EVAL-AD7903SDZ Datasheet, PDF (10/32 Pages) Analog Devices – EVAL-AD7903SDZ User Guide UG-609

UG-609
LINK CONFIGURATION OPTIONS
Care should be taken before applying power and signals to the
evaluation board to ensure that all link positions are as required
by the operating mode. There are two modes in which to operate
the evaluation board. The evaluation board can be operated in
SDP controlled mode to be used with the SDP board, or the
evaluation board can be used in standalone mode.
EVAL-AD7903SDZ User Guide
When operating in SDP controlled mode, ensure that VIO is
3.3 V. Operating with a VIO greater than 3.3 V in SDP controlled
mode may damage the SDP board.
The Default Position column of Table 3 shows the default
positions in which the links are set when the evaluation board is
packaged. When the board is shipped, it is assumed that you are
going to operate the evaluation board with the SDP board (SDP
controlled mode).
Table 3. Solder Links—Factory Default Settings
Link
Setting
Function
SL1
A
+VS
SL2
A
−VS
SL3
A
−VS
SL4
A
+VS
SL5
A
Analog input
SL6
A
Analog input
LK3
A
V_SDP
LK4
A
VREF
LK5
A
VDD for ADC
LK6
A
U12 output connects to
U14 input
LK7
A
U17 output connects to
U16 input
LK8
A
ADC2 input
LK9
A
ADC2 input
LK10
A
U17 input
LK11
A
U17 input
LK12
A
U16 input
Comment
Change to B if using bench supplies.
Change to B if using bench supplies.
Change to B if using bench supplies.
Change to B if using bench supplies.
Do not alter.
Do not alter.
Change to B if using bench supplies.
Change to B if using bench supplies.
Change to B if using bench supplies.
Change to B if U14 inverting input needs to be connected to ground.
Change to B if U16 inverting input needs to be connected to ground.
Change to B if using ADC1 input.
Change to B if using ADC1 input.
Change to B if U17 needs to be bypassed.
Change to B if U17 needs to be bypassed.
Change to B if U16 needs to be bypassed.
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