Overview
The ADUM7643ARQZ-RL7 is a 1 kV RMS six-channel digital isolator produced by Analog Devices Inc. This component is part of the ADuM7640/ADuM7641/ADuM7642/ADuM7643 family, which utilizes Analog Devices' iCoupler® technology for magnetic coupling. It is designed to provide reliable and efficient digital isolation in various applications, offering space savings and lower power consumption compared to higher voltage isolation solutions.
Key Specifications
| Parameter | Value | Unit | Test Conditions/Comments |
|---|---|---|---|
| Data Rate | Up to 25 Mbps | Mbps | NRZ (Non-Return-to-Zero) coding |
| Isolation Voltage | 1 kV RMS | kV | |
| Supply Voltage | 3.0 V to 5.5 V | V | On either side |
| Power Consumption | 7.8 mA per channel (max) at 25 Mbps, 5 V operation | mA | |
| Output Rise/Fall Time | 2.5 ns (10% to 90%) | ns | |
| Common-Mode Transient Immunity | >15 kV/μs | kV/μs | |
| Input Voltage Threshold (Logic High) | 0.7 * VDDx | V | |
| Input Voltage Threshold (Logic Low) | 0.3 * VDDx | V | |
| Output Voltages (Logic High) | VDDx - 0.1 VDDx | V | IOx = -20 μA |
| Output Voltages (Logic Low) | 0.0 to 0.1 V | V | IOx = 20 μA |
| Input Current per Channel | -10 to +10 μA | μA | 0 V ≤ VIx ≤ VDDx |
| Package Type | 20-lead QSOP | ||
| Operating Temperature | Up to 105°C | °C |
Key Features
- Low Power Consumption: Uses one-tenth to one-sixth the power of other digital isolators.
- High Data Rate: Supports up to 25 Mbps data rate with NRZ coding.
- High Common-Mode Transient Immunity: >15 kV/μs, ensuring robust performance in noisy environments.
- Space Savings: Packaged in a small 20-lead QSOP, offering a compact solution.
- Channel-by-Channel Glitch Filter: Protects the device against extraneous noise disturbances.
- Default Output High Logic State: Ensures a default high logic state in the absence of input power.
- 3 V/5 V Level Translation: Supports operation with supply voltages ranging from 3.0 V to 5.5 V on either side.
Applications
- General-Purpose Isolation: Suitable for various isolation needs where functional isolation is required.
- SPI Interface/Data Converter Isolation: Ideal for isolating SPI interfaces and data converters.
- RS-232/RS-422/RS-485 Transceivers: Used in serial communication interfaces.
- Industrial Field Bus Isolation: Applicable in industrial field bus systems for reliable data transmission.
Q & A
- What is the maximum data rate supported by the ADUM7643ARQZ-RL7?
The ADUM7643ARQZ-RL7 supports up to 25 Mbps data rate with NRZ coding. - What is the isolation voltage of the ADUM7643ARQZ-RL7?
The isolation voltage is 1 kV RMS. - What are the supply voltage ranges for the ADUM7643ARQZ-RL7?
The supply voltage ranges from 3.0 V to 5.5 V on either side. - How much power does the ADUM7643ARQZ-RL7 consume?
The power consumption is up to 7.8 mA per channel at 25 Mbps, 5 V operation. - What is the common-mode transient immunity of the ADUM7643ARQZ-RL7?
The common-mode transient immunity is >15 kV/μs. - What package type is the ADUM7643ARQZ-RL7 available in?
The component is packaged in a 20-lead QSOP. - What is the operating temperature range of the ADUM7643ARQZ-RL7?
The operating temperature range is up to 105°C. - Does the ADUM7643ARQZ-RL7 have any built-in noise protection features?
Yes, it includes a channel-by-channel glitch filter to protect against extraneous noise disturbances. - What is the default output logic state of the ADUM7643ARQZ-RL7 in the absence of input power?
The default output logic state is high. - Can the ADUM7643ARQZ-RL7 perform level translation between different voltage levels?
Yes, it supports 3 V/5 V level translation.
