Overview
The ADUM121N1WBRZ is a dual-channel digital isolator produced by Analog Devices Inc., utilizing the company's proprietary iCoupler technology. This component combines high-speed performance with complementary metal-oxide semiconductor (CMOS) and monolithic air core transformer technology, offering superior isolation characteristics compared to optocouplers and other integrated couplers. The ADUM121N1WBRZ is designed to provide reliable and high-speed data transfer across isolation barriers, making it suitable for a wide range of applications that require robust electrical isolation.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Unit | Test Conditions/Comments |
|---|---|---|---|---|---|---|
| Supply Current Side 1 | IDD1 | 2.4 | 4.7 | 8.0 | mA | VDD1 = 1.8 V, 50% duty cycle signals |
| Supply Current Side 2 | IDD2 | 2.9 | 4.9 | 7.7 | mA | VDD2 = 1.8 V, 50% duty cycle signals |
| Propagation Delay | tP | - | 13 | - | ns | |
| Pulse Width Distortion | PWD | - | 3 | - | ns | |
| Data Rate | - | - | 150 | - | Mbps | |
| Isolation Voltage | VIOSM | - | - | 3000 | Vrms | |
| Common-Mode Transient Immunity | |CMH| | 75 | - | 100 | kV/µs |
Key Features
- High-Speed Data Transfer: Supports data rates up to 150 Mbps with a propagation delay of 13 ns and a pulse width distortion of less than 3 ns.
- Robust Isolation: Provides 3000 Vrms isolation voltage, ensuring reliable electrical isolation between the input and output sides.
- Low Power Consumption: Operates with supply currents as low as 2.4 mA on each side, making it energy-efficient.
- Wide Operating Range: Compatible with a variety of supply voltages (1.7 V to 5.5 V) and operating temperatures (-40°C to +125°C).
- Common-Mode Transient Immunity: Offers high immunity to common-mode transients, up to 100 kV/µs.
Applications
- Industrial I/O: Suitable for industrial control systems, sensors, and actuators where electrical isolation is critical.
- Automotive Interfaces: Used in automotive systems such as CAN, audio, and Ethernet interfaces.
- Medical Devices: Compliant with medical safety standards like IEC 60601-1, making it suitable for medical device applications.
- Powerline Communications: Can be used in powerline communication systems due to its high isolation and transient immunity.
- General Purpose Isolation: Applicable in any scenario requiring reliable digital signal isolation, such as in control systems, data acquisition, and more.
Q & A
- What is the ADUM121N1WBRZ used for?
The ADUM121N1WBRZ is a dual-channel digital isolator used to provide high-speed data transfer across electrical isolation barriers.
- What is the maximum data rate supported by the ADUM121N1WBRZ?
The ADUM121N1WBRZ supports data rates up to 150 Mbps.
- What is the isolation voltage rating of the ADUM121N1WBRZ?
The ADUM121N1WBRZ has an isolation voltage rating of 3000 Vrms.
- What are the typical supply currents for the ADUM121N1WBRZ?
The typical supply currents are 2.4 mA to 4.7 mA for Side 1 and 2.9 mA to 4.9 mA for Side 2.
- What is the common-mode transient immunity of the ADUM121N1WBRZ?
The common-mode transient immunity is up to 100 kV/µs.
- What are the operating temperature and voltage ranges for the ADUM121N1WBRZ?
The operating temperature range is -40°C to +125°C, and the supply voltage range is 1.7 V to 5.5 V.
- Is the ADUM121N1WBRZ compliant with medical safety standards?
Yes, it is compliant with IEC 60601-1 and other relevant safety standards.
- What are some common applications of the ADUM121N1WBRZ?
Common applications include industrial I/O, automotive interfaces, medical devices, and general-purpose isolation in control systems and data acquisition.
- What technology does the ADUM121N1WBRZ use for isolation?
The ADUM121N1WBRZ uses Analog Devices' iCoupler technology, which combines CMOS and monolithic air core transformer technology.
- What is the package type of the ADUM121N1WBRZ?
The ADUM121N1WBRZ is available in an 8-SOIC package.
