Overview
The SI8901D-A02-GSR, produced by Skyworks Solutions Inc., is a highly versatile and reliable isolated monitoring Analog-to-Digital Converter (ADC). This component integrates a 10-bit Successive Approximation Register (SAR) ADC subsystem, a supervisory state machine, and an isolated I2C/SMbus port. It is designed to serve as a linear signal galvanic isolator, level shifter, and/or ground loop eliminator in various applications. The device is built using proprietary CMOS isolation technology and is safety certified by UL, CSA, and VDE, ensuring robust performance in noisy and high-voltage environments.
Key Specifications
| Feature | Specification |
|---|---|
| Resolution | 10-bit |
| Package/Case | SOIC-16 |
| Input Channels | 3 |
| Conversion Time | 2.5 µs |
| Serial Port | I2C/SMbus |
| Isolation Voltage | Up to 5 kV |
| Transient Immunity | 45 kV/µs (typ) |
| Temperature Range | –40 to +85 °C |
| Input Side Supply Voltage | 2.7 to 3.6 V |
| Input Side Supply Current | 10 to 13.3 mA (active), 8.6 mA (idle) |
Key Features
- Integrates a 10-bit SAR ADC subsystem with a three-channel analog input multiplexer and a selectable gain amplifier (1x or 0.5x gain).
- Isolated I2C/SMbus port for serial communication, operating at up to 240 kbps.
- High isolation voltage rating of up to 5 kV and transient immunity of 45 kV/µs, ensuring robust performance in noisy environments.
- Safety certified by UL, CSA, and VDE, and compliant with various standards such as IEC 60950, 62368, and 60601.
- Operating temperature range of –40 to +85 °C and a long lifespan of over 60 years at rated working voltage.
Applications
The SI8901D-A02-GSR is suitable for a variety of applications, including:
- Power-delivery systems: It helps in monitoring and controlling power delivery efficiently.
- Solar inverters: The device is useful for isolating and monitoring signals in solar inverter systems.
- Industrial automation: Its robust isolation and high transient immunity make it ideal for industrial automation environments.
- Medical devices: Compliant with medical safety standards, it can be used in medical devices requiring high isolation and reliability.
Q & A
- What is the resolution of the SI8901D-A02-GSR ADC? The resolution of the SI8901D-A02-GSR ADC is 10-bit.
- What type of serial port does the SI8901D-A02-GSR use? The SI8901D-A02-GSR uses an I2C/SMbus serial port.
- What is the isolation voltage rating of the SI8901D-A02-GSR? The isolation voltage rating of the SI8901D-A02-GSR is up to 5 kV.
- What is the operating temperature range of the SI8901D-A02-GSR? The operating temperature range of the SI8901D-A02-GSR is –40 to +85 °C.
- Is the SI8901D-A02-GSR safety certified? Yes, the SI8901D-A02-GSR is safety certified by UL, CSA, and VDE.
- What is the conversion time of the ADC? The conversion time of the ADC is 2.5 µs.
- How many input channels does the SI8901D-A02-GSR have? The SI8901D-A02-GSR has three input channels.
- What is the transient immunity of the SI8901D-A02-GSR? The transient immunity of the SI8901D-A02-GSR is 45 kV/µs (typical).
- In what package is the SI8901D-A02-GSR available? The SI8901D-A02-GSR is available in a SOIC-16 package.
- What are some common applications of the SI8901D-A02-GSR? Common applications include power-delivery systems, solar inverters, industrial automation, and medical devices.
