A/D Converter - NEC mPD75512 Datasheet

6.9

A/D CONVERTER

The µ PD75512 is provided with an 8-bit resolution analog-to-digital (A/D) converter with eight channels of
analog inputs (AN0-AN7).
This A/D converter is of a successive approximation type.
AN0
AN1
AN2
AN3
AN4
AN5
AN6
AN7
AV
REF
AV
SS
30
8
0
ADM6 ADM5 ADM4 SOC
Sample hold circuit
Tap decoder
R/2 R R
Fig. 6-10 Block Diagram of A/D Converter
Internal bus
ADM1 0 ADM
EOC
Control circuit
+
–
Comparator
R R/2
µ PD75512
8
SA register (8)
8