ATXMEGA128B3-AU ATMEL [ATMEL Corporation], ATXMEGA128B3-AU Datasheet - Page 52

• Manufacturer Part Number: ATXMEGA128B3-AU
• Description: 8/16-bit Atmel XMEGA B3 Microcontroller
• Manufacturer: ATMEL [ATMEL Corporation]

Figure 29-1. ADC overview
8074B–AVR–02/12
ADC15
ADC0
ADC0
ADC7
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•
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Internal
signals
The ADC may be configured for 8- or 12-bit result, reducing the minimum conversion time (prop-
agation delay) from 3.35µs for 12-bit to 2.3µs for 8-bit result.
ADC conversion results are provided left- or right adjusted with optional ‘1’ or ‘0’ padding. This
eases calculation when the result is represented as a signed integer (signed 16-bit number).
PORTB has one ADC. Notation of this peripheral is ADCB.
Internal VCC/1.6V
Internal VCC/2
Internal 1.00V
AREFA
AREFB
V
V
INP
INN
Reference
Voltage
ADC
CH0 Result
Compare
Register
<
>
XMEGA B3
Threshold
(Int Req)
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