Overview
The ADUM7643CRQZ is a 6-channel digital isolator produced by Analog Devices Inc. This component utilizes Analog Devices' iCoupler technology to provide reliable and high-speed digital isolation. It is designed to meet the needs of various applications requiring multiple channels of isolation, such as general-purpose isolation, SPI interface/data converter isolation, and industrial field bus isolation. The ADUM7643CRQZ is packaged in a compact 20-lead QSOP, offering space savings and a lower cost compared to higher voltage isolation solutions when only functional isolation is required.
Key Specifications
| Attribute | Value |
|---|---|
| Manufacturer | Analog Devices Inc. |
| Part Number | ADUM7643CRQZ |
| Package | 20-lead QSOP (0.154", 3.90mm Width) |
| Isolation Voltage | 1 kV RMS |
| Number of Channels | 6 |
| Data Rate | Up to 25 Mbps (NRZ) |
| Supply Voltage | 3.0 V to 5.5 V |
| Operating Temperature | Up to 105°C |
| Common-Mode Transient Immunity | >15 kV/μs |
| Output Rise/Fall Time | 2.5 ns (10% to 90%) |
| Input Voltage Threshold | Logic High: 0.7 VDDx, Logic Low: 0.3 VDDx |
| Output Voltages | Logic High: VDDx - 0.1 V, Logic Low: 0.0 V to 0.1 V |
Key Features
- High-Speed Data Transfer: Up to 25 Mbps data rate (NRZ) for fast and reliable communication.
- Low Power Consumption: Uses one-tenth to one-sixth the power of other digital isolators, with maximum current per channel of 7.8 mA at 25 Mbps.
- High Temperature Operation: Operates up to 105°C, making it suitable for a wide range of environments.
- High Common-Mode Transient Immunity: >15 kV/μs, ensuring robust performance against transient voltages.
- Channel-by-Channel Glitch Filter: Protects against extraneous noise disturbances.
- Default Output High Logic State: Ensures safe operation in the absence of input power.
- Compact Packaging: 20-lead QSOP package for space savings.
Applications
- General-Purpose Isolation: Suitable for various applications requiring multiple channels of digital isolation.
- SPI Interface/Data Converter Isolation: Ideal for isolating SPI interfaces and data converters.
- RS-232/RS-422/RS-485 Transceivers: Used in serial communication systems to ensure isolated data transfer.
- Industrial Field Bus Isolation: Applies to industrial field bus systems such as Profibus, DeviceNet, and CAN bus.
Q & A
- What is the isolation voltage of the ADUM7643CRQZ?
The ADUM7643CRQZ has an isolation voltage of 1 kV RMS.
- How many channels does the ADUM7643CRQZ have?
The ADUM7643CRQZ has 6 channels.
- What is the maximum data rate of the ADUM7643CRQZ?
The maximum data rate is up to 25 Mbps (NRZ).
- What is the operating temperature range of the ADUM7643CRQZ?
The operating temperature range is up to 105°C.
- What is the common-mode transient immunity of the ADUM7643CRQZ?
The common-mode transient immunity is >15 kV/μs.
- What is the package type of the ADUM7643CRQZ?
The package type is a 20-lead QSOP (0.154", 3.90mm Width).
- Does the ADUM7643CRQZ support bidirectional communication?
- What is the power consumption of the ADUM7643CRQZ?
The maximum current per channel is 7.8 mA at 25 Mbps.
- Does the ADUM7643CRQZ have a default output state in the absence of input power?
- What are some common applications of the ADUM7643CRQZ?
