Datasheet

EVAL-AD7294
Rev. 0 | Page 6 of 24
SOCKETS
There are 22 SMB input/output sockets relevant to the
operation of the AD7294 on this evaluation board. All of these
sockets are used for applying an externally generated signal
to the evaluation board or for accessing an output signal from
the AD7294. When operating the board with the USB power
source, the only external sockets necessary are those used to
supply the input signals to the analog inputs of the ADC (that
is, V
IN
0, V
IN
1, V
IN
2, and V
IN
3), the current sensor input signals
(that is, RS1(+) and RS2(+)), and the temperature sensor input
signals (that is, D1+, D1−, D2+, and D2−).
The DAC outputs can be accessed via the V
OUT
A, V
OUT
B, V
OUT
C,
and V
OUT
D SMBs, and the current senor overrange outputs can
be accessed via the I
SENSE
1 and I
SENSE
2 SMBs. The functions of all
the SMB sockets on the AD7294 evaluation board are outlined
in Table 3.
Table 3. Socket Functions
Socket Function
RS1(+), RS2(+)
Subminiature bayonet nut connector (BNC)
sockets for the input signals that are applied
directly to the RS2(+)
V
IN
0, V
IN
1, V
IN
2, V
IN
3
Subminiature BNC sockets for the analog
input signals that are applied directly to the
V
IN
0, V
IN
1, V
IN
2, and V
IN
3 pins, respectively
D1+, D2+
Subminiature BNC sockets for the input
signals that are applied directly to the D1+,
and D2+ pins, respectively
D1−, D2−
Subminiature BNC sockets for the input
signals that are applied directly to the D1−,
and D2− pins, respectively
I
SENSE
1, I
SENSE
2
Subminiature BNC sockets for the I
SENSE
x
output signals that are generated by the
AD7294
V
OUT
A, V
OUT
B,
V
OUT
C, V
OUT
D
Subminiature BNC sockets for the V
OUT
x
output signals that are generated by the
AD7294
OFFSET IN A,
OFFSET IN B,
OFFSET IN C,
OFFSET IN D
Subminiature BNC sockets for the OFFSET IN x
input signals that are applied to the AD7294
REF
IN
DAC
Subminiature BNC sockets that enable an
external reference source to be supplied to
the DACs on the AD7294
REF
IN
ADC
Subminiature BNC sockets that enable an
external reference source to be supplied to
the ADC on the AD7294
CONNECTORS
There are two connectors (J2 and J3) on the EVAL-AD7294, as
outlined in Table 4 .
Table 4. Connector Functions
Connector Function
J2-1 External RS2(+) power connector
J2-2 External RS1(+) power connector
J3-1 External DV
DD
power connector
J3-2 DGND power connector
J3-3
External DAC OUTV+ AB and DAC OUTV+ CD
power connector
J3-4 AGNDx power connector
J3-5 External AV
DD
x power connector
J3-6 AGNDx power connector