Datasheet

EVAL-AD7262/AD7264
Rev. 0 | Page 7 of 20
SOCKETS
There are 24 SMB input sockets relevant to the operation of
the AD7262 or AD7264 on this evaluation board. All of these
sockets are used for applying an externally generated signal
to the evaluation board. When operating the board with the
EVAL-CED1Z, the only external sockets necessary are those
used to supply the differential signal to the analog inputs to the
ADC and the comparators (that is, VA−, VA+, VB−, VB+, CA+,
CA−, CB+, CB−, CC+, CC−, CD+, and CD−). All of the other
sockets are optional and if they are not used, their signals are
supplied by the EVAL-CED1Z. Most of these sockets are used
when operating the board as a standalone unit, as all the signals
required are supplied from external sources. The functions of
these sockets are outlined in Table 6.
Table 6. Socket Functions
Socket Function
VA−
Subminiature BNC socket for a unipolar differential input that is applied directly to the V
A
− pin of the
AD7262 or AD7264.
VA+
Subminiature BNC socket for a unipolar differential input that is applied directly to the V
A
+ pin of the
AD7262 or AD7264.
VB−
Subminiature BNC socket for a unipolar differential input that is applied directly to the V
B
− pin of the
AD7262 or AD7264.
VB+
Subminiature BNC socket for a unipolar differential input that is applied directly to the V
B
+ pin of the
AD7262 or AD7264.
VREFA
Subminiature BNC socket for an external reference voltage to be applied to V
REF
A or to access the internal
reference from the AD7262 and AD7264.
VREFB
Subminiature BNC socket for an external reference voltage to be applied to V
REF
B or to access the internal
reference from the AD7262 and AD7264.
DOUT-A Subminiature BNC socket for D
OUT
A output.
DOUT-B Subminiature BNC socket for D
OUT
B output.
CS
Subminiature BNC socket for an external CS
input.
SCK Subminiature BNC socket for an external SCLK input.
CA+ Subminiature BNC socket for C
A
+ input.
CA− Subminiature BNC socket for C
A
− input.
CB+ Subminiature BNC socket for C
B
+ input.
CB− Subminiature BNC socket for C
B
− input.
CC+ Subminiature BNC socket for C
C
+ input.
CC− Subminiature BNC socket for C
C
− input.
CD+ Subminiature BNC socket for C
D
+ input.
CD− Subminiature BNC socket for C
D
− input.
COUT_A Subminiature BNC socket for C
OUT
A output.
COUT_B Subminiature BNC socket for C
OUT
B output.
COUT_C Subminiature BNC socket for C
OUT
C output.
COUT_D Subminiature BNC socket for C
OUT
D output.
CA_CB_VCC Subminiature BNC socket for an external C
A
_C
B
_V
CC
input.
CC_CD_VCC Subminiature BNC socket for an external C
C
_C
D
_V
CC
input.