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1 Introduction
1.1 Features
User's Guide
SLAU145 – December 2004
ADS78/8505EVM User's Guide
Contents
1 Introduction .......................................................................................... 1
2 Analog Interface .................................................................................... 2
3 Digital Interface ..................................................................................... 2
4 Power Supplies ..................................................................................... 4
5 EVM Operation ...................................................................................... 5
6 EVM Bill of Materials and Schematic ............................................................ 6
7 Related Documentation from Texas Instruments ............................................... 7
List of Tables
1 Pinout of the Analog Input Connector, J1 ....................................................... 2
2 Pinnout of the Digital Control Connector, J5 .................................................... 3
3 Pinout of the Power Supply Connector, J3 ...................................................... 4
4 Factory Default Jumper Locations ................................................................ 5
5 Bill of Materials ...................................................................................... 6
6 EVM Compatible Device Data Sheets, Users Guides and Additional Resources ......... 7
The ADS7805 and ADS8505 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, internal conversion clock, and a parallel data interface with 3-state
output drivers.
The evaluation module (EVM) is available with either the ADS7805 or ADS8505 installed. The EVM can
also accommodate the 12-bit ADS7804 simply removing and replacing the installed device. Samples of
the ADS7804 can be obtained through the sample program at Texas Instruments. See the ADS7804
Product Folder for details.
• Full-Featured Evaluation Board for the ADS7804, ADS7805 or ADS8505, parallel Analog to Digital
Converters
• Industry Standard ± 10 V Analog Input Range
• Built in reference
• Parallel Interface with 3-state output drivers
• 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 ADS78/8505EVM by obtaining the
Texas Instruments Analog Adapter Kit from Avnet Design Services (www.em.avnet.com).
ADS78/8505EVM User's GuideSLAU145 – December 2004 1
