EVAL-AD7482CB_15 Datasheet, PDF (7/20 Pages) Analog Devices – Evaluation Board for 3 MSPS, 12-Bit SAR ADC

SOCKETS
There are eight input sockets relevant to the operation of the
AD7482 on this evaluation board. The functions of these
sockets are outlined in Table 5.
Table 5. Socket Functions
Socket Description
J2
Subminiature BNC socket for bipolar input signals
which are biased up by the on-board op amps and into
VIN.
J3
Subminiature BNC socket for unipolar input signals
which are connected directly to VIN.
J4
Subminiature BNC socket for an external reference.
J9
Subminiature BNC socket for an external CONVST signal.
J10
Subminiature BNC socket for an external offset voltage,
which are used to bias up the signal applied at J2.
J11
Subminiature BNC socket for an external CS signal.
J12
Subminiature BNC socket for an external RD signal.
J13
Subminiature BNC socket for an external WR signal.
CONNECTORS
There are five connectors on the AD7482 evaluation board
outlined in Table 6.
Table 6. Connector Functions
Socket Function
J1
96-way connector for parallel interface and power
supply connections.
J5
External VDRIVE connector.
J6
External AVDD and AGND connector.
J7
External DVDD and DGND connector.
J8
External +12 V, −12 V, and AGND power connector.
EVAL-AD7482CB
OPERATING WITH THE EVAL-CONTROL BRD2
The evaluation board can be operated in a standalone mode or
operated in conjunction with the EVAL-CONTROL BRD2. The
EVAL-CONTROL BRD2 is available from Analog Devices under
the order entry EVAL-CONTROL BRD2. When operated with
this control board, all supplies and control signals to operate the
AD7482 are provided by the EVAL-CONTROL BRD2. Software
to communicate with the control board and the AD7482 is
provided with the AD7482 evaluation board package. This
EVAL-CONTROL BRD2 also operates with all Analog Devices
evaluation boards that end with the letters CB in their title.
The 96-way connector on the EVAL-AD7482CB plugs directly
into the 96-way connector on the EVAL-CONTROL BRD2.
The EVAL-CONTROL BRD2 provides all the supplies for the
evaluation board. It is powered from a 12 V ac transformer.
Suitable transformers are available from Analog Devices as
an accessory under the following part numbers:
• EVAL-110VAC-US (For use in the US or Japan)
• EVAL-220VAC-UK (For use in the UK)
• EVAL-220VAC-EU (For use in Europe)
These transformers are also available from other suppliers
including Digi-Key Corp. (US) and Campbell Collins, Ltd. (UK).
Connection between the EVAL-CONTROL BRD2 and the
parallel port of a PC is via a standard Centronics printer port
cable, which is provided as part of the EVAL-CONTROL BRD2
package. Refer to the manual that accompanies the EVAL-
CONTROL BRD2 for more details.
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