Overview
The ADUM7441CRQZ-RL7, produced by Analog Devices Inc., is part of the ADuM7440/ADuM7441/ADuM7442 family of quad 1 kV digital isolation devices. These devices are based on Analog Devices' iCoupler technology, which combines high-speed CMOS and monolithic air core transformer technologies to provide superior performance characteristics compared to optocouplers and other integrated couplers. The ADUM7441 is packaged in a small 16-lead QSOP, making it suitable for applications requiring compact, high-performance digital isolation.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Unit | Test Conditions |
|---|---|---|---|---|---|---|
| Isolation Voltage | VISO | 1000 | Vrms | For 1 minute | ||
| Supply Voltage | VDDx | 4.5 | 5 | 5.5 | V | |
| Quiescent Input Supply Current | IDDI(Q) | 0.76 | 0.95 | mA | 0 V ≤ VIx ≤ VDDx | |
| Quiescent Output Supply Current | IDDO(Q) | 0.57 | 0.73 | mA | 0 V ≤ VIx ≤ VDDx | |
| Dynamic Input Supply Current | IDDI(D) | 0.26 | mA/Mbps | |||
| Dynamic Output Supply Current | IDDO(D) | 0.05 | mA/Mbps | |||
| Data Rate | 25 | Mbps | ||||
| Propagation Delay | tPHL, tPLH | 50 | 75 | ns | 50% input to 50% output | |
| Common-Mode Transient Immunity | |CM| | 15 | 20 | kV/μs | VIx = VDDx, VCM = 1000 V, transient magnitude = 800 V |
Key Features
- Small Package: Packaged in a 16-lead QSOP, making it suitable for compact designs.
- High Isolation Voltage: 1000 Vrms isolation rating and safety and regulatory approvals including UL 1577.
- Low Power Operation: Low power consumption with 2.25 mA per channel maximum at 0 Mbps to 1 Mbps for 5V operation and 1.5 mA per channel maximum at 0 Mbps to 1 Mbps for 3.3V operation.
- High-Speed Data Rate: Up to 25 Mbps data rate (NRZ) and bidirectional communication.
- Level Translation: Supports 3V/5V level translation.
- High Temperature Operation: Operates up to 105°C.
- High Common-Mode Transient Immunity: >15 kV/μs common-mode transient immunity.
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 such as RS-232, RS-422, and RS-485.
- Industrial Field Bus Isolation: Applicable in industrial field bus systems for reliable data transmission).
Q & A
- What is the isolation voltage rating of the ADUM7441CRQZ-RL7?
The ADUM7441CRQZ-RL7 has a 1000 Vrms isolation voltage rating.
- What is the maximum data rate supported by the ADUM7441CRQZ-RL7?
The device supports up to 25 Mbps data rate (NRZ).
- What are the operating supply voltage ranges for the ADUM7441CRQZ-RL7?
The device operates with supply voltages ranging from 4.5V to 5.5V.
- What is the maximum operating temperature of the ADUM7441CRQZ-RL7?
The device can operate up to 105°C.
- What kind of regulatory approvals does the ADUM7441CRQZ-RL7 have?
The device has safety and regulatory approvals including UL 1577.
- What is the common-mode transient immunity of the ADUM7441CRQZ-RL7?
The device has a common-mode transient immunity of >15 kV/μs.
- What is the package type of the ADUM7441CRQZ-RL7?
The device is packaged in a 16-lead QSOP.
- Does the ADUM7441CRQZ-RL7 support bidirectional communication?
Yes, the device supports bidirectional communication.
- What are some typical applications of the ADUM7441CRQZ-RL7?
Typical applications include general-purpose multichannel isolation, SPI interface/data converter isolation, RS-232/RS-422/RS-485 transceivers, and industrial field bus isolation.
- How much current does the ADUM7441CRQZ-RL7 consume per channel at low data rates?
The device consumes 2.25 mA per channel maximum at 0 Mbps to 1 Mbps for 5V operation and 1.5 mA per channel maximum at 0 Mbps to 1 Mbps for 3.3V operation.
