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User's Guide

SBAU185–January 2011

ADS7263/8363

ADS7263/8363EVM

This user's guide describes the characteristics, operation, and use of the ADS7263/8363EVM. This

evaluation module (EVM) is an evaluation platform for the ADS7263, a 14-bit, dual, 500-kSPS, 2×2

channel, serial analog-to-digital converter (ADC), and the ADS8363, a 16-bit, 4×2 channel version of the

ADS7263. The EVM allows evaluation of all aspects of the ADS7263 or ADS8363 device. A complete

circuit description, schematic diagram, and bill of material are included in this document.

The following related documents are available through the Texas Instruments web site at

http://www.ti.com.

Summary of content (8 pages)

PAGE 1
User's Guide SBAU185 – January 2011 ADS7263/8363 ADS7263/8363EVM This user's guide describes the characteristics, operation, and use of the ADS7263/8363EVM. This evaluation module (EVM) is an evaluation platform for the ADS7263, a 14-bit, dual, 500-kSPS, 2×2 channel, serial analog-to-digital converter (ADC), and the ADS8363, a 16-bit, 4×2 channel version of the ADS7263. The EVM allows evaluation of all aspects of the ADS7263 or ADS8363 device.
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EVM Overview www.ti.com 1 2 3 4 5 6 Contents EVM Overview ............................................................................................................... Analog Interface ............................................................................................................. Digital Interface .............................................................................................................. Power Supplies ....................................................................
PAGE 3
Analog Interface www.ti.com 2 Analog Interface For maximum flexibility, the ADS7263/8363EVM is designed for easy interfacing to multiple analog sources. Samtec part numbers SSW-110-22-F-D-VS-K and TSM-110-01-T-DV-P provide a convenient, 10-pin dual row header/socket combination at J1. This header/socket provides access to the analog input pins of the ADC. Consult Samtec at http://www.samtec.com or call 1-800-SAMTEC-9 for a variety of mating connector options.
PAGE 4
Power Supplies 3.1 www.ti.com Additional Control Options Table 3 shows the pinout of J2. This dual row, four-position header provides additional control functionality to the ADS7263/8363EVM. Signals A0, M0, and M1 are configured with pull-up resistors by default. The jumper shunts supplied with the EVM can be used to set these signals to logic low. These signals can also be connected to control signals in your system. Table 3. J2 Control Header Pinout 4 Pin Number Signal J2.
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Schematics and Layout www.ti.com 6.1 Bill of Materials NOTE: All components should be compliant with the European Union Restriction on Use of Hazardous Substances (RoHS) Directive. Some part numbers may be either leaded or RoHS. Verify that purchased components are RoHS-compliant. (For more information about TI's position on RoHS compliance, see the TI web site.) Table 4. ADS7223/7263/8363EVM Bill of Materials Item No.
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1 2 4 3 Revision History AVdd U1A 8 C10 REV ECN Number Approved 1uF 3 1 2 4 OPA2365 R1 D U2 49.9 49.9 R2 U1B 1 C11 NI 49.9 7 5 R4 2 C3 3900pF C4 6 3 NI 4 49.9 5 C12 C5 NI JP2 J1 C 1 3 5 7 9 11 13 15 17 19 JP1 2 4 6 8 10 12 14 16 18 20 6 3900pF C6 R6 7 NI 8 49.9 R7 49.9 C13 9 C1 C9 TP5 C17 JP3 3900pF 22uF NI 49.9 R9 11 22uF 13 29 CMA C7 NI 12 30 C2 C8 10 C18 JP4 49.
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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.
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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.