128-Tap, Nonvolatile, Linear-Taper Digital

Potentiometer in 2mm x 2mm µDFN Package

4

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TIMING CHARACTERISTICS (continued)

(See Figures 1, 2, 3, and 4).

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

NVM-Write Mode Pulse-Width

High

80

ns

Write NV Register Busy Time

14

ms

Power-Up Settling Time

(Note 8)

2

µs

wiper terminal is unloaded and measured with a high input-impedance voltmeter.

Note 3: The DNL and INL are measured with the potentiometer configured as a variable resistor. H is unconnected and L = GND.

For the +5V condition, the wiper terminal is driven with a source current of 200µA and for the +2.7V condition, the wiper ter-

minal is driven with a source current of 100µA.

Note 4: The wiper resistance is measured using the source currents given in Note 3.

0.5V). See Supply Current vs. Digital Input Voltage in the Typical Operating Characteristics.

Note 6: Wiper at midscale with a 10pF load, L = GND, an AC source is applied to H, and the output is measured as 3dB lower than

the DC W/H value in dB.

and the wiper terminal is unloaded and measured with a 10pF oscilloscope probe. See the Tap-to-Tap Switching Transient

in the Typical Operating Characteristics section.