+IN

ADS8317

1000pF

10W

-IN

0.1mF

5W

CS

D

OUT

DCLOCK

47mF

IN

GND

OUT

0.47mF

REF

V

DD

REF3225

AV

DD

2.7Vto5V

DV

DD

2.7Vto3.6V

V

CM +(0Vto2.5V)

GND

GND

DSP

TMS320C6xx

or

TMS320C5xx

or

TMS320C2xx

0.1mF

10mF

10mF

+

+

OPA350

OPA365

1000pF

10W

V

CM

OPA365

1nF

10W

2.2mF

ADS8317

SBAS356D – JUNE 2007 – REVISED OCTOBER 2009 .................................................................................................................................................... www.ti.com

APPLICATION CIRCUITS

on the supply, as well as any high-frequency noise

Figure 45 shows an example of a basic data

from the supply itself. The exact values should be

acquisition system. The ADS8317 input range is

picked such that the filter provides adequate rejection

connected to 2.5V or 4.096V. The 5

Ω resistor and

of noise. Operational amplifiers and voltage reference

1

μF to 10μF capacitor filters the microcontroller noise

are connected to the analog power supply, AVDD.

Figure 45. Example of a Basic Data Acquisition System

24

Submit Documentation Feedback

Copyright © 2007–2009, Texas Instruments Incorporated

Product Folder Link(s): ADS8317