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Evaluation Board User Guide

UG-384

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

Evaluation Board for the AD5570

16-Bit ±12 V/±15 V Serial Input Voltage Output DAC

PLEASE SEE THE LAST PAGE FOR AN IMPORTANT

WARNING AND LEGAL TERMS AND CONDITIONS.

Rev. 0 | Page 1 of 12

FEATURES

Full-featured evaluation board for the AD5570

Link options

PC control in conjunction with the Analog Devices, Inc.,

system demonstration platform

PC software for control

DEVICE DESCRIPTION

The AD5570 is a single 16-bit serial input, voltage output DAC

that operates from supply voltages of ±11.4 V up to ±16.5 V.

INL and DNL are accurate to 1 LSB (maximum).

Complete specifications for the AD5570 are provided in the

AD5570 data sheet, available from Analog Devices, and should

be consulted in conjunction with this user guide when using the

evaluation board.

EVALUATION BOARD DESCRIPTION

The E VA L-AD5570SDZ is a full-featured evaluation board that

is designed to allow the user to easily evaluate all features of the

AD5570 voltage output, 16-bit digital-to-analog converter (DAC).

Components on the AD5570 evaluation board include SMB

connectors for interfacing to other equipment, a 5 V voltage

reference, and a ground force sense. Testpoints are provided on

all of the digital interface signal lines for ease of monitoring.

The user has the option of inserting both a resistive and

capacitive load on the output of the AD5570 at C1 and R1.

The board can be controlled by the system demonstration

platform (SDP) connector (J1). The SDP board allows the

evaluation board to be controlled through the USB port of a

Windows® XP (SP2 or later) or more recent 32-bit or 64-bit

(Vista, Windows 7) PC using the AD5570 evaluation software.

FUNCTIONAL BLOCK DIAGRAM

AD5570

10579-001

AD8675

EXT

+10V

REFIN

USB

PORT

SYSTEM

DEMONSTRATION

PLATFORM BOARD

DGND AGNDS AGND

OUT

Figure 1.

Summary of content (12 pages)

PAGE 1
Evaluation Board User Guide UG-384 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 Evaluation Board for the AD5570 16-Bit ±12 V/±15 V Serial Input Voltage Output DAC FEATURES EVALUATION BOARD DESCRIPTION Full-featured evaluation board for the AD5570 Link options PC control in conjunction with the Analog Devices, Inc.
PAGE 2
UG-384 Evaluation Board User Guide TABLE OF CONTENTS Features .............................................................................................. 1 On-Board Connectors ..................................................................3 Device Description ........................................................................... 1 Evaluation Board Software ...............................................................4 Evaluation Board Description...........................................
PAGE 3
Evaluation Board User Guide UG-384 EVALUATION BOARD HARDWARE POWER SUPPLIES Default Link Option Setup The following external supplies must be provided: The default link options are listed in Table 1. • Table 1. Default Link Options • +11.4 V to +16.5 V between the VDD and AGND inputs for the positive analog supply of the AD5570. −11.4 V to −16.5 V between the VSS and AGND inputs for the negative analog supply of the AD5570.
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UG-384 Evaluation Board User Guide EVALUATION BOARD SOFTWARE SOFTWARE INSTALLATION SOFTWARE OPERATION The AD5570 evaluation kit includes self-installing software on a CD. The software is compatible with Windows XP (SP2), Vista, and Windows 7 (32-bit or 64-bit). If the setup file does not run automatically, you can run the setup.exe file from the CD.
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Evaluation Board User Guide UG-384 FEATURES OF THE AD5570 EVALUATION BOARD SOFTWARE The software allows the user to control all the functionality of the AD5570. The main features are as follows: • • • • Load DAC register with a 16-bit word and update the AD5570 output. Data readback of the contents of the input shift register. Power down/power up the AD5570. Clear the AD5570 output to 0 V. Data Readback Clicking the READ REGISTER button reads back and displays the current contents of the DAC register.
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UG-384 Evaluation Board User Guide EVALUATION BOARD SCHEMATICS AND ARTWORK REFIN AVDD LK3 6 VREF C16 10uF 0.1uF /LDAC /SYNC SCLK SDI SDO C10 VSS C11 TRIM GND LK1 U1 VOUT' REFIN VSS VDD PD SDO DIN SCLK SYNC LDAC CLR 4 15 2 1 VOUT 9 12 13 16 11 REFGND REFGND VOUT AGND AGNDS AD5570 DGND 10 8 7 6 5 4 3 5 C35 0.1uF /PD SDO SDI SCLK /SYNC /LDAC /CLR 0.1uF U2 0.1uF 0.
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UG-384 10579-006 Evaluation Board User Guide 10579-007 Figure 6. Component Placement Schematic Figure 7. Top Printed Circuit Board (PCB) Layer Schematic Rev.
PAGE 8
Evaluation Board User Guide 10579-008 UG-384 10579-009 Figure 8. Inner First PCB Layer Schematic Figure 9. Inner Second PCB Layer Schematic Rev.
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UG-384 10579-010 Evaluation Board User Guide Figure 10. Bottom PCB Layer Schematic Rev.
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UG-384 Evaluation Board User Guide ORDERING INFORMATION BILL OF MATERIALS Table 4. Reference Designator /CLR, /LDAC, /PD, /SYNC, REFIN, SCLK, SDI, SDO, USB_VBUS, VOUT' C1, C4, C5, C7, C9, C10, C11, C12, C16, C35 C6, C8, C34 J1 J5 LK1, LK2, LK3 Part Description Testpoint Part Number 20-313137 Stock Code FEC 8731144 Gold plated pin receptacles 73007015 Analog Devices 73007015 Capacitor +, Case B, 10 µF, 20 V 120-way connector, 0.6 mm pitch 3-pin terminal block, 5 mm pitch Jumper block, 2 pins, 0.
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Evaluation Board User Guide UG-384 NOTES Rev.
PAGE 12
UG-384 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.