Z8F4822AR020SG Datasheet, PDF (182/323 Pages) Zilog, Inc. – High Performance 8-Bit Microcontrollers

Z8 Encore! XP^® F64xx Series
Product Specification
162
Internal Voltage
Reference Generator
Analog-to-Digital
Converter
Reference Input
Analog Input
Analog Input
Multiplexer
V_REF
ANA0
ANA1
ANA2
ANA3
ANA4
ANA5
ANA6
ANA7
ANA8
ANA9
ANA10
ANA11
ANAIN[3:0]
Figure 34. Analog-to-Digital Converter Block Diagram
The sigma-delta ADC architecture provides alias and image attenuation below the ampli-
tude resolution of the ADC in the frequency range of DC to one-half the ADC clock rate
(one-fourth the system clock rate). The ADC provides alias free conversion for frequen-
cies up to one-half the ADC clock rate. Therefore, the sigma-delta ADC exhibits high
noise immunity, which makes it ideal for embedded applications. In addition, monotonic-
ity (no missing codes) is guaranteed by design.
PS019924-0113
PRELIMINARY
Architecture