AD2420(W)/AD2426(W)/AD2427(W)/AD2428(W)/AD2429(W)

Rev. B

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Page 27 of 38

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January 2020

29

VOUT2

PWR

None

Second Output of the On-Chip low Dropout Voltage Regulator. The voltage output on this pin

provides a regulated supply to the TRXVDD supply pins. External devices also can be powered

by this supply if the current consumption is within the specification. Decouple VOUT2 to VSS

with a 4.7 μF capacitor.

30

VIN

PWR

None

Operating Conditions section) for an on-chip low dropout voltage regulator.

31

VSS

PWR

None

Power Supply Pin for Return Currents. Connect the VSS pin to a low impedance local VSS ground

plane.

32

VOUT1

PWR

None

First Output of the On-Chip Low Dropout Voltage Regulator. The voltage output on this pin

provides a regulated supply to the DVDD and PLLVDD power supply pins. External devices can

be powered by this supply if the current consumption is within the specification. Decouple

VOUT1 to VSS with a 4.7 μF capacitor.

33

EPAD

PWR

None

Power Supply Pin for Return Currents. See other VSS pin description in this table. This pin is the

exposed pad on the bottom of the package and must be connected to GND.

Table 15. AD2420(W)/AD2426(W)/AD2427(W)/AD2428(W)/AD2429(W) Pin Function Descriptions (Continued)

Pin



No.

Pin Name

Type

Alternate



In this table, the Type is defined as follows: PWR = power/ground, A_IN = analog input, D_OUT = digital output, A_IO = analog input/output,

D_IO = digital input/output, N/A = not applicable.