ATMEGA128-16AU SL383 Atmel, ATMEGA128-16AU SL383 Datasheet - Page 231

• Manufacturer Part Number: ATMEGA128-16AU SL383
• Manufacturer: Atmel

Figure 108. Analog to Digital Converter Block Schematic
2467S–AVR–07/09
AGND
AREF
ADC7
ADC6
ADC5
ADC4
ADC3
ADC2
ADC1
ADC0
AVCC
INTERNAL 2.56V
REFERENCE
REFERENCE
8-BIT DATA BUS
BANDGAP
INPUT
INPUT
POS.
NEG.
MUX
MUX
ADC MULTIPLEXER
SELECT (ADMUX)
MUX DECODER
+
-
SINGLE ENDED / DIFFERENTIAL SELECTION
GAIN
AMPLIFIER
10-BIT DAC
ADC CTRL. & STATUS
REGISTER (ADCSRA)
ADC CONVERSION
COMPLETE IRQ
PRESCALER
CONVERSION LOGIC
15
SAMPLE & HOLD
COMPARATOR
ADC DATA REGISTER
+
-
(ADCH/ADCL)
ADC MULTIPLEXER
OUTPUT
ATmega128
0
231