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Texas Instruments DAC8555EVM - page 1
User's Guide SLAU204 – December 2006 DAC8555EVM User's Guide This user’s guide describes the characteristics, operation and use of the DAC8555 Evaluation Module (EVM). It covers all matters related to proper use and configuration of this EVM along with the devices that it supports. The physical printed circuit board (PCB) layout, sche ...
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Texas Instruments DAC8555EVM - page 2
www.ti.com Contents 1 Overview ............................................................................................. 3 2 PCB Design and Performance .................................................................... 6 3 EVM Operation .................................................................................... 16 4 Schematic ....... ...
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Texas Instruments DAC8555EVM - page 3
www.ti.com 1 Overview 1.1 Features 1.2 Power Requirements 1.2.1 Supply Voltage 1.2.2 Reference Voltage Overview This section gives a general overview of the DAC8555EVM and describes some of the factors that must be considered when using this demonstration board. The DAC8555EVM is a simple evaluation module designed for a quick and easy way to evalu ...
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Texas Instruments DAC8555EVM - page 4
www.ti.com 1.3 EVM Basic Functions Overview CAUTION When applying an external voltage reference through TP2 or J4-20, make sure that it does not exceed +5V maximum. External voltage references in excess of +5V can permanently damage the DAC8555 being tested (U1). The DAC8555EVM is designed to provide a demonstration platform for testing certain ope ...
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Texas Instruments DAC8555EVM - page 5
www.ti.com JMP1 1 JMP12 JMP13 JMP14 External Reference Module +5V A V DD +3.3V A (J2A) (J2B) DACModule (J4A) (J4B) 8CH (J1) (J5) (J3A) (J3B) 4CH JMP15 JMP16 JMP9 JMP10 DACOut V SS V H REF TP4 TP3 V CC GND V SS GND V DD +5V A +3.3V A DIN LDAC SCLK SYNC JMP5 JMP6 JMP4 JMP3 JMP8 V H REF TP2 V SS V CC V L REF Output Buffer Module RST RSTSEL ...
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Texas Instruments DAC8555EVM - page 6
www.ti.com 1.3.1 Related Documentation from Texas Instruments 2 PCB Design and Performance 2.1 PCB Layout PCB Design and Performance The following documents provide information regarding Texas Instrument integrated circuits used in the assembly of the DAC8555EVM. The latest revisions of these documents are available from the TI web site at http://w ...
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Texas Instruments DAC8555EVM - page 7
www.ti.com PCB Design and Performance Figure 2. DAC8555EVM PCB—Top Silkscreen Image Figure 3. DAC8555EVM PCB—Layer 1 (Top Signal Layer) SLAU204 – December 2006 DAC8555EVM User's Guide 7 Submit Documentation Feedback ...
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Texas Instruments DAC8555EVM - page 8
www.ti.com PCB Design and Performance Figure 4. DAC8555EVM PCB—Layer 2 (Ground Plane) Figure 5. DAC8555EVM PCB—Layer 3 (Power Plane) 8 DAC8555EVM User's Guide SLAU204 – December 2006 Submit Documentation Feedback ...
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Texas Instruments DAC8555EVM - page 9
www.ti.com PCB Design and Performance Figure 6. DAC8555EVM PCB—Layer 4 (Bottom Signal Layer) Figure 7. DAC8555EVM PCB—Bottom Silkscreen Image SLAU204 – December 2006 DAC8555EVM User's Guide 9 Submit Documentation Feedback ...
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Texas Instruments DAC8555EVM - page 10
www.ti.com 2.2 EVM Performance PCB Design and Performance Figure 8. DAC8555EVM—Drill Drawing The EVM performance test is executed using a high-density DAC bench test board, an Agilent 3458A digital multimeter and a PC running LabVIEW™ software. The EVM board is tested for linearity for all codes between 485 and 64741. The DUT is then allowed to ...
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Texas Instruments DAC8555EVM - page 11
www.ti.com PCB Design and Performance Figure 9. INL and DNL Characterization Graph of DAC A SLAU204 – December 2006 DAC8555EVM User's Guide 11 Submit Documentation Feedback ...
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Texas Instruments DAC8555EVM - page 12
www.ti.com PCB Design and Performance Figure 10. INL and DNL Characterization Graph of DAC B 12 DAC8555EVM User's Guide SLAU204 – December 2006 Submit Documentation Feedback ...
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Texas Instruments DAC8555EVM - page 13
www.ti.com PCB Design and Performance Figure 11. INL and DNL Characterization Graph of DAC C SLAU204 – December 2006 DAC8555EVM User's Guide 13 Submit Documentation Feedback ...
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Texas Instruments DAC8555EVM - page 14
www.ti.com PCB Design and Performance Figure 12. INL and DNL Characterization Graph of DAC D DAC8555EVM User's Guide 14 SLAU204 – December 2006 Submit Documentation Feedback ...
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Texas Instruments DAC8555EVM - page 15
www.ti.com 2.3 Bill of Materials PCB Design and Performance The parts list, showing the components used in the assembly of the DAC8555EVM, is given in Table 1 . Table 1. DAC8555EVM Parts List QTY PER MFR ITEM BOARD Ref Des MFR PART NUMBER DESCRIPTION 1 4 R11–R14 Panasonic ERJ-3GEY0R00V Chip Resistor, 0 Ω , 1/10W, 0603 2 1 R24 Panasonic ERJ-8GEY ...
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Texas Instruments DAC8555EVM - page 16
www.ti.com 3 EVM Operation 3.1 Default Settings 3.2 Host Processor Interface 3.3 EVM Stacking EVM Operation This section covers the operation of the EVM in detail, in order to provide guidance to the user in evaluating the onboard DAC as well as how to interface the EVM to a specific host processor. Refer to the DAC8555 datasheet for information ab ...
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Texas Instruments DAC8555EVM - page 17
www.ti.com 3.4 Output Op Amp EVM Operation Table 3. DAC Output Channel Mapping Reference Jumper Position Function 1-2 DAC output A (V OUT A) is routed to J4-2. JMP11 2-3 DAC output A (V OUT A) is routed to J4-10. 1-2 DAC output B (V OUT B) is routed to J4-4. JMP12 2-3 DAC output B (V OUT B) is routed to J4-12. 1-2 DAC output C (V OUT C) is routed t ...
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Texas Instruments DAC8555EVM - page 18
www.ti.com 3.4.1 Unity Gain Output 3.4.2 Output Gain of 2 EVM Operation The buffered output configuration can be used to prevent loading of the DAC8555, though it may add some slight distortion because of the feedback resistor and capacitor. The feedback circuit can be altered by simply desoldering R8 and C12 and replacing them with components of d ...
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Texas Instruments DAC8555EVM - page 19
www.ti.com 3.4.3 Capacitive Load Drive 3.5 Optional Signal Conditioning Op-Amp (U4B) 3.6 Jumper Settings EVM Operation It may be required to drive a wide range of capacitive loads. However, under certain conditions, all op amps may become unstable, depending on the op amp configuration, gain, and load value. These factors are just few of the issues ...
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Texas Instruments DAC8555EVM - page 20
www.ti.com 1 3 1 3 1 3 1 3 1 3 1 3 1 3 1 3 1 3 1 3 EVM Operation Table 7. Jumper Settings and Functions (continued) Reference Jumper Setting (1) Function RST pin is set high through pull-up resistor R4. RST can be driven by GPIO5, J2-19. JMP4 RST pin is set low. Disconnects V REF H to the inverting input of the op amp U2. JMP5 Connects V REF H to t ...
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Texas Instruments DAC8555EVM - page 21
www.ti.com 1 3 1 3 1 3 1 3 1 3 1 3 1 3 1 3 1 3 1 3 EVM Operation Table 7. Jumper Settings and Functions (continued) Reference Jumper Setting (1) Function Routes V OUT B to J4-4. JMP12 Routes V OUT B to J4-12. Routes V OUT C to J4-6. JMP13 Routes V OUT C to J4-14. Routes V OUT D to J4-8. JMP14 Routes V OUT D to J4-16. Routes J4-1 to U2 noninverting ...
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Texas Instruments DAC8555EVM - page 22
www.ti.com 4 Schematic Schematic 22 DAC8555EVM User's Guide SLAU204 – December 2006 Submit Documentation Feedback ...
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Texas Instruments DAC8555EVM - page 23
A B C D D C B A ti 6730 SOUTH TUCSON BLVD., TUCSON, AZ 85706 USA TITLE SHEET OF FILE SIZE DATE REV DRAW N BY ENGINEER REVISION HISTORY REV ENGINEERING CHANG E NUM BER APPROVED B DATA A CQUISITION PRODUCTS HIGH-PERFORMANCE ANALOG DIVISION SEMICONDUCTOR GROUP DOCUMENT CONTROL NO. DAC8555EVM A 11-Oct-2006 J. PARGUIAN R. BENJAMI N 6486604 1 1 C:USERDA ...
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Texas Instruments DAC8555EVM - page 24
FCC Warning 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 customer use. It generates, uses, and can radiate radio frequency energy and has not been tested for compliance with the limits of computing device ...
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Texas Instruments DAC8555EVM - page 25
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 ...
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