Overview
The ADUM7642ARQZ is a 6-channel digital isolator produced by Analog Devices Inc. This device utilizes Analog Devices' iCoupler® technology, providing reliable and efficient digital isolation. It is packaged in a compact 20-lead QSOP, offering significant space savings and a lower cost compared to higher voltage isolation solutions. The ADUM7642ARQZ is designed for general-purpose isolation and is particularly useful in applications where functional isolation is sufficient, such as in industrial field bus isolation, SPI interface/data converter isolation, and RS-232/RS-422/RS-485 transceivers.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Comments |
|---|---|---|---|---|---|
| Supply Voltage | 3.0 | 5.5 | V | On either side | |
| Data Rate | 1 Mbps / 25 Mbps | Depending on the model | |||
| Propagation Delay | 75 ns | ||||
| Common-Mode Transient Immunity | 15 kV/μs | ||||
| Operating Temperature | -40°C | 105°C | °C | ||
| Input Current per Channel | -10 μA | 0.01 μA | 10 μA | μA | 0 V ≤ VIx ≤ VDDx |
| Output Rise/Fall Time | 2.5 ns | ns | 10% to 90% | ||
| Input to Output Resistance | 1013 Ω | Ω | |||
| Input to Output Capacitance | 2 pF | pF |
Key Features
- Low Power Consumption: Uses one-tenth to one-sixth the power of other digital isolators, with a maximum current of 7.8 mA per channel at 25 Mbps operation.
- High Data Rate: Supports data rates up to 25 Mbps.
- High Common-Mode Transient Immunity: Greater than 15 kV/μs, ensuring robust performance in noisy environments.
- Channel-by-Channel Glitch Filter: Protects against extraneous noise disturbances.
- Low Pulse Width Distortion: Less than 6 ns for C grade devices.
- 3 V/5 V Level Translation: Compatible with both 3 V and 5 V logic levels.
- High Temperature Operation: Operates up to 105°C.
- Compact Packaging: 20-lead QSOP package for space savings.
Applications
- General-Purpose Isolation: Suitable for various isolation needs where functional isolation is sufficient.
- 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: Applies to industrial field bus systems for reliable data transmission.
- Automotive Interfaces: Used in automotive applications such as CAN, audio, and Ethernet interfaces.
- Industrial I/O and IO-Link: Suitable for industrial input/output and IO-Link applications.
Q & A
- What is the maximum data rate supported by the ADUM7642ARQZ?
The ADUM7642ARQZ supports data rates up to 25 Mbps.
- What is the operating temperature range of the ADUM7642ARQZ?
The device operates from -40°C to 105°C.
- What is the common-mode transient immunity of the ADUM7642ARQZ?
The common-mode transient immunity is greater than 15 kV/μs.
- What is the package type of the ADUM7642ARQZ?
The device is packaged in a 20-lead QSOP.
- What are the supply voltage ranges for the ADUM7642ARQZ?
The supply voltage ranges from 3.0 V to 5.5 V on either side.
- Does the ADUM7642ARQZ support level translation?
Yes, it supports 3 V/5 V level translation.
- What is the propagation delay of the ADUM7642ARQZ?
The propagation delay is 75 ns.
- How does the ADUM7642ARQZ protect against noise disturbances?
The device includes a channel-by-channel glitch filter to protect against extraneous noise disturbances.
- What are some common applications of the ADUM7642ARQZ?
Common applications include general-purpose isolation, SPI interface/data converter isolation, RS-232/RS-422/RS-485 transceivers, and industrial field bus isolation.
- Is the ADUM7642ARQZ RoHS compliant?
Yes, the ADUM7642ARQZ is RoHS compliant.
