Overview
The ADuM1200CR is a dual-channel digital isolator produced by Analog Devices Inc., utilizing the company's iCoupler technology. This device is designed to provide high-speed, low-latency isolation for digital signals, making it suitable for a variety of applications that require reliable and precise signal transmission across different voltage domains.
The ADuM1200CR supports bidirectional communication, voltage translation between 3V and 5V levels, and operates at high temperatures up to 125°C. It is also qualified for automotive applications, ensuring robust performance in demanding environments.
Key Specifications
| Parameter | Min | Test Conditions | |||
|---|---|---|---|---|---|
| Input Supply Current per Channel (Quiescent) | 0.26 | 0.35 | 0.50 | mA | 3 V/5 V Operation |
| Output Supply Current per Channel (Quiescent) | 0.11 | 0.20 | 0.25 | mA | 3 V/5 V Operation |
| Maximum Data Rate | 25 Mbps | CL = 15 pF, CMOS signal levels | |||
| Propagation Delay (tPHL, tPLH) | 20 | 45 ns | CL = 15 pF, CMOS signal levels | ||
| Pulse Width Distortion (PWD) | 3 ns | CL = 15 pF, CMOS signal levels | |||
| Common-Mode Transient Immunity (CMTI) | 25 | 35 kV/μs | VIx = VDD1 or VDD2, VCM = 1000 V, transient magnitude = 800 V | ||
| Output Rise/Fall Time (10% to 90%) | 2.5 ns | CL = 15 pF, CMOS signal levels | |||
| Isolation Voltage | 2500 Vrms | For 1 minute per UL 1577 |
Key Features
- Bidirectional Communication: Supports data transmission in both directions across the isolation barrier.
- Voltage Translation: Enables 3V to 5V level translation, facilitating communication between different voltage domains.
- High-Speed Operation: Maximum data rate of up to 25 Mbps.
- Precise Timing Characteristics: Low pulse width distortion (<3 ns) and tight channel-to-channel matching (<3 ns).
- High Common-Mode Transient Immunity: >25 kV/μs, ensuring robust performance against transient voltages.
- Automotive Grade: Qualified for operation at temperatures up to 125°C, suitable for automotive applications.
- Safety and Regulatory Approvals: UL recognition, CSA Component Acceptance Notice, and VDE Certificate of Conformity.
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 signal integrity.
- RS-232/RS-422/RS-485 Transceiver Isolation: Suitable for isolating serial communication interfaces.
- Digital Field Bus Isolation: Used in industrial field bus applications for reliable signal transmission.
- Hybrid Electric Vehicles, Battery Monitor, and Motor Drive: Qualified for use in automotive systems.
Q & A
- What is the maximum data rate of the ADuM1200CR?
The maximum data rate of the ADuM1200CR is up to 25 Mbps.
- What is the isolation voltage of the ADuM1200CR?
The isolation voltage of the ADuM1200CR is 2500 Vrms for 1 minute per UL 1577.
- Does the ADuM1200CR support bidirectional communication?
Yes, the ADuM1200CR supports bidirectional communication across the isolation barrier.
- What is the common-mode transient immunity (CMTI) of the ADuM1200CR?
The CMTI of the ADuM1200CR is >25 kV/μs.
- Is the ADuM1200CR qualified for automotive applications?
Yes, the ADuM1200CR is qualified for automotive applications and can operate at temperatures up to 125°C.
- What is the propagation delay of the ADuM1200CR?
The propagation delay (tPHL, tPLH) of the ADuM1200CR is between 20 ns and 45 ns.
- Does the ADuM1200CR support voltage translation?
Yes, the ADuM1200CR supports 3V to 5V level translation.
- What is the output rise/fall time of the ADuM1200CR?
The output rise/fall time (10% to 90%) of the ADuM1200CR is 2.5 ns.
- What are the safety and regulatory approvals for the ADuM1200CR?
The ADuM1200CR has UL recognition, CSA Component Acceptance Notice, and VDE Certificate of Conformity.
- What are some typical applications of the ADuM1200CR?
Typical applications include size-critical multichannel isolation, SPI interface/data converter isolation, RS-232/RS-422/RS-485 transceiver isolation, and digital field bus isolation.
