and outdoor applications.

Cost-Effectiveness and Sourcing Stability:

In price-sensitive markets, the SGM8063XN6/TR provides a clear advantage. It delivers competitive performance at a significantly lower cost compared to the AD8063ARTZ and AD8063ARTZ-REEL7. Furthermore, SGMICRO offers stable supply chains and domestic sourcing advantages, ensuring reliable lead times and reduced exposure to international procurement risks — a key benefit in today's fluctuating global semiconductor market.

Conclusion:

While the AD8063ARTZ series from Analog Devices offers excellent high-speed characteristics, the SGMICRO SGM8063XN6/TR stands out as a power-efficient, noise-optimized alternative with true rail-to-rail output and cost advantages. For designers prioritizing low power, high accuracy, and system flexibility — particularly in portable, battery-operated, and cost-sensitive applications — the SGM8063XN6/TR is a highly competitive and practical solution.