Overview
The ADUM2402CRWZ is a quad-channel digital isolator produced by Analog Devices Inc., utilizing the company's proprietary iCoupler® technology. This device is designed to provide high-speed digital isolation with precise timing characteristics, making it suitable for a variety of applications that require reliable and high-performance signal isolation.
Key Specifications
| Parameter | Value | Conditions |
|---|---|---|
| Supply Voltage Range | 2.7 V to 5.5 V | Both sides |
| Total Supply Current (Four Channels) | 1.5 mA to 2.1 mA | DC to 1 MHz logic signal frequency |
| Total Supply Current (Four Channels) | 3.0 mA to 4.2 mA | 5 MHz logic signal frequency |
| Total Supply Current (Four Channels) | 44 mA to 62 mA | 90 Mbps (CRWZ Grade Only) |
| Logic High Input Threshold | 2.0 V | |
| Logic Low Input Threshold | 0.8 V | |
| Propagation Delay | 50 ns to 100 ns | CL = 15 pF, CMOS signal levels |
| Pulse-Width Distortion | < 2 ns (CRWZ grade) | CL = 15 pF, CMOS signal levels |
| Maximum Data Rate | Up to 90 Mbps (NRZ) | CRWZ Grade Only |
| Operating Temperature Range | -40°C to 105°C |
Key Features
- Bidirectional Communication: Supports bidirectional data transfer across the isolation barrier.
- 3 V/5 V Level Translation: Compatible with both 3 V and 5 V logic systems, enabling voltage translation across the isolation barrier.
- High Data Rate: Capable of handling data rates up to 90 Mbps (NRZ) for high-speed applications.
- Precise Timing Characteristics: Offers low pulse width distortion and tight channel-to-channel matching, ensuring reliable and precise signal transmission.
- High Temperature Operation: Operates reliably in temperatures up to 105°C.
- Refresh Feature: Ensures dc correctness in the absence of input logic transitions and during power-up/power-down conditions.
Applications
- Industrial Control Systems: Used in industrial automation for isolating control signals and ensuring reliable communication.
- Medical Devices: Applied in medical equipment to isolate patient interfaces from the system electronics for safety.
- Automotive Systems: Utilized in automotive electronics for isolating high-voltage and low-voltage systems.
- Power Supplies and DC-DC Converters: Employed to isolate feedback signals in power supply and DC-DC converter designs.
- Test and Measurement Equipment: Used to isolate signals in test and measurement instruments to prevent ground loops and ensure accurate measurements.
Q & A
- What is the ADUM2402CRWZ used for?
The ADUM2402CRWZ is a quad-channel digital isolator used to isolate digital signals and provide level translation between different voltage domains.
- What is the supply voltage range for the ADUM2402CRWZ?
The supply voltage range for the ADUM2402CRWZ is from 2.7 V to 5.5 V on both sides of the isolator.
- What are the maximum data rates supported by the ADUM2402CRWZ?
The ADUM2402CRWZ supports data rates up to 90 Mbps (NRZ) for the CRWZ grade.
- What is the operating temperature range of the ADUM2402CRWZ?
The operating temperature range of the ADUM2402CRWZ is from -40°C to 105°C.
- Does the ADUM2402CRWZ support bidirectional communication?
- What is the purpose of the refresh feature in the ADUM2402CRWZ?
The refresh feature ensures dc correctness in the absence of input logic transitions and during power-up/power-down conditions.
- What are some common applications of the ADUM2402CRWZ?
- What is the propagation delay of the ADUM2402CRWZ?
The propagation delay of the ADUM2402CRWZ is between 50 ns to 100 ns.
- Does the ADUM2402CRWZ provide level translation?
- What is the pulse-width distortion of the ADUM2402CRWZ?
The pulse-width distortion of the ADUM2402CRWZ is less than 2 ns for the CRWZ grade.
