Replace a potentiometer by a digital pot

[Acetronics2]

Bonjour Roger,

Excerpt of the datasheet ...

<< H - High-Terminal Potentiometer. This is the high terminal of the potentiometer. It is not required that
this terminal be connected to a potential greater than the L-terminal. Voltage applied to the H-terminal
cannot exceed the power-supply voltage, VCC, or go below ground.

L - Low-Terminal Potentiometer. This is the low terminal of the potentiometer. It is not required that this
terminal be connected to a potential less than the H-terminal. Voltage applied to the L-terminal cannot
exceed the power-supply voltage, VCC, or go below ground.

W - Wiper of the Potentiometer. This pin is the wiper of the potentiometer. Its position on the resistor
array is controlled by the three-terminal control port. Voltage applied to the wiper cannot exceed the
power-supply voltage, VCC, or go below ground >>

as the max DS1804 supply voltage is ....


Bouhou ,snifffff ... goodbye precious chip ! ... if you insist too much !!!

Try the AD 7376 ...

Alain