EVAL-AD7714-3EBZ Analog Devices Inc, EVAL-AD7714-3EBZ Datasheet - Page 3

• Manufacturer Part Number: EVAL-AD7714-3EBZ
• Description: BOARD EVALUATION FOR AD7714
• Manufacturer: Analog Devices Inc

Specifications of EVAL-AD7714-3EBZ

• Number Of Adc's: 1
• Number Of Bits: 24
• Sampling Rate (per Second): 1k
• Data Interface: Serial
• Inputs Per Adc: 3 Differential
• Input Range: 0 ~ 3.3 V
• Power (typ) @ Conditions: 3.65mW @ 3.3 V
• Voltage Supply Source: Analog and Digital
• Operating Temperature: -40°C ~ 85°C
• Utilized Ic / Part: AD7714-3
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Setup Conditions
Table I shows the position in which all the links are set when the
evaluation board is sent out.
Link No.
LK1
LK2
LK3
LK4
LK5
LK6
LK7
LK8-LK13 IN
EVALUATION BOARD INTERFACING
Interfacing to the evaluation board is either via a 36-way
Centronics connector,SKT11, or a 9-way D-Type connector,
SKT1. The pinout for the SKT1 connector is given in Figure 1
and its corresponding pin designations are given in Table II.
The pinout for this SKT11 connector is shown in Figure 2 and
its pin designations are given in Table III. The evaluation board
should be powered up before a cable is connected to either of
the connectors.
SKT11 is used to connect the evaluation board to the printer
port (parallel port) of a PC. Connection between the two is
direct via a standard parallel printer port cable. SKT1 is used to
connect the evaluation board to any other system.
REV. A
Position Function.
B
A
B
A
A
A
Table I. Initial Link Positions
Both links in position B to select the
on-board crystal oscillator as the master
clock for the board.
Connects STANDBY high and thus
configures the part for normal
operation.
The on-chip buffer on the AD7714 is
shorted out.
Connects POL pin high such that the
first transition of the serial clock in a
data transfer is from a high to a low.
REF IN(-) connected directly to
AGND.
REF IN(+) connected to the output of
the on-board AD589 reference.
No link in place.
Connects analog inputs from the input
sockets directly to the respective analog
input pins of the AD7714.
–3–
1
2
3
4
5
6
7
8
9
NOTE
1
part of the SKT11 pin designations description.
An explanation of the AD7714 functions mentioned here is given in Table III as
SCLK
DRDY
CS
RESET
DIN
DGND
DOUT
DV
SYNC
DD
Table II. SKT1 Pin Designations
Figure 2. SKT1 Pin Configuration
Serial Clock. The signal on this pin is buffered
before being applied to the SCLK pin of the
AD7714.
Logic Output. This is a buffered version of the
signal on the AD7714's DRDY pin.
Chip Select. The signal on this pin is buffered
before being applied to the CS pin of the
AD7714.
Reset Input. The signal on this pin is buffered
before being applied to the RESET pin of the
AD7714.
Serial Data Input. Data applied to this pin is
buffered before being applied to the AD7714's
DIN pin.
Ground reference point for digital circuitry.
Connects to the DGND plane on the evaluation
board.
Serial Data Output. This is a buffered version of
the signal on the AD7714's DOUT pin.
Digital Supply Voltage. If no DV
applied to the board's DV
then the voltage applied to this pin of the con-
nector will supply the DV
board.
Logic Input. The signal on this pin is buffered
before being applied to the SYNC pin of the
AD7714.
1
6
2
7
EVAL-AD7714-3EB
3
8
4
DD
DD
9
for the evaluation
input terminal,
5
1
DD
voltage is