开关和多路复用器专区

问答 MAX14808

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MAX14808

dddx

on Aug 29, 2024

Category: Hardware

Product Number: MAX14808

请问MAX14808是否有上电时序的要求？能否VPPA和VNNA先上电，然后VCC、VDD、VEE再上电？

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MAX14808 hardware Analog Switches Multiplexers Medical Ultrasound Switches and Pulsers

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mashimaro

on Aug 29, 2024 2:22 AM
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开关相关的问题，请去开关和多路复用器专区提问 (+) 开关和多路复用器专区 - EngineerZone (analog.com)
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YYU3

on Aug 29, 2024 3:34 AM in reply to mashimaro
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不建议您先接入VPPA和VNNA信号，建议您先接入VCC、VDD、VEE的芯片供电后再接入外部高压信号。先接入外部信号可能会导致芯片损坏和工作不正常。
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dddx
on Aug 29, 2024 4:18 AM in reply to YYU3
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请问芯片烧毁的现象是涉及供电的VPPA，VNNA，OUT管脚烧毁发黑以及VPPA，VNNA，OUT管脚上方的封装破损吗？我们测试人员按照上述问题顺序测试，反复几次上电后芯片烧坏了。
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dddx
on Aug 29, 2024 4:18 AM in reply to YYU3
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请问芯片烧毁的现象是涉及供电的VPPA，VNNA，OUT管脚烧毁发黑以及VPPA，VNNA，OUT管脚上方的封装破损吗？我们测试人员按照上述问题顺序测试，反复几次上电后芯片烧坏了。
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