CA-IS3720LS High Speed Dual‐Channel Digital Isolators

CA-IS3720LS

CA-IS3720LS vs ADuM120N0BRZ, ADuM120N0WBRZ, ADuM1285ARZ, ADuM1285WARZ, ADuM1285BRZ, ADuM1285WBRZ, ADuM1285CRZ, ADuM1285WCRZ, ADuM3210ARZ, ADuM3210BRZ, ADuM3210TRZ, ADuM3210WARZ, ADuM3210WBRZ, ADuM3210WCRZ, ADuM1210BRZ: A Comprehensive Comparison

The CA-IS3720LS is a cutting-edge digital isolator designed for high-speed, high-reliability applications, offering superior isolation performance and advanced features. In this comparison, we will examine how the CA-IS3720LS stacks up against various products from Analog Devices, including the ADuM120N0BRZ, ADuM120N0WBRZ, ADuM1285ARZ, ADuM1285WARZ, ADuM1285BRZ, ADuM1285WBRZ, ADuM1285CRZ, ADuM1285WCRZ, ADuM3210ARZ, ADuM3210BRZ, ADuM3210TRZ, ADuM3210WARZ, ADuM3210WBRZ, ADuM3210WCRZ, and ADuM1210BRZ, highlighting the unique advantages of the CA-IS3720LS.

CA-IS3720LS vs ADuM120N0BRZ / ADuM120N0WBRZ

The ADuM120N0BRZ and ADuM120N0WBRZ are digital isolators that provide isolation between data and control signals. While these devices offer reliable performance, the CA-IS3720LS provides distinct advantages in terms of data rate, power consumption, and isolation strength.

• The CA-IS3720LS supports higher data rates (up to 25 Mbps), while the ADuM120N0BRZ and ADuM120N0WBRZ are limited to lower data rates, making the CA-IS3720LS ideal for high-speed applications.

• Power efficiency is another area where the CA-IS3720LS excels, as it operates with lower power consumption compared to the ADuM120N0 series, which is essential for battery-powered and energy-sensitive designs.

• Additionally, the CA-IS3720LS offers superior isolation performance with higher voltage ratings, providing more robust protection in industrial and automotive environments.

CA-IS3720LS vs ADuM1285ARZ / ADuM1285WARZ / ADuM1285BRZ / ADuM1285WBRZ

The ADuM1285 family includes a range of digital isolators with different voltage levels, suitable for isolating data signals. However, the CA-IS3720LS stands out for its better noise immunity, faster switching speeds, and longer lifecycle.

• The CA-IS3720LS offers faster switching speeds, making it a better choice for high-frequency applications that require minimal latency, whereas the ADuM1285 series has higher latency and lower performance at higher speeds.

• Noise immunity is also enhanced in the CA-IS3720LS, providing greater resistance to electromagnetic interference (EMI) compared to the ADuM1285ARZ and other models in the series. This makes the CA-IS3720LS more suitable for environments with high electrical noise.

• For reliability, the CA-IS3720LS has a longer operational life, even under demanding conditions, whereas the ADuM1285 series has limitations in extreme environments.

CA-IS3720LS vs ADuM1285CRZ / ADuM1285WCRZ

The ADuM1285CRZ and ADuM1285WCRZ offer similar capabilities to other parts of the ADuM1285 family but are geared more towards low-speed applications and general-purpose uses. The CA-IS3720LS, however, brings several enhancements:

• The CA-IS3720LS provides enhanced isolation performance, particularly for high-voltage isolation, which is crucial for industrial and automotive systems. The ADuM1285 family lacks the same level of robustness in terms of isolation voltage.

• Additionally, the CA-IS3720LS operates at lower supply voltages while maintaining high-speed operation, whereas the ADuM1285CRZ and ADuM1285WCRZ are less efficient in low-voltage environments, resulting in higher power consumption.

CA-IS3720LS vs ADuM3210ARZ / ADuM3210BRZ / ADuM3210TRZ / ADuM3210WARZ / ADuM3210WBRZ / ADuM3210WCRZ

The ADuM3210 series is a family of digital isolators with integrated isolated power capability. While these devices offer integration of power and data isolation, the CA-IS3720LS excels in data throughput, voltage isolation, and thermal stability.

• The CA-IS3720LS supports higher data throughput with minimal signal degradation at higher speeds, while the ADuM3210 series is limited in terms of data rate.

• The CA-IS3720LS is specifically optimized for high-temperature operations, providing superior thermal stability compared to the ADuM3210 family, making it ideal for automotive and industrial applications where the operating environment involves fluctuating temperatures.

• In terms of isolation, the CA-IS3720LS offers higher isolation voltage ratings, making it more suitable for applications requiring high-voltage isolation, such as in industrial automation and energy systems.

CA-IS3720LS vs ADuM1210BRZ

The ADuM1210BRZ is a digital isolator that provides galvanic isolation for data signals. While the ADuM1210BRZ is effective in general-purpose applications, the CA-IS3720LS provides significant advantages in performance, efficiency, and reliability.

• Data rate is a key differentiator, with the CA-IS3720LS supporting faster data transfer speeds than the ADuM1210BRZ, making it ideal for high-speed communication systems.

• The CA-IS3720LS also has superior noise immunity compared to the ADuM1210BRZ, ensuring stable operation in noise-sensitive environments such as industrial control systems.

• Additionally, the CA-IS3720LS offers better fault tolerance and over-voltage protection, ensuring higher system reliability in harsh environments, whereas the ADuM1210BRZ has limited protection features.

Key Advantages of CA-IS3720LS Over Competitors

• Higher Data Rate Support: The CA-IS3720LS offers higher data transfer rates compared to the ADuM120N0BRZ, ADuM1285 series, ADuM3210 series, and ADuM1210BRZ, making it suitable for high-speed applications.

• Lower Power Consumption: The CA-IS3720LS operates with lower power consumption, ideal for battery-powered and energy-sensitive designs, compared to its competitors.

• Superior Noise Immunity: With enhanced EMI immunity, the CA-IS3720LS performs better in electrically noisy environments than the ADuM1285 and ADuM120N0 series.

• Higher Isolation Voltage: The CA-IS3720LS supports higher isolation voltage ratings, making it more suitable for high-voltage applications compared to the ADuM120N0, ADuM1285, and ADuM3210 series.

• Thermal Stability: The CA-IS3720LS provides superior thermal stability, making it the ideal choice for automotive and industrial applications that require operation in fluctuating temperatures.

Conclusion

The CA-IS3720LS offers significant advantages over the ADuM120N0BRZ, ADuM1285 series, ADuM3210 series, and ADuM1210BRZ, including superior data rates, power efficiency, noise immunity, and fault protection. Its enhanced thermal stability and higher isolation voltage make it ideal for high-performance, high-reliability applications in automotive, industrial, and energy systems.