Analog Voltage Divider (DFR0051)

Hi BullCreekAviationMus

Totally agree with that but a divider does not “generate” a voltage but merely translates an existing voltage down to a more manageable or suitable level.

That is the main criteria
A lower resistance load must be considered as I explained above but that can happen as long as the load remains static. The real problem is if the load resistance is unknown or varies as this will vary the division ratio.

If there is no other alternative is available a divider can be tolerated if a high resistance input interface is provided such as an OP amp configured as a unity gain voltage follower. This will provide the bit of current required by the load and will have a low source impedance (~75Ω) as seen by this load.

Cheers Bob

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