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ManualsBrandsANALOG DEVICES ManualsDev KitsPCB design board
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EVAL-AD5422
Rev. 0 | Page 5 of 12
Link No. Function
LK15 This link selects the voltage reference source.
Position A selects the internal voltage reference of the AD5422 as the voltage reference source.
Position B selects an external source that can be applied at Connector J3.
Position C selects the on-board ADR435 as the voltage reference source.
LK16 This link selects the negative power supply source for U6.
Position A selects the AV
SS
input as the negative power supply source. (Use only if the power supply applied to AV
SS
input is
less (in magnitude) than āˆ’16.5 V.)
Position B selects the Vāˆ’ input as the negative power supply source. (Use only if the power supply applied to AV
SS
input is
greater (in magnitude) than āˆ’16.5 V.)
LK17 This link connects the DV
CC
pin of the AD5422 to the on-board digital power supply.
When this link is inserted, the DV
CC
pin of the AD5422 is connected to the on-board digital power supply. (LK3 must be
inserted to disable the AD5422 internal digital power supply.)
When this link is removed, the DV
CC
pin of the AD5422 is disconnected from the on-board digital power supply. (LK3 should
be removed to enable the AD5422 internal digital power supply.)
LK18
This link connects the AV
DD
pin of the AD5422 to the power supply applied at the AV
DD
input connector, J2. (LK18 must be
inserted for operation of the AD5422.)