UG-1124
EVAL-AD4111SDZ
User Guide
Rev. A | Page 6 of 26
SERIAL INTERFACE
The EVAL-AD4111SDZ connects via the serial peripheral
interface (SPI) to the Blackfin®
ADSP-BF527
on the
SDP-B
board. There are four primary signals: CS, SCLK, DIN (all
inputs), and DOUT/RDY (output from the ADC).
The EVAL-AD4111SDZ can be connected to the
EVAL-
ADuCM3029 EZ-KIT
in the same way. Connecting the
evaluation board to the
EVAL-ADuCM3029 EZ-KIT
allows the
user to develop their own C code rather than using the provided
evaluation software.
To operate the EVAL-AD4111SDZ in standalone mode,
disconnect any board connected to J8 and use J10 to access all
SPI signals and set the input/output voltage levels.
POWER SUPPLIES
By default, the board is powered from the
SDP-B
connector.
The board can be also powered from J6 and J7 (set LK3 to
Position A) or from Pin +5V on J10 (see Table 2).
The
ADuM5411
iso
Power® digital isolator is used to isolate
power and data lines up to 2.5 kV rms.
ANALOG INPUTS
There are two types of analog inputs: voltage and current.
Eight voltage inputs are available on J1 and J2. Four current
inputs are available on J3.
If a different common voltage must be set for single-ended
measurement, remove LK2 and connect the desired voltage to
VCOM on J1.
REFERENCE OPTIONS
The EVAL-AD4111SDZ includes an external 2.5 V reference,
the
ADR4525ARZ
. By default, LK1 is inserted, connecting the
external reference to the REF+ pin of the
AD4111
.
Remove LK1 if using a different single-ended external reference.
In the evaluation software, click the blue pop-up button
associated with Setup 0 to Setup 7 to select the reference used
for conversions by the
AD4111
. The pop-up button is located
below the external reference controls in the block diagram
(Label 9 in Figure 16).
Table 2. Connector Details
Connector
Function
Connector Type
Manufacturer
Part Number
J1, J2, J4
Voltage inputs to ADC
Connector, header, 90°, 5-position, 3.81 mm
Phoenix Contact
MC 1, 5/5-G-3, 81
J3, J4
Current inputs to ADC
Connector, header, 90°, 5-position, 3.81 mm
Phoenix Contact
MC 1, 5/5-G-3, 81
J5
Earth for electrostatic discharge (ESD)
testing
1.25-MS3 ring tongue terminal, M3, No. 5,
16 AWG, 1.65 mm²
Japan Solderless
Terminals
1.25-MS3
J6, J7
External supply voltage (optional)
Connector, header, 90°, 5-position, 3.81 mm
Phoenix Contact
MC1.5/3-G-3.81
J8
Connector to the
EVAL-ADuCM3029 EZ-KIT
or
EVAL-SDP-CB1Z
120-way connector, 0.6 mm pitch
Hirose
FX8-120S-SV (21)
J10
SPI and power terminal
Header, in line, 7-position, 100 mil
Wurth Elektronik
61300711121
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