Overview
The ADUM1200CRZ is a dual-channel digital isolator produced by Analog Devices Inc., utilizing the company's proprietary iCoupler technology. This component is designed to provide high-speed, low-latency digital isolation with voltage translation capabilities. It is particularly useful in applications requiring precise timing and high common-mode transient immunity. The ADUM1200CRZ supports bidirectional communication and operates over a wide temperature range, making it suitable for various industrial and automotive applications.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Test Conditions/Comments |
|---|---|---|---|---|---|
| Maximum Data Rate | - | - | 25 Mbps | - | NRZ (Non-Return-to-Zero) coding |
| Propagation Delay (tPHL, tPLH) | 15 ns | - | 55 ns | - | CL = 15 pF, CMOS signal levels |
| Pulse Width Distortion (PWD) | - | - | 40 ns | - | CL = 15 pF, CMOS signal levels |
| Channel-to-Channel Matching | - | - | 50 ns | - | tPSKCD/tPSKOD |
| Output Rise/Fall Time (10% to 90%) | - | - | 5 ns | - | 3 V/5 V Operation |
| Common-Mode Transient Immunity | 25 kV/μs | - | - | - | VIx = VDD1 or VDD2, VCM = 1000 V, transient magnitude = 800 V |
| Operating Temperature | -40°C | - | 125°C | - | - |
| Supply Current per Channel | - | - | 2.2 mA @ 10 Mbps | - | Maximum at 10 Mbps |
Key Features
- High-Speed Data Transfer: Supports data rates up to 25 Mbps with low propagation delay and pulse width distortion.
- Voltage Translation: Enables 3 V/5 V level translation across the isolation barrier.
- High Common-Mode Transient Immunity: Offers immunity to common-mode transients greater than 25 kV/μs.
- Precise Timing Characteristics: Ensures tight channel-to-channel matching and low pulse width distortion.
- Automotive Grade: Qualified for automotive applications with operation up to 125°C.
- Safety and Regulatory Approvals: Meets UL, CSA, and VDE safety standards.
- Refresh Feature: Ensures dc correctness in the absence of input logic transitions and during power-up/power-down conditions.
Applications
- Size-Critical Multichannel Isolation: Ideal for applications where space is limited.
- SPI Interface/Data Converter Isolation: Used in SPI and data converter interfaces to ensure isolation.
- RS-232/RS-422/RS-485 Transceiver Isolation: Suitable for isolating serial communication interfaces.
- Digital Field Bus Isolation: Used in various field bus protocols for isolation.
- Hybrid Electric Vehicles and Motor Drives: Qualified for use in automotive and industrial motor drive applications.
- Battery Monitoring Systems: Used in battery monitoring systems for isolation and protection.
Q & A
- What is the maximum data rate supported by the ADUM1200CRZ?
The ADUM1200CRZ supports data rates up to 25 Mbps. - What is the propagation delay of the ADUM1200CRZ?
The propagation delay (tPHL, tPLH) is between 15 ns and 55 ns. - Does the ADUM1200CRZ support voltage translation?
Yes, it supports 3 V/5 V level translation. - What is the common-mode transient immunity of the ADUM1200CRZ?
The common-mode transient immunity is greater than 25 kV/μs. - Is the ADUM1200CRZ qualified for automotive applications?
Yes, it is qualified for automotive applications and can operate up to 125°C. - What safety standards does the ADUM1200CRZ meet?
The ADUM1200CRZ meets UL, CSA, and VDE safety standards. - What is the refresh feature of the ADUM1200CRZ?
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 ADUM1200CRZ?
Common applications include size-critical multichannel isolation, SPI interface/data converter isolation, RS-232/RS-422/RS-485 transceiver isolation, and digital field bus isolation. - How does the ADUM1200CRZ handle pulse width distortion?
The ADUM1200CRZ has a pulse width distortion of less than 40 ns. - What is the operating temperature range of the ADUM1200CRZ?
The operating temperature range is from -40°C to 125°C.
