I need to serially control 8 switches, every 7ms I need to open one channel for each switch and closed it 100 us after.
For a clock of 30MHz which is the expected power consumption? How to minimize it?
For a clock speed of 30Mhz the max current consumption across the full temperature range of -40 C to +125 C is
specified in the data sheet as 0.35 mA.
The easiest way to reduce this is to reduce the clock speed however this may not be possible for you.
This part also contains a VL pin. This pin is the power supply for the digital logic. VL has an input range from 2.7 to 5.5 V. keeping this at 2.7 V will help to minimize the power consumption.
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