Jumper Setting Reference
3-6
3.3
Jumper Setting Reference
The illustrations in Table 3 - 6 shows the function of each jumper on the
DAC8541EVM.
Table 3 - 6. Jumper Setting Function
Reference
Jumper Setting
Function
W1
1
3
V
REF(L)
tied to AGND
W1
1
3
Enables V
REF(L)
to be supplied by an external source of reference voltage
through TP1
W2
1
3
Enables the onboard adjustable reference to supply voltage for V
REF(H)
W2
1
3
Enables V
REF(H)
to be supplied by an external source of reference voltage
through TP2
W3
1
3
Negative supply rail of op amp, U2, is - 15 V for bipolar application
W3
1
3
Negative supply rail of op amp, U2, is tied to AGND for unipolar application
W4
1
3
Positive supply rail of op amp, U2, is 15 V.
W4
1
3
Positive supply rail of op amp, U2, is V
CC
.
2
6
4
1
5
3
Routes the raw output of the DAC8531 to J4 - 2 and J5 output terminals
W5
2
6
4
1
5
3
Routes the output of U2 to J4 - 2 and 51 output terminals. Used for unipolar
and bipolar modes of operation.
2
6
4
1
5
3
Routes the output of U2 to J4- 2 and J5 output terminals. Used for capacitive
load driving.
Disconnects V
REF(H)
from the negative input terminal of U2
W6
Allows V
REF(H)
to be routed to the negative input terminal of U2 for bipolar
operation
W7
Disconnects the negative terminal of U2 to AGND and disables 2
×
gain
W7
Configures U2 for a 2
×
gain output in unipolar mode
W8
Separate AGND and DGND from EVM board
W8
Connect AGND and DGND of EVM board
Legend:
Indicates the corresponding pins that are shorted or closed.