ATxmega128D4-AU ATMEL [ATMEL Corporation], ATxmega128D4-AU Datasheet - Page 46
ATxmega128D4-AU
Manufacturer Part Number
ATxmega128D4-AU
Description
8/16-bit Atmel XMEGA D4 Microcontroller
Manufacturer
ATMEL [ATMEL Corporation]
Datasheet
1.ATXMEGA128D4-AU.pdf
(136 pages)
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25. ADC – 12-bit Analog to Digital Converter
25.1
25.2
8135L–AVR–06/12
Features
Overview
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The ADC converts analog signals to digital values. The ADC has 12-bit resolution and is capable
of converting up to 200 thosuand samples per second (ksps). The input selection is flexible, and
both single-ended and differential measurements can be done. For differential measurements,
an optional gain stage is available to increase the dynamic range. In addition, several internal
signal inputs are available. The ADC can provide both signed and unsigned results.
The ADC measurements can either be started by application software or an incoming event from
another peripheral in the device. The ADC measurements can be started with predictable timing,
and without software intervention.
Both internal and external reference voltages can be used. An integrated temperature sensor is
available for use with the ADC. The V
the ADC.
The ADC has a compare function for accurate monitoring of user defined thresholds with mini-
mum software intervention required.
One Analog to Digital Converter (ADC)
12-bit resolution
Up to 200 thousand samples per second
Differential and single-ended input
Built-in differential gain stage
Single, continuous and scan conversion options
Three internal inputs
Internal and external reference options
Compare function for accurate monitoring of user defined thresholds
Optional event triggered conversion for accurate timing
Optional interrupt/event on compare result
– Down to 3.6µs conversion time with 8-bit resolution
– Down to 5.0µs conversion time with 12-bit resolution
– Up to 12 single-ended inputs
– 12x4 differential inputs without gain
– 8x4 differential inputs with gain
–
– Internal temperature sensor
– V
– 1.1V bandgap voltage
1/2
CC
x, 1x, 2x, 4x, 8x, 16x, 32x, and 64x gain options
voltage divided by 10
CC
/10 and the bandgap voltage can also be measured by
XMEGA D4
46
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