Datasheet

EVAL-AD5754R
Rev. 0 | Page 4 of 12
Table 4. Link Options
Link No. Function
LK1 This link selects the voltage reference source:
Position A selects the on-board REF192 as the voltage reference source.
Position B selects an external source via connector J2.
(If the AD5754R internal reference is to be used as the voltage reference source, do not insert LK1).
LK2 This link connects the V
OUT
A output of the AD5754R to the V
IN
0 input of the on-board ADC (AD7323):
When inserted, the voltage at the V
OUT
A pin can be read back to the PC.
When removed, the voltage at the V
OUT
A pin is disconnected from the on-board ADC input.
LK3 This link connects the V
OUT
B output of the AD5754R to the V
IN
1 input of the on-board ADC (AD7323):
When inserted, the voltage at the V
OUT
B pin can be read back to the PC.
When removed, the voltage at the V
OUT
B pin is disconnected from the on-board ADC input.
LK4 This link connects the V
OUT
C output of the AD5754R to the V
IN
2 input of the on-board ADC (AD7323):
When inserted, the voltage at the V
OUT
C pin can be read back to the PC.
When removed, the voltage at the V
OUT
C pin is disconnected from the on-board ADC input.
LK5 This link connects the V
OUT
D output of the AD5754R to the V
IN
3 input of the on-board ADC (AD7323):
When inserted, the voltage at the V
OUT
D pin can be read back to the PC.
When removed, the voltage at the V
OUT
D pin is disconnected from the on-board ADC input.
LK6 This link selects the 5 V power supply source for the digital circuitry:
Position A selects the USB port as the 5 V digital circuitry power supply source.
Position B selects J7 as the 5 V digital circuitry power supply source.
LK7 This link selects whether the AD5754R evaluation board is controlled by the PC via the USB port or by an external source via J8:
Position A selects the evaluation board to be controlled by the PC via the USB port.
Position B selects the evaluation board to be controlled by an external source via J8.
LK8 This link selects the digital supply voltage value for the AD5754R and the on-board ADC (AD7323):
Position A selects 5 V as the supply value.
Position B selects 3.3 V as the supply value.
LK9 This link selects the negative supply voltage:
Position A selects 0 V as the negative supply voltage (unipolar operation).
Position B selects the AV
SS
connection of J9 as the negative supply voltage (bipolar operation).
LK10 This link connects the voltage reference input of the on-board ADC to the selected voltage reference source.
LK11
This link sets the state of the LDAC
pin (LK7 must be in Position B):
When inserted, the LDAC
pin is tied to 0 V.
When removed, the LDAC
pin is pulled to DV
CC
through a 10 kΩ resistor.
LK12
This link sets the state of the CLR
pin (LK7 must be in Position B):
When inserted, the CLR
pin is tied to 0 V.
When removed, the CLR
pin is pulled to DV
CC
through a 10 kΩ resistor.
LK13
This link sets the state of the BIN/2sCOMP
pin (LK7 must be in Position B):
When inserted, the BIN/2sCOMP
pin is tied to 0 V.
When removed, the BIN/2sCOMP
pin is pulled to DV
CC
through a 10 kΩ resistor.