stm32L051 Comparator input impedance

[mailbox]

Posted on March 23, 2016 at 15:11

Hello,

I'd like to monitor battery voltage (V~8volts) using comparator and voltage devider with two resistors (1-10M). Coud you please specify analog comparator input impedance, so i can select appropriate resistor value. I'd like to minimize ground current throught divider. Thanks! #stm32l1 #comparator

[Radosław]

Posted on March 23, 2016 at 16:30

Whit succes i use 5M impadance devider for comparator. Check in datasheet input leakage current.

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Posted on March 24, 2016 at 10:13

Thank you for reply, 5M is ok