Analog Devices AD5380 Evaluation Board EVAL-AD5380EBZ EVAL-AD5380EBZ Data Sheet
Product codes
EVAL-AD5380EBZ
Evaluation Board for 32-/40-Channel, 12-/14-Bit,
Parallel and Serial Input, Voltage-Output DACs
EVAL-AD5380/81/82/83EB
Rev. 0
Information furnished by Analog Devices is believed to be accurate and reliable.
However, no responsibility is assumed by Analog Devices for its use, nor for any
infringements of patents or other rights of third parties that may result from its use.
Specifications subject to change without notice. No license is granted by implication
or otherwise under any patent or patent rights of Analog Devices. Trademarks and
registered trademarks are the property of their respective owners.
However, no responsibility is assumed by Analog Devices for its use, nor for any
infringements of patents or other rights of third parties that may result from its use.
Specifications subject to change without notice. No license is granted by implication
or otherwise under any patent or patent rights of Analog Devices. Trademarks and
registered trademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Tel: 781.329.4700
Fax: 781.326.8703
© 2004 Analog Devices, Inc. All rights reserved.
FEATURES
Full-featured evaluation board
On-board reference
On-board ADC for MON_OUT voltage readback
Link options
Direct hook-up to printer port of PC
PC software for control of DACs
On-board reference
On-board ADC for MON_OUT voltage readback
Link options
Direct hook-up to printer port of PC
PC software for control of DACs
INTRODUCTION
This evaluation board is for the AD5380, AD5381, AD5382, and
AD5383, 32-/40-channel, 12-/14-bit DACs. The AD538x parts
contain 32/40, 12-/14-bit DACs in one package. They have a
maximum output voltage span of 5 V derived from a reference
voltage of 2.5 V.
AD5383, 32-/40-channel, 12-/14-bit DACs. The AD538x parts
contain 32/40, 12-/14-bit DACs in one package. They have a
maximum output voltage span of 5 V derived from a reference
voltage of 2.5 V.
The AD538x parts have a parallel interface in which 12/14 data
bits are loaded into one of the input registers under the control
of the WR, CS, and DAC channel address pins, A0 to A5. They
also have a 2-wire I
bits are loaded into one of the input registers under the control
of the WR, CS, and DAC channel address pins, A0 to A5. They
also have a 2-wire I
2
C interface and a 3-wire serial interface,
which are compatible with SPI®, QSPI™, MICROWIRE™, and
DSP interface standards.
DSP interface standards.
The DAC outputs are updated when the DAC registers receive
new data. All the outputs can be updated simultaneously by
taking the LDAC input low.
new data. All the outputs can be updated simultaneously by
taking the LDAC input low.
Each channel has a programmable gain and offset adjust
register. Each DAC output is gained and buffered on-chip.
register. Each DAC output is gained and buffered on-chip.
See the AD5380, AD5381, AD5382, and AD5383 data sheets for
product details.
product details.
AD538x EVALUATION BOARD POWER SUPPLIES
The following external supplies must be provided:
• 5 V between the DV
CC
and DGND inputs for the digital
supply of the AD538x.
• 5 V between the AV
CC
and AGND inputs for the analog
supply of the AD538x.
Both AGND and DGND inputs are provided on the board. The
AGND and DGND planes are connected at one location close
to the AD538x. Avoid connecting AGND and DGND elsewhere
in the system to avoid ground loop problems.
AGND and DGND planes are connected at one location close
to the AD538x. Avoid connecting AGND and DGND elsewhere
in the system to avoid ground loop problems.
Each supply is decoupled to the relevant ground plane with
47 µF and 0.1 µF capacitors. Each device supply pin is again
decoupled with a 10 µF and 0.1 µF capacitor pair to the relevant
ground plane.
47 µF and 0.1 µF capacitors. Each device supply pin is again
decoupled with a 10 µF and 0.1 µF capacitor pair to the relevant
ground plane.
FUNCTIONAL BLOCK DIAGRAM
POWER SUPPLY INPUTS
2.5V REFERENCE
V
REF (+)
V
OUT
0
V
OUT
39
AD5380
40-CHANNEL
DAC
ADC
V0
V39/MON_OUT
PARALLEL INTERFACE
28-PIN HEADER
SERIAL INTERFACE
7-PIN HEADER
SERI
A
L I
N
TERFACE
36-PI
N CONNECTOR
04934-0-001
Figure 1.