EVAL-AD7482CB Datasheet, PDF (6/20 Pages) Analog Devices – Evaluation Board for 3 MSPS, 12-Bit SAR ADC

EVAL-AD7482CB
EVALUATION BOARD INTERFACING
Interface to the evaluation board via a 96-way connector, J1.
J1 is used to connect the evaluation board to the EVAL-
CONTROL BRD2 or other system. The pinout for the J1
connector is shown in Figure 2 and its pin descriptions and
pin designators are shown in Table 3 and Table 4.
1
A
B
C
1
8
16
24
32
8
16
24
32
Figure 2. Pin Configuration for the 96-Way Connector, J1
Table 3.
Signal Description
FL0 Flag Zero. This output is connected to the CONVST pin
of the AD7482 via LK1.
IRQ2 Interrupt Request 2. This input is connected to the
BUSY output of the AD7482 through the inverter, U7.
RD
Read. An output connected to the RD pin of the
AD7482 via LK23.
WR Write. An output connected to the WR input of the
AD7482 via LK24.
CS
Chip Select. An output connected to the CS input pin
of the AD7482 via LK22.
D0 to Data Lines. These bidirectional data lines are connected
D14 to the data bus of the AD7482 through the buffer, U2.
DGND Digital Ground. These lines are connected to the
ground plane of the AD7482 evaluation board.
AGND Analog Ground. These lines are connected to the
ground plane of the AD7482 evaluation board.
DVDD
Digital +5 V Supply. These lines are connected to the
DVDD supply line on the AD7482 evaluation board via
LK16.
AVDD Analog +5 V Supply. These lines are connected to the
AVDD supply line on the AD7482 evaluation board via
LK19.
+12 V +12 V Supply. These lines are connected to the +12 V
supply line on the AD7482 evaluation board via LK20.
−12 V −12 V Supply. These lines are connected to the −12 V
supply line on the AD7482 evaluation board via LK21.
Table 4. 96-Way Connector Pin Functions¹
Pin No.
Row A
Row B
1
2
D0
3
D1
4
DGND
DGND
5
D2
6
D3
7
D4
8
DVDD Edge
DVDD Edge
9
RD
D5
10
D6
11
D7
12
DGND
DGND
13
D8
14
D9
15
D10
16
DGND
DGND
17
FL0
D11
18
D12
D13
19
20
DGND
DGND
21
AGND
AGND
22
AGND
AGND
23
AGND
AGND
24
AGND
AGND
25
AGND
AGND
26
AGND
AGND
27
AGND
28
AGND
29
AGND
AGND
30
−12 V
AGND
31
32
AVDD
AVDD
Row C
DGND
DVDD Edge
WR
CS
DGND
DGND
IRQ2
D14
DGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
+12 V
AVDD
1 _{The unused pins of the 96-way connector are not shown.}
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