LM3S317-IQN20-A0T Luminary Micro, Inc., LM3S317-IQN20-A0T Datasheet - Page 207

• Manufacturer Part Number: LM3S317-IQN20-A0T
• Description: Microcontroller
• Manufacturer: Luminary Micro, Inc.

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May 4, 2007
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
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Hardware averaging of up to 64 samples for improved accuracy
Controller (software)
Timers
Analog Comparator
PWM
GPIO
Preliminary
LM3S317 Data Sheet
207