EVAL-AD7783EBZ Analog Devices Inc, EVAL-AD7783EBZ Datasheet - Page 4

• Manufacturer Part Number: EVAL-AD7783EBZ
• Description: EVALUATION BOARD
• Manufacturer: Analog Devices Inc

Specifications of EVAL-AD7783EBZ

• Number Of Adc's: 1
• Number Of Bits: 24
• Sampling Rate (per Second): 32k
• Data Interface: SPI™, QSPI™, MICROWIRE™, and DSP
• Inputs Per Adc: 1 Differential
• Input Range: ±2.56 V
• Voltage Supply Source: Single Supply
• Operating Temperature: -40°C ~ 85°C
• Utilized Ic / Part: AD7783
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Table 3: 36-Way Connector Pin Description
1
2
3
4
5
6-8
9
10
11-12
13
14-18
19-30
31-36
SOCKETS
There are nine sockets relevant to the operation of the AD7783 on this evaluation board. The functions of these
sockets are outlined in Table 4.
EVAL-AD7783-EB
7 D O U T
8 DV
9 N C
Note
1
An explanation of the AD7783 functions mentioned here is given in Table 3 as part of the P2 pin descriptions.
DD
N C
N C
N C
SCLK
N C
DV
N C
D O U T
N C
D G N D
N C
DD
Serial Data Output. This is a buffered version of the signal on the AD7783 DOUT pin.
Digital Supply Voltage. If link LK12 is open, the voltage applied to this pin will supply the DV
for the digital AND gates.
Not Connected.
18
36
No Connect. This pin is not connected on the evaluation board.
No Connect. This pin is not connected on the evaluation board.
No Connect. This pin is not connected on the evaluation board.
Chip Select/Powerdown. The signal on this pin is buffered before being applied to the
powerdown mode with SCLK and DOUT three-stated.
Serial Clock. The signal on this pin is buffered before being applied to the SCLK pin
of the AD7783. An external serial clock is applied to this input to read serial data from
the AD7783. This serial clock can be continuous with all data transmitted in a
continuous train of pulses. Alternatively, it can be non-continuous with the information
being transmitted from the AD7783 in smaller batches of data.
No Connect. These pins are not connected on the evaluation board.
Digital Supply Voltage. This provides the supply voltage for the digital chip U4, which
buffers the SCLK and
Logic output. This is a buffered version of the RDY signal from the AD7783's DOUT/
register. The
output word. If data is not read
to the user that a read operation should not be initiated.
No Connect. These pins are not connected on the evaluation board.
Serial Data Output. This is a buffered version of the DOUT signal from the AD7783's
DOUT/
AD7783.
No Connect. These pins are not connected on the evaluation board.
Ground reference point for digital circuitry. Connects to the GND plane on the
evaluation board.
No Connect. These pins are not connected on the evaluation board.
pin of the AD7783.
is low, the AD7783 begins converting. When
pin. A logic low on this output indicates that the ADC has valid data in its data
Fig. 3: 36-way Centronics (P2) Pin Configuration
pin, the serial data being obtained from the output shift register on the
pin will return high upon completion of a read operation of a full
signals between the AD7783 and P2 when link LK12 is open.
is an active low Logic Input used to select the AD7783. When
- 4 -
will return high prior to the next update indicating
is high, the AD7783 is placed in
19
1
DD
Rev. O