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User

'

s Guide

SBAU176A

August 2010

Revised May 2011

ADS833xEVM User

'

s Guide

ADS833xEVM

This user's guide describes the characteristics, operation, and use of the ADS833xEVM. This evaluation
model (EVM) is an evaluation board for the

ADS8331

and the

ADS8332

a high-performance, 16-bit, four-

or eight-channel, successive approximation register (SAR) analog-to-digital converter (ADC). The EVM
allows evaluation of all aspects of the ADS8331 and ADS8332. 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

.

Related Documentation

Device

Literature Number

ADS8331

SBAS363

ADS8332

SBAS363

REF5040

SBOS410

OPA350

SBOS099

TL750L05

SLVS017

I

2

C is a trademark of NXP Semiconductors.

All other trademarks are the property of their respective owners.

1

SBAU176A

August 2010

Revised May 2011

ADS833xEVM User

'

s Guide

Submit Documentation Feedback

Copyright

©

2010

2011, Texas Instruments Incorporated

Summary of Contents for ADS833 EVM Series

Page 1: ...ADS8331 and ADS8332 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 In...

Page 2: ...of Materials 8 1 EVM Overview 1 1 Features ADS833xEVM Contains all support circuitry needed for the ADS8331 or ADS8332 Voltage reference options external or onboard Master clock options Internal osci...

Page 3: ...samtec com or call 1 800 SAMTEC 9 for a variety of mating connector options The input pins on the ADS833xEVM are directly connected to the part with no filtering or protection It is important that app...

Page 4: ...PIO1 Unused J2 7 FSX CS FS In None CS FS signal see jumper JP4 J2 8 GPIO2 Unused J2 9 FSR CS FS In None CS FS signal see jumper JP4 J2 10 DGND DGND In Out None Digital ground J2 11 DX DIN In None ADS8...

Page 5: ...in an unknown state The digital voltage supply for the ADS833x is controlled by jumper JP7 By default the jumper is in the 1 2 position set to use the 5VD to power the ADC VBD supply The 3 3VD supply...

Page 6: ...l eight of the analog input channels using a single op amp In the EVM design the OPA211 is used in a unity gain configuration in combination with a 34 8 and 750pf first order RC filter This configurat...

Page 7: ...erence buffer By default JP5 is in the 1 2 position and JP12 is installed routing the reference voltage through the OPA350 and connecting it to the ADC reference If JP12 is removed and JP5 is in the 2...

Page 8: ...om Side 5 pin Dual row SM header 10 Pos Samtec SSW 105 22 F D VS K 13 5 5 JP3 JP4 JP5 Header strip 3 pin 1x3 Samtec TSW 103 07 L S JP6 JP7 14 0 0 JP8 Not installed 15 2 2 JP9 JP12 Header strip 2 pin 1...

Page 9: ...PS 8 Ch 24VQFN Texas ADS8332IBRGET Instruments 29 1 1 U4 IC EEPROM 256Kbit 400kHz 8SOIC Microchip 24AA256 I SN 30 1 1 U5 IC Precision V ref 4 096V LN 8 SOIC Texas REF5040AID Instruments 31 1 1 U7 IC O...

Page 10: ...www ti com Figure 3 ADS833xEVM Top Layer Figure 4 ADS833xEVM Bottom Layer 10 ADS833xEVM User s Guide SBAU176A August 2010 Revised May 2011 Submit Documentation Feedback Copyright 2010 2011 Texas Inst...

Page 11: ...2010 to A Revision Page Updated Table 3 5 NOTE Page numbers for previous revisions may differ from page numbers in the current version 11 SBAU176A August 2010 Revised May 2011 Revision History Submit...

Page 12: ...2 NC 1 NC 7 NC 8 U5 REF5040 VA VCC_D 5VA C16 10uF R20 4 99k R19 4 99k VCC_D JP4 C22 10uF C17 1uF VA C13 0 1uF R14 33 R13 0 5 TOUT R17 10K Ch0_FLT R2 0 C2 DNI Ch1_FLT REF RESET S1 PUSHBUTTON TP2 R4 0...

Page 13: ...roduct This notice contains important safety information about temperatures and voltages For additional information on TI s environmental and or safety programs please contact the TI application engin...

Page 14: ...orized for use in safety critical applications such as life support where a failure of the TI product would reasonably be expected to cause severe personal injury or death unless officers of the parti...

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