LM358-SR 1MHZ High Voltage Bipolar Opamp

Product Overview: Gainsil LM358-SR vs. Texas Instruments LM358DRG4

The Gainsil LM358-SR is a dual operational amplifier designed for general-purpose, low-power applications. It integrates two independent, high-gain, internally frequency-compensated op-amps. The Texas Instruments LM358DRG4 offers similar functionality and is widely adopted in legacy systems. However, the LM358-SR provides key performance enhancements and practical advantages in modern design contexts.

Power Consumption Advantage

The LM358-SR is engineered for ultra-low quiescent current, with a typical supply current of 100 μA per amplifier. This makes it especially suitable for power-sensitive designs such as battery-powered or portable systems.

In contrast, the LM358DRG4 features a higher typical supply current of 500 μA per amplifier, which can result in higher total system power consumption in multi-channel designs. Thus, the LM358-SR offers improved energy efficiency and extended battery life in mobile applications.

Input Offset Voltage and Accuracy

The LM358-SR delivers enhanced precision with a typical input offset voltage of 1 mV, ensuring better signal fidelity and reduced error in analog signal processing.

The LM358DRG4, by comparison, has a typical input offset voltage of 3 mV, making it less ideal for applications that demand tight offset control or high-precision analog signal paths. This highlights the LM358-SR as a more accurate and stable option for precision-critical environments.

Operating Temperature Range

The Gainsil LM358-SR supports a wide operating temperature range of –40°C to +125°C, ensuring dependable performance in automotive, industrial, and outdoor settings.

In contrast, TI's LM358DRG4 is typically rated for a commercial temperature range of 0°C to 70°C, making it less suitable for harsh or high-temperature operating conditions. The extended range of LM358-SR provides more design flexibility across industries.

Supply Voltage Range and Flexibility

Both devices support a wide supply voltage range, but the LM358-SR operates comfortably from 3V to 36V (single supply) or ±1.5V to ±18V (dual supply), allowing seamless integration in systems with variable or higher supply rails.

The LM358DRG4 supports a similar range (typically up to 30V single supply), but the LM358-SR’s additional headroom improves robustness and tolerance to supply fluctuations.

Packaging and Size Efficiency

The LM358-SR is available in a compact SOP-8 package, which is compatible with standard PCB layouts while offering improved thermal and electrical performance in compact systems.

The LM358DRG4 is also housed in an SOIC-8 package, but the LM358-SR's optimized internal design and tighter process control often result in better consistency across devices in mass production.

Cost-Effectiveness and Localization

As a product from Gainsil, a leading domestic semiconductor provider, the LM358-SR offers a compelling price-to-performance ratio. It also benefits from a stable supply chain and responsive local technical support, making it an ideal choice for domestic and international manufacturers seeking long-term availability and competitive cost.

In comparison, the LM358DRG4, though reputable, can be more expensive and susceptible to global supply fluctuations.

Conclusion

In summary, the Gainsil LM358-SR surpasses the Texas Instruments LM358DRG4 in several key performance areas, including lower power consumption, better input offset voltage, extended temperature range, and supply flexibility. With competitive pricing, robust availability, and excellent electrical performance, the LM358-SR is an optimal replacement and enhancement in existing and future analog system designs.