EVAL-AD5676SDZ Datasheet, PDF (5/12 Pages) Analog Devices – Full featured evaluation board

EVAL-AD5676SDZ/EVAL-AD5676RSDZ User Guide
UG-814
EVALUATION BOARD HARDWARE
POWER SUPPLIES
To use the evaluation board with the SDP-B board, a 6 V dc
power supply is required, which is connected to Connector J3.
The evaluation board can be used without the SDP-B board. In
this case, the J1 and J2 connectors are used as the power supply
inputs.
Both AGND and DGND inputs are provided on the board. The
AGND and DGND planes are connected at one location close
to the AD5676/AD5676R. It is recommended that AGND and
DGND not be connected elsewhere in the system to avoid
ground loop problems.
All supplies are decoupled to ground with 10 µF tantalum and
0.1 µF ceramic capacitors.
Table 1. Power Supply Connectors
Connector Number Voltage
J1
External, VLOGIC supply
J2
Analog power supply, VCC
J3
6 V dc board positive power supply
INPUT SIGNALS
When the SDP-B board controls the evaluation board, the
digital input signals are applied to Connector J4. When the
SDP-B board is not used, apply the digital signal to Connector J5.
OUTPUT SIGNALS
The DAC output voltages are available on the SMB connectors,
VOUT0 to VOUT7.
EEPROM
10-WAY
HEADER
ADR431
2.5V REF
V_REF
SPI
INTERFACE
AD5676/
AD5676R
VOUT0
VOUT1
VOUT6
VOUT7
Figure 2. Evaluation Board Block Diagram
Rev. 0 | Page 5 of 12