Four-Channel Digital Isolator – Reinforced – High Speed – Low-Power
The project presented here is a high-speed, low-power 4-channel digital galvanic isolator. This innovative solution enables the transfer of digital signals between circuits with different power domains, achieving an impressive power consumption of as little as 0.74mW per channel at a data rate of 1 Mbps, while operating on a 1.8V supply. At the heart of this project is the MAX22445FAWE chip, which features reinforced isolation, allowing it to withstand a voltage rating of 5KV-RMS for 60 seconds. This robust design ensures reliable and secure signal transmission.
The project offers flexible configuration options, accommodating all possible unidirectional channel configurations to suit any 4-channel design. This versatility makes it an ideal solution for a wide range of applications, including SPI, RS-485, digital I/O, etc.
Notably, the output that enables the A side of the isolation can be connected to a shared SPI bus, allowing the CS signal to directly enable the MISO signal on the isolator. Additionally, all other output enables are traditional active-high, providing a convenient and straightforward interface.
Overall, this high-speed, low-power digital galvanic isolator project provides a reliable and efficient solution for transferring digital signals between circuits with different power domains, making it an attractive option for a variety of applications.
Features
- Power Supply A-Side 1.71V to 5.5V
- Power Supply B-Side 1.71V to 5.5V
- Power LED for both sides A and B
- SMA connectors for Inputs and Outputs for High-Speed Data Transfer
- Header Connector for Power
- Ferrite Bead On power line to prevent noise
- Reinforced Galvanic Isolation for Fast Digital Signals Up to 200Mbps Maximum Data Rate
- Withstands 5kVRMS for 60s (VISO)
- Continuously Withstands 1500VRMS (VIOWM)
- Withstands ±12.8kV Surge Between GNDA and
- GNDB with 1.2/50μs waveform
- High CMTI (50kV/μs, Typical)
- Low Power Consumption 0.74mW per Channel at 1Mbps with VDD = 1.8V
- 4mW per Channel at 1Mbps with VDD = 3.3V
- 2mW per Channel at 100Mbps with VDD = 1.8V
- 3 Direction Configurations
- Active-High or Active-Low Enable Inputs
- 2 Fixed Output Default States (High/Low)
- 4 x 3 mm PCB Mounting Holes
- PCB Dimensions 54.77 x 45.09 mm
Share
The project presented here is a high-speed, low-power 4-channel digital galvanic isolator. This innovative solution enables the transfer of digital signals between circuits with different power domains, achieving an impressive power consumption of as little as 0.74mW per channel at a data rate of 1 Mbps, while operating on a 1.8V supply. At the heart of this project is the MAX22445FAWE chip, which features reinforced isolation, allowing it to withstand a voltage rating of 5KV-RMS for 60 seconds. This robust design ensures reliable and secure signal transmission.
The project offers flexible configuration options, accommodating all possible unidirectional channel configurations to suit any 4-channel design. This versatility makes it an ideal solution for a wide range of applications, including SPI, RS-485, digital I/O, etc.
Notably, the output that enables the A side of the isolation can be connected to a shared SPI bus, allowing the CS signal to directly enable the MISO signal on the isolator. Additionally, all other output enables are traditional active-high, providing a convenient and straightforward interface.
Overall, this high-speed, low-power digital galvanic isolator project provides a reliable and efficient solution for transferring digital signals between circuits with different power domains, making it an attractive option for a variety of applications.
Features
- Power Supply A-Side 1.71V to 5.5V
- Power Supply B-Side 1.71V to 5.5V
- Power LED for both sides A and B
- SMA connectors for Inputs and Outputs for High-Speed Data Transfer
- Header Connector for Power
- Ferrite Bead On power line to prevent noise
- Reinforced Galvanic Isolation for Fast Digital Signals Up to 200Mbps Maximum Data Rate
- Withstands 5kVRMS for 60s (VISO)
- Continuously Withstands 1500VRMS (VIOWM)
- Withstands ±12.8kV Surge Between GNDA and
- GNDB with 1.2/50μs waveform
- High CMTI (50kV/μs, Typical)
- Low Power Consumption 0.74mW per Channel at 1Mbps with VDD = 1.8V
- 4mW per Channel at 1Mbps with VDD = 3.3V
- 2mW per Channel at 100Mbps with VDD = 1.8V
- 3 Direction Configurations
- Active-High or Active-Low Enable Inputs
- 2 Fixed Output Default States (High/Low)
- 4 x 3 mm PCB Mounting Holes
- PCB Dimensions 54.77 x 45.09 mm
Dotfry has partnered with reputed logistic partners for our logistic services, to ensure that all our products reach you in the best of conditions with no damages. We ensure you that we use packaging materials of the best quality, which is sourced from reliable vendors, and ensure thorough testing of package worthiness before using them for shipping and delivery of our products.
Related Products
