• About the power supply sequence of AD7656A-1

    Hello

    I have a question about POWER SUPPLY SEQUENCING on page 6 of the AD7656A-1 data sheet.

    ① How much is the difference in input time between VDD and VSS acceptable?
    ② Does "VDD must power up before VSS." Mean that the voltage should be applied to the…

  • RE: Input Resistance of AD7656A-1

    Hi,

    1. Max input resistance is around 12 MΩ.

    2. yes

    Regards,

    Andrei

  • RE: AD7656A Absolute max

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  • AD7656A和AD7656的区别

    问一下,这两款芯片主要有哪些区别呢?

  • RE: AD7656a-1 NOT Working

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  • RE: AD7656A return only two values

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  • AD7656 vs AD7656A-1 pin-for-pin & Software compatible?

    Hi - hope you can help.

       Could you tell me AD7656 vs AD7656A-1 - are these devices pin-for-pin & Software compatible?

    If not, how do they differ?

    Many Thanks,

    Sam

  • AD7656A-1的并行采集思路是这样吗?

    首先把/CS和/RD通过MSP430F149单片机的I/O口置为低电平;

    CONVST A,CONVST B,CONVST C通过IO口置为低电平;

    适当延时;

    CONVST A,CONVST B,CONVST C通过IO口置为高电平;

    判忙;

    读P5IN作为高八位;读P4IN作为低八位;

    判忙;

    读P5IN作为高八位;读P4IN作为低八位;

    判忙;

    读P5IN作为高八位;读P4IN作为低八位;

    判忙;

    读P5IN作为高八位;读P4IN作为低八位;

    判忙;

    读P5IN作为高八位…