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Evaluation Board User Guide

UG-215

One Technology Way • P. O. Box 9106 • Norwood, MA 02062-9106, U.S.A. • Tel: 781.329.4700 • Fax: 781.461.3113 • www.analog.com

Evaluating the AD5543 Current Output/Serial Input DAC

PLEASE SEE THE LAST PAGE FOR AN IMPORTANT

WARNING AND LEGAL TERMS AND CONDITIONS.

Rev. A | Page 1 of 12

FEATURES

Full-featured evaluation board for the AD5543

Graphic user interface software for board control and data

analysis

Connector to EVAL-SDP-CB1Z system development platform

board

Various power supply options

APPLICATIONS

Automatic test equipment

Instrumentation

Digitally controlled calibration

Industrial control PLCs

GENERAL DESCRIPTION

The AD5543 is a precision, 16-bit, low power, current output,

small form factor, digital-to-analog converter (DAC). It is

designed to operate from a single 5 V supply with a ±10 V

multiplying reference.

The applied external reference, V

REF

, determines the full-scale

output current. An internal feedback resistor (RFB) facilitates

the R-2R and temperature tracking for voltage conversion when

combined with an external op amp.

A serial data interface offers high speed, 3-wire, microcontroller-

compatible inputs using serial data input (SDI), clock (CLK),

and chip select (

The AD5543 is packaged in ultracompact (3 mm × 4.7 mm)

8-lead MSOP and 8-lead SOIC packages.

The E VA L-AD5543/53SDZ board is used in conjunction with

the EVA L-SDP-CB1Z system development platform (SDP) board

available from Analog Devices, Inc., which is purchased sepa-

rately from the evaluation board. The USB-to-SPI communication

to the AD5543 is completed using this Blackfin®-based develop-

ment board. The software offers a waveform generator.

The EVAL-AD5543/53SDZ can also be used for the AD5553 by

changing the number of bits written (14 bits) in the input.

FUNCTIONAL BLOCK DIAGRAM

DVDD DGND VSS AGND

VDD

AD5543/AD5553

16-/14-BIT DAC

AD8065

I-TO-V

OUT

REF

ADR435

REFERENCE

CONNECTOR TO EVAL-SDP-CB1Z

SDIN SCLKCS

09485-001

Figure 1.

Summary of content (12 pages)

PAGE 1
Evaluation Board User Guide UG-215 One Technology Way • P.O. Box 9106 • Norwood, MA 02062-9106, U.S.A. • Tel: 781.329.4700 • Fax: 781.461.3113 • www.analog.com Evaluating the AD5543 Current Output/Serial Input DAC FEATURES The applied external reference, VREF, determines the full-scale output current. An internal feedback resistor (RFB) facilitates the R-2R and temperature tracking for voltage conversion when combined with an external op amp.
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UG-215 Evaluation Board User Guide TABLE OF CONTENTS Features .............................................................................................. 1 Evaluation Board Software ...............................................................3 Applications ....................................................................................... 1 Quick Start Procedure ..................................................................3 General Description ...........................................
PAGE 3
Evaluation Board User Guide UG-215 EVALUATION BOARD SOFTWARE 3. QUICK START PROCEDURE To get started, do the following: Load and install the software CD. Plug in the SDP board. The Found New Hardware Wizard dialog box opens, which allows you to install the software automatically. 4. 5. 09485-002 1. 2. Load the software for the SDP board. Click the Start button on the bottom left corner of your screen, then All Programs, then AD5543, and finally select the SDP32NET executable for the SDP board.
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UG-215 Evaluation Board User Guide • AD5543 EVALUATION SOFTWARE WINDOW LEVEL SET The LEVEL SET section in the AD5543 evaluation software allows you to choose the amplitude for the waveform depending on the code entered in the Input Data box. Click the Write To DAC button to load the code.
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UG-215 09485-003 Evaluation Board User Guide Figure 3. Example 1 Rev.
PAGE 6
Evaluation Board User Guide 09485-004 UG-215 Figure 4. Example 2 Rev.
PAGE 7
Evaluation Board User Guide UG-215 EVALUATION BOARD SCHEMATICS AND ARTWORK DVDD J1-1 VDD DAC + Vin for SDP J1-2 DGND J1-5 Op-Amp + Reference Supply J1-4 J1-3 DVDD VSS C1 10uF C2 0.1uF + SCLK SDIN VOUT C4 7 VDD CS VSS U1 1 SCLK 2 SDIN 8 CS SCLK RFB SDIN IOUT CS 3 C3 5.6pF 5 2 VREF + C5 0.1uF VOUT J4 U3 - 4 VOP V+ 3 7 + DIS 8 4 10uF 6 AD5543_53 VDD VREF VDD C8 10uF + +VIN VOUT LK1 6 U2 ADR435 C9 5 TRIM 0.1uF GND C10 C7 0.1uF VREF J3 0.
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UG-215 Evaluation Board User Guide BMODE1: Pull up with a 10K resistor to set SDP to boot from a SPI FLASH on the daughter board J2 VIN: Use this pin to power the SDP requires 4-7V 200mA RESET_IN BMODE1 UART_RX UART_TX GND GND NC NC SDP NC NC STANDARD NC NC CONNE CTOR NC NC NC NC GND GND NC NC NC NC TMR_C * TMR_D TIMERS TMR_A TMR_B GPIO6 GPIO7 GND GND GENERAL GPIO4 GPIO5 INPUT/OUTPUT GPIO2 GPIO3 GPIO0 GPIO1 SCL_1 SCL_0 I2C SDA_1 SDA_0 GND GND SPI_SEL1/SPI_SS SPI_CLK SPI_SEL_C SPI_MISO SPI SPI_SEL_B SPI_M
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Evaluation Board User Guide UG-215 09485-007 EVALUATION BOARD LAYOUT 09485-008 Figure 7. Silkscreen Top 09485-009 Figure 8. Top Side Figure 9. Bottom Side Rev.
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UG-215 Evaluation Board User Guide RELATED LINKS Resource AD5543 AD5553 ADR435 AD8065 Description Product Page, AD5543 16-Bit DAC in µSOIC-8 Package Product Page, AD5553 14-Bit DAC in µSOIC-8 Package Product Page, ADR435 Ultralow Noise XFET® Voltage References with Current Sink and Source Capability Product Page, AD8065 High Performance, 145 MHz FastFET™ Op Amp Rev.
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Evaluation Board User Guide UG-215 NOTES Rev.
PAGE 12
UG-215 Evaluation Board User Guide NOTES ESD Caution ESD (electrostatic discharge) sensitive device. Charged devices and circuit boards can discharge without detection. Although this product features patented or proprietary protection circuitry, damage may occur on devices subjected to high energy ESD. Therefore, proper ESD precautions should be taken to avoid performance degradation or loss of functionality.