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EVAL-AD7405FMCZ Datasheet, PDF (9/20 Pages) Analog Devices – Full featured evaluation board
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EVAL-AD7405FMCZ User Guide
LINK CONFIGURATION OPTIONS
There are multiple link options that must be set correctly to
select the appropriate operating setup before you begin using
the EVAL-AD7405FMCZ evaluation board. The functions of
these options are outlined in Table 2.
SETUP CONDITIONS
Take care 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-H1 controlled mode to be used with the EVAL-SDP-CH1Z
board, or the evaluation board can be used in standalone mode.
UG-690
The default position column of Table 2 shows the default
positions in which the links are set when the evaluation board is
packaged. When the board is shipped, it is set up to operate in
SDP-H1 controlled mode, with the power supplied from the
EVAL-SDP-CH1Z board and the analog supply rail (VDD1) being
supplied via the on-board isoPower® ADuM6000 dc-to-dc
converter.
Table 2. Link Options
Category
Default
Link Position Function
Power Supplies LK1 A
This link selects the AD7405 VDD1 supply source. Remove LK5 if using either Position A or Position B.
Position A: VDD1 is supplied from the ADuM6000 on-board device.
Position B: VDD1 is supplied externally via Connector J3.
LK5 Removed When LK5 is inserted, VDD1 is supplied via a step-down dc-to-dc regulator via J4. Remove LK5 if VDD1 is
supplied via LK1. Remove LK1 if VDD1 is supplied via LK5.
LK2 A
This link selects the AD7405 VDD2 supply source.
Position A: VDD2 is supplied from the EVAL-SDP-CH1Z board.
Position B: VDD2 is supplied from the on-board 5 V regulator.
Position C: VDD2 is supplied externally via Connector J5.
Analog Input LK7 Removed When LK7 is inserted, VIN+ is shorted to ground. Remove LK7 if a signal is applied to AIN+.
LK8 Inserted When LK8 is inserted, VIN− is shorted to ground. Remove LK8 if a signal is applied to AIN−.
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