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This user's guide describes the characteristics, operation, and use of the ADS8372
16-bit, 600 kHz, high speed, serial interface Analog-to-Digital converter Evaluation
Board (EVM). A complete circuit description, schematic diagram, and bill of materials
are included.
The following related documents are available on the TI web site at www.ti.com.
Data Sheets:
ADS8372
REF1004C-2.5
SN74AHC1G125
THS4131
OPA627AU
1
2
3
4
5
6
8
9
Schematics
1
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2
3
4
5
1
Analog Input Connector
2
3
4
5
Power Connector (J3) Pin Out
7
ADS8372EVM Bill of Materials
SLAU160 - July 2005
Literature Numbers:
SLAS451
SBVS002
SCLS377
SLOS318
SBOS165
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Contents
List of Figures
List of Tables
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User's Guide
SLAU160 - July 2005
ADS8372EVM
ADS8372EVM
2
2
4
5
5
7
9
11
3
9
9
10
10
2
4
4
5
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7
1
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Table of Contents
Related Manuals for Texas Instruments ADS8372EVM
Summary of Contents for Texas Instruments ADS8372EVM
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Page 1: Table Of Contents
Contents ....................... EVM Overview ......................Analog Interface ......................Digital Interface ......................Power Supplies ....................... Using the EVM .................... ADS8372EVM Bill Of Materials ......................... Board Layers ........................Schematics List of Figures ......................Input Buffer Circuit ........................Top Layer ........................Power Plane ....................... -
Page 2: Evm Overview
• Input and output digital buffer Analog Interface The ADS8372EVM ships with buffer U13 configured in a unity-gain, single-ended to differential out configuration. The common-mode voltage pin of the THS4131 is factory set to 2.0 V on the evaluation module, and can be adjusted using potentiometer RP1. The potentiometer connects between the output of reference buffer U3 and ground. -
Page 3: Input Buffer Circuit
Section 9 for more information. The common footprint for U14 allows users to evaluate this converter with various reference ICs. The EVM ships with the internal reference tied directly to the reference pin of the converter. SLAU160 – July 2005 ADS8372EVM... -
Page 4: Digital Interface
P1 and P2 to plug into prototype boards or ribbon cable over to user system boards. The digital input and output signals for the converter is available at connector P2 on the ADS8372EVM, Table 3 for the connector pinout. -
Page 5: Power Supplies
3. As a software test platform Reference Design As a reference design, the ADS8372EVM contains the essential circuitry to showcase the analog-to-digital converter. This essential circuitry includes the input amplifier, reference circuit, and buffers. The EVM analog-input circuit is optimized for a 100-kHz input signal; therefore, users may need to adjust the resistor and capacitor values to accommodate higher frequencies. - Page 6 As a software test platform, connectors P1 and P2 plug into the serial interface connectors of the 5-6K interface card. The 5-6K interface card plugs into the C5000 and C6000 Digital Signal Processor starter kits (DSK). Refer to the 5-6K Interface Card User’s Guide (SLAU104) for more information. ADS8372EVM SLAU160 – July 2005...
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Page 7: Ads8372Evm Bill Of Materials
ADS8372EVM Bill Of Materials ADS8372EVM Bill Of Materials The following table contains a complete bill of materials for the ADS8372EVM. The schematic diagram is also provided for reference. Contact the Product Information Center or email dataconvapps@list.ti.com questions regarding this EVM. - Page 8 ADS8372EVM Bill Of Materials Table 7. ADS8372EVM Bill of Materials (continued) Reference Manufacturer's Value Footprint Manufacturer Description Designators Part Number 10 kΩ BOURNS_3296Y Bourns Inc. 3296Y-1-103 POT 10 kΩ 3/8" SQ CERM SL MT FERRITE CHIP 600 Ω 500 mA 0805...
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Page 9: Board Layers
Board Layers Board Layers Figure 2. Top Layer Figure 3. Power Plane SLAU160 – July 2005 ADS8372EVM... -
Page 10: Ground Plane
Board Layers Figure 4. Ground Plane Figure 5. Bottom Layer ADS8372EVM SLAU160 – July 2005... - Page 11 Schematics Schematics Schematic diagrams are appended following this page. SLAU160 – July 2005 ADS8372EVM...
- Page 12 Serial Control +AVCC DGND AGND +3.3VD +5VD Power Supply +BVDD +BVDD +AVCC +AVCC Circuits 12500 TI Boulevard. Dallas, Texas 75243 TITLE: ADS8372EVM/ADS8382EVM Lijoy Philipose Engineer: DOCUMENT CONTROL #: REV: Lijoy Philipose 6458774 Drawn By: FILE: BlockDiagram.sch DATE: 30-Jun-2005 SIZE: SHEET:...
- Page 13 Revision History ECN Number Approved +5VCC +VBD +VBD +VCC 0.1uF 0.1uF B_PD SJP1 SJP2 +VBD SN74AHC1G125 0.1uF EXT_REF 47uF B_FS CONVST OPA627 +VBD SN74AHC1G125 CONVST +5VCC +5VCC SCLK SCLK 0.1uF B_CS 1.2k 2.2uF 2.2uF SN74AHC1G125 +VBD SJP3 -VCC 0.1uF +5VCC 0.01uF B_CONVST 0.1uF...
- Page 14 TI product or service and is an unfair and deceptive business practice. TI is not responsible or liable for any such statements. Following are URLs where you can obtain information on other Texas Instruments products and application solutions:...
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