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Thread: Teensy 3.6 differencial max input voltages

  1. #1
    Junior Member
    Join Date
    Feb 2020
    Posts
    2

    Teensy 3.6 differencial max input voltages

    Hello.

    I'm beginner with teensy boards. Right now I'm doing a school project and I will use teensy3.6 board to measure eletrical power quality.

    My main question is to know what are the max input voltage limits if I use ADC differencial ports to acquire signals.

    Many thanks.

  2. #2
    Senior Member+
    Join Date
    Jul 2013
    Posts
    284
    The maximum is 3.3 V, it doesn't matter if you use the differential or single-ended mode, the limit is the same.

  3. #3
    Junior Member
    Join Date
    Feb 2020
    Posts
    2
    Many thanks. Will be nice if was +/- 3.3V.

  4. #4
    Differential input voltage range is VREFL to 31/32 * VREFH. (table 31) The voltage limits for each pin are of course -0.3V to Vdd+0.3V.

    Note that while the voltage with respect to ground is always positive, the differential voltage can be negative.

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