This document describes the functional block diagrams of the ADuM7640, ADuM7641, and ADuM7642 products from Analog Devices. These products are digital isolators used for isolating and driving high-speed digital signals. They feature multiple inputs and outputs, encoding and decoding functions, and support dual power supply.
The document is a datasheet for the Analog Devices ADuM7640, ADuM7641, ADuM7642, and ADuM7643 six-channel digital isolators. These devices utilize iCoupler technology to provide 1 kV RMS isolation in a small 20-pin QSOP package. They are designed for applications such as multi-channel isolated SPI interfaces, data converter isolation, and RS-232/RS-422/RS-485 transceivers. This manual is written in Chinese.
| Package Type | 20-pin QSOP |
|---|---|
| Max Data Rate | 25 Mbps |
| Operating Temperature | -40°C to +105°C |
| Common Mode Transient Immunity | >15 kV/µs |
| Supply Voltage (5V) | 4.5 V to 5.5 V |
| Supply Voltage (3.3V) | 3.0 V to 3.6 V |
The maximum bidirectional communication data rate is up to 25 Mbps (NRZ).
The operating temperature range is from -40°C to +105°C.