SGM8051XN5/TR 250MHz, CMOS Operational Amplifiers

Product Comparison: SGMICRO SGM8051XN5/TR vs. AD8051ARTZ and AD8051ARTZ-REEL7

1. Power Consumption and Efficiency
The SGM8051XN5/TR demonstrates significant advantages in power efficiency, operating at a typical supply current of only 1.2mA, compared to the 4.8mA typical of AD8051ARTZ and AD8051ARTZ-REEL7. This makes SGM8051XN5/TR ideal for power-sensitive applications such as portable instrumentation, wireless systems, and battery-powered devices, where minimizing current draw is critical.

2. Supply Voltage Range and System Compatibility
SGMICRO’s SGM8051XN5/TR supports a wider supply voltage range of 2.5V to 5.5V, offering improved flexibility for modern low-voltage systems. In contrast, AD8051ARTZ devices operate from 3V to 6V, making the SGM8051XN5/TR better suited for applications that require compatibility with 2.5V logic or low-voltage analog front-ends.

3. Slew Rate and Signal Integrity
Both SGM8051XN5/TR and AD8051 series offer a high slew rate of approximately 1600V/μs, enabling excellent performance in high-speed signal amplification. However, due to the SGM8051XN5/TR’s lower power consumption, it achieves a more favorable balance between speed and efficiency, making it more practical for high-speed portable designs.

4. Bandwidth and Gain Performance
The SGM8051XN5/TR features a wide -3dB bandwidth of 300MHz, matching the AD8051ARTZ’s performance. This ensures both devices support video, RF, and fast analog signal applications. Yet, SGM8051XN5/TR achieves this bandwidth with significantly lower quiescent current, which leads to better thermal management and system-level efficiency.

5. Input and Output Characteristics
The SGM8051XN5/TR provides rail-to-rail output and a wide common-mode input range starting from V− + 1.5V, whereas the AD8051 series typically lacks true rail-to-rail output. This feature in SGMICRO’s solution enhances dynamic range utilization in single-supply systems and simplifies circuit design by reducing the need for level shifting or biasing.

6. Package, Qualification, and Reliability
SGM8051XN5/TR is available in a space-saving SOT-23-5 package, identical to that of AD8051ARTZ and AD8051ARTZ-REEL7, ensuring drop-in replacement compatibility. Furthermore, SGM8051XN5/TR is qualified over the full -40°C to +125°C temperature range, meeting the requirements for industrial and automotive-grade applications with high reliability.

7. Cost and Supply Chain Advantage
SGMICRO offers the SGM8051XN5/TR at a highly competitive price point while maintaining excellent quality and performance. In contrast, AD8051ARTZ and AD8051ARTZ-REEL7, due to global supply constraints and higher manufacturing costs, often suffer from longer lead times and higher unit costs. SGMICRO’s local support and stable production capacity provide added value for customers concerned with cost, availability, and long-term sourcing security.

Conclusion
The SGM8051XN5/TR stands out as a high-performance, power-efficient, and cost-effective alternative to AD8051ARTZ and AD8051ARTZ-REEL7. It delivers comparable speed and bandwidth with significantly reduced power consumption, broader voltage compatibility, and excellent system flexibility. For designers seeking to optimize performance, thermal efficiency, and BOM cost, the SGM8051XN5/TR offers a highly attractive solution.