Datasheet

EVAL-AD7328CB
Rev. 0 | Page 4 of 16
Link No. Function
LK25 This link option is used to select the source of the 12 V supply for the EVAL-AD7328CB.
When in Position A, the 12 V supply is sourced from the EVAL-CONTROL-BRD2 via the 96-way connector.
When in Position B, the 12 V supply is sourced externally via the J17 connector.
LK26 This link option is used to select the source of the −12 V supply for the EVAL-AD7328CB.
When in Position A, the −12 V supply is sourced from the EVAL-CONTROL-BRD2 via the 96-way connector.
When in Position B, the −12 V supply is sourced externally via the J17 connector.
LK27
This link option is used to select the configuration of the noninverting input to U5. The configuration of
this link depends on whether the board is being used in single-ended or differential mode.
For single-ended mode, this link should be inserted.
For true differential mode, this link should be removed.
LK28
This link option is used to select the configuration of the noninverting input to U9. The configuration of
this link depends on whether the board is being used in single-ended or differential mode.
For single-ended mode, this link should be inserted.
For true differential mode, this link should be removed.
LK29
This link option is used to select the configuration of the noninverting input to U7. The configuration of
this link depends on whether the board is being used in single-ended or differential mode.
For single-ended mode, this link should be inserted.
For true differential mode, this link should be removed.
LK30
This link option is used to select the configuration of the noninverting input to U11. The configuration of
this link depends on whether the board is being used in single-ended or differential mode.
For single-ended mode, this link should be inserted.
For true differential mode, this link should be removed.
Table 2. Initial Link Positions
Link No. Position Function
LK1 Out The AD780 supplies a 2.5 V reference to the AD7328.
LK2 A The AD780 supplies the reference to the AD7328.
LK3 A The V
CC
supply is taken from the EVAL-CONTROL-BRD2.
LK4 C The V
DRIVE
supply is taken from the V
CC
supply.
LK5 A
The
CS signal is taken from the EVAL-CONTROL-BRD2.
LK6 C The SCLK signal is taken from the EVAL-CONTROL-BRD2.
LK7 A The DIN signal is taken from the EVAL-CONTROL-BRD2.
LK8 A The DOUT signal is sent to the EVAL-CONTROL-BRD2.
LK9, LK11, LK13, LK15, LK17, LK19, LK21, LK23 Out No 51 V termination on the inputs.
LK10 A V
IN
0 SMB connected to input of AD797.
LK12, LK14, LK16, LK18, LK20, LK22, LK24 B Inputs to AD797 set to AGND.
LK25 A +12 V is supplied from the EVAL-CONTROL-BRD2.
LK26 A −12 V is supplied from the EVAL-CONTROL-BRD2.
LK27, LK28, LK29, LK30 Inserted −12 V is supplied from the EVAL-CONTROL-BRD2.