• Problem of ADUM1411-Low Level rise to >1V when 3 ADUM1411 was connected to MCU

    I came across a problem when testing ADUM1411.

    Every ADUM1411 connect to MCU will make the low level voltage in Vin Din of MCU (connect to VIC pin of ADUM1411) rise (The high level voltage maintain 5V). 

    When I connect 1 / 2 / 3 ADUM1411 to MCU, the low…

  • ADuM1411隔离SPI接口问题

    使用ADuM1411隔离CS5460A的SPI接口，无数据返回，直接连通数据正常，请问使用ADuM1411需要对SPI的接口时序进行调整吗？还是有其他的注意事项？

  • ADuM1411 SPI问题

    我们将ADUM1411BRWZ用于SPI通信。数据手册指定的最大数据速率为10MHZ，但在应用中，我们发现Sclk的最大频率是1.125MHZ。原因可能是什么？

  • RE: ADUM1411 SPI出现自激振荡

    请发送一下上电时，ADUM1411供电以及MCU_SCLK和ADC_SCLK的波形。

  • RE: ADI New OOK Digital Isolator Cross Reference Table

    Hi Jacky, 

    I created a spreadsheet showing all of our legacy isolators and the closest next generation device (see attachment). In many cases there is a direct pin to pin replacement, but some have different pin-outs or functionality.

    Is this what you…

    • RefDoc_StandardDataDigitalIsolatorCrossesJan17.xlsx

  • Comment on ADuM1411 SPI问题

    他的速度应该是没错的，手册中说的是10Mbps（1.25MHZ），不应该是传播延迟的问题！

  • Comment on ADuM1411 SPI问题

    在隔离SPI应用中，sclk速度受限于器件的传播延迟，而不是数据手册所述的最大数据速率。一般而言，最大SCLK数据速率由器件的两个传播延迟决定。请观看以下视频：

    http://videos.analog.com/video/1277944324001/SPIiCoupler/

  • ADUM1411隔离问题求助？

    请问各位一个问题，我在应用中遇到这种怪现象：用ADUM1411来做ADC与MCU之间的隔离。ADC前瑞模拟信号通过LM324放大再输入ADC  TLV2542（TI的12位ADC），输出信号经过1411隔离后给单片机，通过一个电源芯片输出两组独立的电源，给1411两侧供电，都是5V，1411的GND1和ADC还有运放的地相连，VDD1侧电源也与ADC和运放相连。问题是1411会被烧坏，而且1411对前端信号干扰很大，不加1411时，模拟采集完全正常，加了1411后模拟信号跳变很厉害，完全无法通信。

    …

  • RE: IEC60950-1 Certification and Test Report for ADuM1411

    This question has been assumed as answered either offline via email or with a multi-part answer. This question has now been closed out. If you have an inquiry related to this topic please post a new question in the applicable product forum.

    Thank you,
    …

  • RE: EVAL-ADuMQSEBZ as a RS485 Isolation Interface?

    Hi Juan,

    Yes, you can use the ADuM5000 and ADuM1411 with your RS-485 transceiver to achieve an isolated RS-485 node.

    Can you provide me with the part number for your RS-485 transceiver?

    I can draw you a concept sketch to show you how to connect up…