Analog Devices AD7265 Evaluation Board EVAL-AD7265EDZ EVAL-AD7265EDZ Scheda Tecnica
Codici prodotto
EVAL-AD7265EDZ
EVAL-AD7265/AD7266
Rev. 0 | Page 11 of 24
SOCKETS
There are 25 SMB input/output sockets relevant to the operation of
the AD7265/AD7266 on this evaluation board. All of these sockets
are used for applying an externally generated signal to the evalua-
tion board or for accessing an output signal from the AD7265/
AD7266. When operating the board with the EVAL-CED1Z
board, the only external sockets necessary are those used to
supply the analog input signals to the ADC (that is, V
the AD7265/AD7266 on this evaluation board. All of these sockets
are used for applying an externally generated signal to the evalua-
tion board or for accessing an output signal from the AD7265/
AD7266. When operating the board with the EVAL-CED1Z
board, the only external sockets necessary are those used to
supply the analog input signals to the ADC (that is, V
A1
to V
A6
and V
B1
to V
B6
). 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 because all the signals required are supplied
from external sources. The functions of these sockets are
outlined in Table 8.
Most of these sockets are used when operating the board as a
standalone unit because all the signals required are supplied
from external sources. The functions of these sockets are
outlined in Table 8.
CONNECTORS
There are four connectors on the EVAL-AD7265/AD7266 as
outlined in Table 7.
outlined in Table 7.
Table 7. Connector Functions
Connector Function
J1
J1
96-way connector for the digital interface and
power supply connections
power supply connections
J2
External V
DD
power connector
J3
External V
DRIVE
power connector
J30
External +12 V, −12 V and AGND power connector
Table 8. Socket Functions
Reference
Designator
Designator
Socket
Function
J5
EXT COM2
Subminiature BNC socket for an external common-mode voltage to be applied to U6.
J6
A0
Subminiature BNC socket for an external A0 logic level.
J7
A1
Subminiature BNC socket for an external A1 logic level.
J8
A2
Subminiature BNC socket for an external A2 logic level.
J9
CS
Subminiature BNC socket for an external
CS signal.
J10
SCLK
Subminiature BNC socket for an external SCLK input.
J11
DOUTA
Subminiature BNC socket for the D
OUT
A output.
J12
DOUTB
Subminiature BNC socket for D
OUT
B output.
J13
SVIN1
Subminiature BNC socket for a unipolar signal that is buffered by U3-A and applied to the ADC.
J14
SVIN2
Subminiature BNC socket for a unipolar signal that is buffered by U3-B and applied to the ADC.
J15
SVIN3
Subminiature BNC socket for a unipolar signal that is buffered by U4-A and applied to the ADC.
J16
SVIN4
Subminiature BNC socket for a unipolar signal that is buffered by U4-B and applied to the ADC.
J17
V1 DIFF
Subminiature BNC socket for a bipolar or unipolar single-ended input that is applied to the single-ended-
to-differential conversion circuit (U5-B).
to-differential conversion circuit (U5-B).
J18
EXT COM1
Subminiature BNC socket for an external common-mode voltage to be applied to U6.
J19
V2 DIFF
Subminiature BNC socket for a bipolar or unipolar single-ended input that is applied to the single-ended-
to-differential conversion circuit (U6-B).
to-differential conversion circuit (U6-B).
J20
V3 DIFF
Subminiature BNC socket for a bipolar or unipolar single-ended input that is applied to the single-ended
to-differential conversion circuit (U7-B).
to-differential conversion circuit (U7-B).
J21
EXT COM3
Subminiature BNC socket for an external common-mode voltage to be applied to U7.
J22
V4 DIFF
Subminiature BNC socket for a bipolar or unipolar single-ended input that is applied to the single-ended
to-differential conversion circuit (U8-B).
to-differential conversion circuit (U8-B).
J23
EXT COM4
Subminiature BNC socket for an external common-mode voltage applied to U8.
J24
DCAPA
Subminiature BNC socket for an external reference voltage to be applied to D
CAP
A or to access the internal
reference from the AD7265/AD7266.
J25
DACPB
Subminiature BNC socket for an external reference voltage to be applied to D
CAP
B or to access the internal
reference from the AD7265/AD7266.
J26
VIN A
Subminiature BNC socket for a bipolar single-ended input to be applied to Bias-Up Circuit A.
J27
VIN B
Subminiature BNC socket for a bipolar single-ended input to be applied to Bias-Up Circuit B.
J28
VBIASED-A
Output from Bias-Up Circuit A, which can be applied to SVINx for single-ended mode of operation.
J29
VBIASED-B
Output from Bias-Up Circuit B, which can be applied to SVINx for single-ended mode of operation.