Overview
The ADUM1447ARQZ-RL7 is a quad-channel, micropower digital isolator produced by Analog Devices Inc. This component utilizes Analog Devices' iCoupler® technology, which combines high-speed, complementary metal oxide semiconductor (CMOS) and monolithic air core transformer technologies. This results in outstanding performance characteristics, including low power consumption and high isolation voltages. The device is packaged in a compact 16-lead QSOP, significantly reducing board space compared to traditional isolators. It operates with supply voltages as low as 2.25 V and supports a wide operating temperature range of -40°C to 125°C.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Unit | Test Conditions/Comments |
|---|---|---|---|---|---|---|
| Input Threshold Logic High | VIH | 0.7 VDDx | 1 V | V | Logic High | |
| Input Threshold Logic Low | VIL | 0.3 VDDx | 1 V | V | Logic Low | |
| Output Voltages Logic High | VOH | VDDx1 - 0.1 | 3.3 V | V | IOUTx = -20 µA, VIx = VIxH | |
| Output Voltages Logic Low | VOL | 0.0 | 0.1 V | V | IOUTx = 20 µA, VIx = VIxL | |
| Input Current per Channel | II | -1 | 0.01 | 1 µA | µA | 0 V ≤ VIx ≤ VDDx1 |
| Supply Current per Channel (Quiescent) | IDDI (Q) | 2.6 | 3.3 | µA | ENX low | |
| Supply Current per Channel (Dynamic) | IDDI (D) | 76 | µA/Mbps | |||
| Operating Voltage Range | 2.25 | 3.6 V | V | |||
| Operating Temperature Range | -40 | 125 °C | °C | |||
| Isolation Voltage | 2.5 kV | V |
Key Features
- Low Power Consumption: The ADUM1447ARQZ-RL7 has a quiescent current of less than 1 µA per channel when the internal refresh is disabled, and less than 10 µA when enabled.
- High Isolation Voltage: The device withstands high isolation voltages up to 2.5 kV and meets regulatory requirements such as UL and CSA standards.
- Compact Packaging: Packaged in a 16-lead QSOP, which frees almost 70% of board space compared to isolators in wide body SOIC packages.
- Low Pulse Width Distortion: The device provides low pulse width distortion of less than 8 ns and includes an input glitch filter to protect against extraneous noise disturbances.
- Wide Operating Voltage Range: Operates with supply voltages as low as 2.25 V and up to 3.6 V.
- High Common-Mode Transient Immunity: Offers high common-mode transient immunity of up to 40 kV/µs.
Applications
- Power Equipment: Suitable for use in power supplies and other power equipment due to its high isolation voltage and low power consumption.
- Medical Equipment: Used in medical devices where isolation is critical for safety and regulatory compliance.
- Communication Systems: Applied in communication systems requiring high-speed data transfer with isolation.
- Industrial Controls: Utilized in industrial control systems for reliable and isolated signal transmission.
- Automotive Electronics: Employed in automotive electronics for robust and isolated communication interfaces.
Q & A
- What is the ADUM1447ARQZ-RL7 used for? The ADUM1447ARQZ-RL7 is a quad-channel digital isolator used to provide electrical isolation between different parts of a system while maintaining high-speed data transfer.
- What is the operating voltage range of the ADUM1447ARQZ-RL7? The operating voltage range is between 2.25 V and 3.6 V.
- What is the maximum isolation voltage of the ADUM1447ARQZ-RL7? The maximum isolation voltage is 2.5 kV.
- What is the typical quiescent current per channel of the ADUM1447ARQZ-RL7? The typical quiescent current per channel is less than 3.3 µA when the internal refresh is enabled and less than 0.05 µA when disabled.
- What are the common applications of the ADUM1447ARQZ-RL7? Common applications include power equipment, medical equipment, communication systems, industrial controls, and automotive electronics.
- What is the package type of the ADUM1447ARQZ-RL7? The device is packaged in a 16-lead QSOP.
- What is the operating temperature range of the ADUM1447ARQZ-RL7? The operating temperature range is from -40°C to 125°C.
- Does the ADUM1447ARQZ-RL7 meet regulatory standards? Yes, it meets regulatory requirements such as UL and CSA standards.
- What is the common-mode transient immunity of the ADUM1447ARQZ-RL7? The common-mode transient immunity is up to 40 kV/µs.
- Does the ADUM1447ARQZ-RL7 have any noise protection features? Yes, it includes an input glitch filter to protect against extraneous noise disturbances.
