LM3S317 Datasheet, PDF (207/379 Pages) List of Unclassifed Manufacturers – Microcontroller

LM3S317 Data Sheet
11 Analog-to-Digital Converter (ADC)
An analog-to-digital converter (ADC) is a peripheral that converts a continuous analog voltage to a
discrete digital number.
The Stellaris ADC module features 10-bit conversion resolution and supports six input channels,
plus an internal temperature sensor. The ADC module contains a programmable sequencer which
allows for the sampling of multiple analog input sources without controller intervention. Each
sample sequence provides flexible programming with fully configurable input source, trigger
events, interrupt generation, and sequence priority.
The Stellaris ADC provides the following features:
„ Six analog input channels
„ Single-ended and differential-input configurations
„ Internal temperature sensor
„ Sample rate of 250 thousand samples/second
„ Four programmable sample conversion sequences from one to eight entries long, with
corresponding conversion result FIFOs
„ Flexible trigger control
– Controller (software)
– Timers
– Analog Comparator
– PWM
– GPIO
„ Hardware averaging of up to 64 samples for improved accuracy
May 4, 2007
207
Preliminary