Table of Contents
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Introduction
The ADS7809 and ADS8509 are complete 16-bit analog-to-digital (A/D) using state-of-the-art CMOS
structures. They contain a complete 16-bit, capacitor-based, successive approximation register (SAR) A/D
with sample-and-hold, reference, clock, and a serial data interface. Data can be output using the internal
clock or can be synchronized to an external data clock. The ADS7809 and ADS8509 also provide an
output synchronization pulse for ease of use with standard DSP processors.
The EVM is available with either the ADS7809 or ADS8509 installed. The EVM can also accommodate
the 12-bit ADS7808 simply removing and replacing the installed device. Samples of the ADS7808 can be
obtained through the sample program at Texas Instruments. See the ADS7808 Product Folder for details.
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Features
• Full-Featured Evaluation Board for the ADS7808, ADS7809 or ADS8509, serial Analog to Digital
Converters
• 4 V, 5 V, 10 V, ±3.3 V, ±5 V and ±10 V Analog Input Ranges
• Built in reference
• High-Speed Serial Interface
• Compatible with the 5-6K Interface Board for use with a variety of DSP Starter Kits as well as the
HPA449 from SoftBaugh, Inc. (www.softbaugh.com).
• Field Programmable Gate Array (FPGA) users can evaluate the ADS78/8509 EVM by obtaining the
Texas Instruments Analog Adapter Kit from Avnet Design Services (www.em.avnet.com).
SLAU140 - November 2004
ADS78/8509 EVM User's Guide
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ADS78/8509 EVM User's Guide
User's Guide
SLAU140 - November 2004
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Table of Contents
Related Manuals for Texas Instruments ADS7809
Summary of Contents for Texas Instruments ADS7809
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Page 1: Table Of Contents
Data can be output using the internal clock or can be synchronized to an external data clock. The ADS7809 and ADS8509 also provide an output synchronization pulse for ease of use with standard DSP processors. -
Page 2: Analog Interface
www.ti.com Analog Interface Analog Interface For maximum flexibility, the ADS78/8509 EVM 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 ten-pin dual row header/socket combination at J1. This header/socket provides access to the analog input pins of the ADC. -
Page 3: Digital Interface
www.ti.com Digital Interface Digital Interface The ADS78/8509 EVM is designed for easy interfacing to multiple control platforms. Jumper options are provided on the EVM to allow direct control over the serial clock source as well as the data output and TAG features. -
Page 4: Evm Operation
No specific evaluation software is provided with this EVM, however, various code examples are available that show how to use this EVM with a variety of digital signal processors from Texas Instruments Incorporated. Check the product folders or send e-mail to dataconvapps@list.ti.com for a listing of available code examples. -
Page 5: Evm Bill Of Materials And Schematic
www.ti.com EVM Bill of Materials and Schematic Table 4. Factory Default Jumper Locations Jumper Function Default Condition Controls application of the applied analog signal to R1IN 5–6 Controls application of the applied analog signal to R2IN 1–2 Controls application of the applied analog signal to R3IN 5–6 Controls connection of 33.2 kΩ... -
Page 6: Related Documentation From Texas Instruments
Related Documentation from Texas Instruments Table 5. Bill of Materials (continued) Designators Description Manufacturer Mfg. Part Number TP2 TP3 Red test point loop Keystone 5000 TP1 TP5 TP4 TP6 Black test point loop Keystone 5001 ADS7809 or ADS8509 ADS7809U or ADS8509U... - Page 7 10uF 10uF 0.1uF 0.01uF 0.01uF 0.1uF +5VA +5VD 15uH 15uF 12500 TI Blvd. Dallas, Texas 75243 0 Ohm DGND AGND Title: ADS7809/8509 Evaluation Module Schematic Drawn By: Tom Hendrick Engineer: SIZE: DATE: 30-Oct-2004 REV: Tom Hendrick FILE: EDGE #6465121 SHEET:...
- Page 8 EVM IMPORTANT NOTICE Texas Instruments (TI) provides the enclosed product(s) under the following conditions: This evaluation kit being sold by TI is intended for use for ENGINEERING DEVELOPMENT OR EVALUATION PURPOSES ONLY and is not considered by TI to be fit for commercial use.
- Page 9 EVM schematic located in the EVM User's Guide. When placing measurement probes near these devices during operation, please be aware that these devices may be very warm to the touch. Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright © 2004, Texas Instruments Incorporated ADS78/8509 EVM User's Guide SLAU140 –...
- Page 10 TI as compliant with ISO/TS 16949 requirements. Buyers acknowledge and agree that, if they use any non-designated products in automotive applications, TI will not be responsible for any failure to meet such requirements. Following are URLs where you can obtain information on other Texas Instruments products and application solutions: Products...
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