Overview
The ADUM5211ARSZ from Analog Devices Inc. is a dual-channel digital isolator that incorporates the isoPower® technology, an integrated, isolated dc-to-dc converter. This device is based on Analog Devices' iCoupler® technology, which provides regulated, isolated power adjustable between 3.135 V and 5.25 V. The ADUM5211ARSZ eliminates the need for a separate isolated dc-to-dc converter in low-power, isolated designs, making it highly efficient and compact. It is packaged in a 20-lead SSOP with a creepage distance of 5.3 mm and is approved by various safety and regulatory standards including UL 1577, IEC/CSA 62368-1, and IEC/CSA 61010-1.
Key Specifications
| Parameter | Value | Unit | Comments |
|---|---|---|---|
| Number of Channels | 2 | - | Dual-channel digital isolator |
| Isolated Power Output | 3.135 V to 5.25 V | V | Adjustable output voltage |
| Output Power | Up to 150 mW | mW | - |
| Data Rate | Up to 100 Mbps | Mbps | Dual dc-to-100 Mbps (NRZ) signal isolation channels |
| Propagation Delay | 50 ns (typical) | ns | 50% input to 50% output |
| Pulse Width Distortion (PWD) | 10 ns (typical) | ns | - |
| Common-Mode Transient Immunity | >25 kV/μs | kV/μs | - |
| Operating Temperature | -40°C to +105°C | °C | - |
| Package | 20-lead SSOP | - | Creepage distance of 5.3 mm |
| Isolation Voltage | 2500 V rms for 1 minute | V rms | UL 1577 compliant |
Key Features
- Integrated isoPower® DC-to-DC Converter: Provides regulated, isolated power adjustable between 3.135 V and 5.25 V.
- Dual-Channel Digital Isolation: Supports up to 100 Mbps data rate for each channel.
- High Common-Mode Transient Immunity: Greater than 25 kV/μs, ensuring robust performance in noisy environments.
- Soft Start Power Supply: Reduces inrush current and ensures smooth power-up).
- High Temperature Operation: Operates from -40°C to +105°C, making it suitable for a wide range of applications).
- Compact Packaging: 20-lead SSOP package with a creepage distance of 5.3 mm).
- SPI Support: Supports SPI up to 15 MHz).
Applications
- RS-232 Transceivers: Used in serial communication interfaces).
- Power Supply Start-Up Bias and Gate Drives: Provides isolated power for start-up and gate drive applications).
- Isolated Sensor Interfaces: Ensures safe and reliable data transmission from sensors in isolated environments).
- Industrial PLCs: Used in industrial control systems for reliable and isolated signal transmission).
Q & A
- Q: What is the ADUM5211ARSZ and what technology does it use?
A: The ADUM5211ARSZ is a dual-channel digital isolator that uses Analog Devices' iCoupler® technology, which includes an integrated, isolated dc-to-dc converter known as isoPower®.
- Q: What is the output power range of the ADUM5211ARSZ?
A: The ADUM5211ARSZ can provide up to 150 mW of isolated power.
- Q: What are the key safety and regulatory approvals for the ADUM5211ARSZ?
A: The ADUM5211ARSZ is approved by UL 1577, IEC/CSA 62368-1, IEC/CSA 61010-1, and other relevant standards.
- Q: What is the operating temperature range of the ADUM5211ARSZ?
A: The ADUM5211ARSZ operates from -40°C to +105°C.
- Q: What is the maximum data rate supported by the ADUM5211ARSZ?
A: The ADUM5211ARSZ supports data rates up to 100 Mbps for each channel.
- Q: Does the ADUM5211ARSZ support SPI communication?
A: Yes, the ADUM5211ARSZ supports SPI up to 15 MHz.
- Q: What is the common-mode transient immunity of the ADUM5211ARSZ?
A: The ADUM5211ARSZ has a common-mode transient immunity greater than 25 kV/μs.
- Q: What are some common applications of the ADUM5211ARSZ?
A: Common applications include RS-232 transceivers, power supply start-up bias and gate drives, isolated sensor interfaces, and industrial PLCs.
- Q: What is the package type and pin count of the ADUM5211ARSZ?
A: The ADUM5211ARSZ is packaged in a 20-lead SSOP with a creepage distance of 5.3 mm.
- Q: How does the ADUM5211ARSZ ensure isolated power supply?
A: The ADUM5211ARSZ uses the isoPower® integrated, isolated dc-to-dc converter to provide regulated, isolated power.
