Datasheet

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TP1
Q1
DAC Module
AGND
DGND
A
6.5-Digit
Current Meter
+
-
+2.5 V 0.5 V
XTR115
V+
B
E
Iin
Iret
Q2
U4A
TP2
TP8
W9
W6
W8
125 W
+5 VA
312.5 kW
12.5 kW
+5 VA
Digitally Programmable 4-mA - 20-mA Current Source
V
REF
I
OUT
V
REF
H
V
REF
L
V
CC
V
SS
V
OUT
V
OUT
SENSE
7.6 Jumper Setting
EVM Operation
Table 7. Digitally Programmable Current Source Configuration
Reference Jumper Position Function
Q1 U4A
W2 OPEN OPEN Disconnect V
OUT
from J4 header
W6 1-2 2-3 Routes V
OUT
to selected device for current operation
W7 2-3 2-3 Routes REF1 to source V
REF
H of DAC7631
W8 OPEN CLOSED Configures the DAC7631 output for proper operation
W9 CLOSED OPEN Configures the DAC7631 output for proper operation
W10 1-2 1-2 Routes REF1 to source V
REF
H of DAC7631
W11 2-3 2-3 Routes –REFin to source V
REF
L of DAC7631
Figure 10. Digitally Programmable Current Source
Table 8 shows the function of each specific jumper setting of the EVM.
SLAU148 – January 2005 13DAC7631EVM