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This user's guide describes the characteristics, operation, and use of the DAC8562EVM. The evaluation
model (EVM) is an evaluation board for the
low-power, voltage-output, 12- or 16-bit digital-to-analog converters (DACs). These converters are
controlled through a serial peripheral interface (SPI) that can operate at clock rates of up to 50MHz.
Additionally, these DACs include a 2.5V internal reference voltage (disabled by default), giving a full-scale
output range of 5V when placed in a gain of two configuration. The EVM allows evaluation of all aspects of
the device and allows user control over every pin on the DAC7562/DAC8562. Complete circuit
descriptions, schematic diagrams, and bills of material are included in this document.
The following related documents are available for download through the Texas Instruments web site at
http://www.ti.com.
All trademarks are the property of their respective owners.
SBAU183A – May 2011 – Revised June 2011
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DAC7562EVM, DAC8562EVM
DAC8562EVM
DAC7562
EVM-Related Device Data Sheets
Device
DAC7562
DAC8562
REF5025
OPA379
Copyright © 2011, Texas Instruments Incorporated
SBAU183A – May 2011 – Revised June 2011
and DAC8562. The DAC7562 and DAC8562 are
Literature Number
SLAS719A
SLAS719A
SBOS410D
SBOS347D
DAC7562EVM, DAC8562EVM
User's Guide
1
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Table of Contents
Related Manuals for Texas Instruments DAC7562EVM
Summary of Contents for Texas Instruments DAC7562EVM
- Page 1 DAC7562/DAC8562. Complete circuit descriptions, schematic diagrams, and bills of material are included in this document. The following related documents are available for download through the Texas Instruments web site at http://www.ti.com.
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Page 2: Table Of Contents
J1: Analog Interface Pinout ....................J2.3: Serial Interface Pins ..................J3 Configuration: Power-Supply Input ....................DAC8562EVM Jumpers ......................Bill of Materials SBAU183A – May 2011 – Revised June 2011 DAC7562EVM, DAC8562EVM Submit Documentation Feedback Copyright © 2011, Texas Instruments Incorporated... -
Page 3: Evm Overview
J1.6-1.18 (even) — Op amp bipolar output (requires J1.10 installed components) J1.12 - J1.18 (even) — J1.15 Buffered internal reference voltage SBAU183A – May 2011 – Revised June 2011 DAC7562EVM, DAC8562EVM Submit Documentation Feedback Copyright © 2011, Texas Instruments Incorporated... -
Page 4: Digital Interface
J2 header: J2.1, or J2.7 and J2.9. The SCLK signal is routed to both J2.3 and J2.5. The DIN signal is routed to the J2.11 pin on the J2 header. SBAU183A – May 2011 – Revised June 2011 DAC7562EVM, DAC8562EVM Submit Documentation Feedback Copyright © 2011, Texas Instruments Incorporated... -
Page 5: Power Supplies
+VA and –VA supplies. If the op amp is installed, J3.1 and J3.2 must be powered by ±15V in order for the bipolar circuit to be functional. SBAU183A – May 2011 – Revised June 2011 DAC7562EVM, DAC8562EVM Submit Documentation Feedback Copyright © 2011, Texas Instruments Incorporated... -
Page 6: Voltage Reference
This REFIN REFOUT condition may cause permanent damage to the DACx562. Figure 1. Reference Selection Jumper JP3 SBAU183A – May 2011 – Revised June 2011 DAC7562EVM, DAC8562EVM Submit Documentation Feedback Copyright © 2011, Texas Instruments Incorporated... -
Page 7: Evm Operation
Texas Instruments. No specific evaluation software is provided with this EVM. However, various code examples are available that show how to use EVMs with a variety of digital signal processors from Texas Instruments. Check the respective product folders on the... -
Page 8: Dac8562Evm Default Jumper Locations
LDAC signal to J2.17. The shunt can be placed across JP6.1 and JP6.2 to route the LDAC signal to J2.15. SBAU183A – May 2011 – Revised June 2011 DAC7562EVM, DAC8562EVM Submit Documentation Feedback Copyright © 2011, Texas Instruments Incorporated... -
Page 9: Schematics And Layout
OPA379AIDBVT Not installed — — 0.100 Shunt, black Samtec SNT-100-BK-T The device installed at location U1 depends on the EVM purchased. SBAU183A – May 2011 – Revised June 2011 DAC7562EVM, DAC8562EVM Submit Documentation Feedback Copyright © 2011, Texas Instruments Incorporated... -
Page 10: Dac8562Evm: Bottom Layer Image
Schematics and Layout www.ti.com Figure 3. DAC8562EVM: Top Layer Image Figure 4. DAC8562EVM: Bottom Layer Image SBAU183A – May 2011 – Revised June 2011 DAC7562EVM, DAC8562EVM Submit Documentation Feedback Copyright © 2011, Texas Instruments Incorporated... - Page 11 Changes from Original (May, 2011) to A Revision ......................Page ................• Updated document title to reflect DAC7562EVM device NOTE: Page numbers for previous revisions may differ from page numbers in the current version. SBAU183A – May 2011 – Revised June 2011 Revision History Submit Documentation Feedback...
- Page 12 Revision History ECN Number Approved Second Proto Release Optional circuit to create Bipolar output Production Release 0.1uF AVdd OUT_A VoutA /CLR /CLR OUT_B /LDAC /LDAC VoutB A0(+) A0(-) A1(+) A1(-) A2(+) A2(-) A3(+) A3(-) /SYNC /SYNC AGND AGND SCLK SCLK AGND VCOM REF-...
- Page 13 Evaluation Board/Kit Important Notice Texas Instruments (TI) provides the enclosed product(s) under the following conditions: This evaluation board/kit is intended for use for ENGINEERING DEVELOPMENT, DEMONSTRATION, OR EVALUATION PURPOSES ONLY and is not considered by TI to be a finished end-product fit for general consumer use. Persons handling the product(s) must have electronics training and observe good engineering practice standards.
- Page 14 IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.
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