AD5121: FAQ

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  • AD5121: Maximum Bandwidth

    Q How do I calculate the maximum bandwidth? A As a first order model, the digiPOT performs as a basic RC filter. The capacitance is added by the W pin capacitance and the resistance should be calculated…
  • AD5121: Maximum Current Density

    Q What does maximum current density mean? A The maximum current density is the maximum current allowed through the digipot. In potentiometer mode, this isn’t an issue as the resistor is quite high…
  • AD5121: VDD and VLOGIC

    Q How different can Vdd and Vlogic be? A Vdd is used as a reference signal for ESD protection. No other supply voltage can be higher than VDD so Vlogic maximum voltage is limited to Vdd.

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