Overview
The ADUM7441CRQZ, produced by Analog Devices Inc., is a 4-channel digital isolator that leverages the company's iCoupler® technology. This device combines high-speed CMOS and monolithic air core transformer technologies to provide superior performance compared to optocoupler devices and other integrated couplers. The ADUM7441 is part of the ADuM7440/ADuM7441/ADuM7442 family, which is known for its high isolation rating, low power consumption, and compact packaging in a 16-lead QSOP package.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Unit | Test Conditions |
|---|---|---|---|---|---|---|
| Isolation Rating | VISO | 1000 | V rms | |||
| Supply Voltage | VDD1/VDD2 | 3.0/4.5 | 3.3/5 | 3.6/5.5 | V | |
| Supply Current per Channel (5V, 0-1 Mbps) | IDD1/IDD2 | 2.25 | 11.5 | mA | ||
| Supply Current per Channel (3.3V, 0-1 Mbps) | IDD1/IDD2 | 1.5 | 8.25 | mA | ||
| Data Rate | 1 | 25 | Mbps | |||
| Propagation Delay | tPHL, tPLH | 55 | 80 | 60 | ns | 50% input to 50% output |
| Common-Mode Transient Immunity | |CM| | 15 | 25 | kV/μs | VIx = VDDx, VCM = 1000 V, transient magnitude = 800 V | |
| Operating Temperature | TA | -40 | 105 | °C |
Key Features
- Small Package: 16-lead QSOP, saving nearly 70% of board space compared to 16-lead wide SOIC packages.
- High Isolation Rating: 1000 V rms isolation rating with UL recognition (UL 1577) for 1 minute at 2500 V rms.
- Low Power Operation: Low supply current per channel, with 2.25 mA at 0-1 Mbps and 11.5 mA at 25 Mbps for 5V operation, and 1.5 mA at 0-1 Mbps and 8.25 mA at 25 Mbps for 3.3V operation.
- Bidirectional Communication: Supports up to 25 Mbps data rate (NRZ) with bidirectional communication capability.
- Level Translation: 3V/5V level translation, enabling compatibility with different voltage systems.
- High Temperature Operation: Operates up to 105°C, ensuring reliability in high-temperature environments.
- High Common-Mode Transient Immunity: >15 kV/μs, providing robust protection against common-mode transients).
Applications
- General-purpose, Multichannel Isolation: Suitable for various isolation needs in multiple channels).
- 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 isolation rating of the ADUM7441CRQZ?
The ADUM7441CRQZ has a 1000 V rms isolation rating with UL recognition (UL 1577) for 1 minute at 2500 V rms).
- What is the package type of the ADUM7441CRQZ?
The ADUM7441CRQZ is packaged in a 16-lead QSOP).
- What are the supply voltage ranges for the ADUM7441CRQZ?
The supply voltage ranges are 3.0 V to 3.6 V for VDD1 and 4.5 V to 5.5 V for VDD2).
- What is the maximum data rate supported by the ADUM7441CRQZ?
The ADUM7441CRQZ supports up to 25 Mbps data rate (NRZ)).
- Does the ADUM7441CRQZ support bidirectional communication?
Yes, the ADUM7441CRQZ supports bidirectional communication).
- What is the common-mode transient immunity of the ADUM7441CRQZ?
The common-mode transient immunity is >15 kV/μs).
- What are the typical supply currents for the ADUM7441CRQZ at different data rates?
For 5V operation, the supply current is 2.25 mA at 0-1 Mbps and 11.5 mA at 25 Mbps. For 3.3V operation, it is 1.5 mA at 0-1 Mbps and 8.25 mA at 25 Mbps).
- What are the main applications of the ADUM7441CRQZ?
The main applications include general-purpose multichannel isolation, SPI interface/data converter isolation, RS-232/RS-422/RS-485 transceivers, and industrial field bus isolation).
- What is the operating temperature range of the ADUM7441CRQZ?
The operating temperature range is -40°C to 105°C).
- Does the ADUM7441CRQZ support 3V/5V level translation?
Yes, the ADUM7441CRQZ supports 3V/5V level translation).
