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(5) A/D converter characteristics
Item
Resolution
Linearity error
Zero transition
voltage
Full-scale transition
voltage
Conversion time
Sampling time
Analog input voltage
Fig. 8. Definitions for A/D converter terms
FF
H
FE
H
01
H
00
H
V
ZT
Symbol
Pin
ZT 1
V
FT 2
V
t
CONV
t
SAMP
AN0 to AN3
V
IAN
Linearity error
V
FT
Analog input
(Ta = –10 to +75°C, V
Condition
Ta = 25°C
V
= 5.0V
DD
Vss = 0V
160/f
12/f
1
V
: Digital conversion values change between 00
ZT
2
V
: Digital conversion values change between 0E
FT
3
f
indicates the below values due to the bit6 (CKS) of A/D
ADC
control registor (address: 00F6
Bit 6 (PCK0) of clock control registor (address: 00FE
CKS
PCK1, 0
00 ( = f
/2)
EX
01 ( = f
/4)
EX
11 ( = f
/16)
EX
– 15 –
= 4.5 to 5.5V, Vss = 0V)
DD
Min.
Typ.
–10
10
4910
4970
ADC 3
ADC 3
0
) and the Bit 7 (PCK1) and
H
0 ( /2 selection) 1 ( /2 selection)
f
= f
/2
ADC
C
f
= f
/4
f
ADC
C
f
= f
/16
f
ADC
C
CXP854P60
Max.
Unit
8
Bits
±1
LSB
70
mV
5030
mV
µs
µs
V
V
DD
01
.
H
H
0F
.
H
H
)
H
f
= f
ADC
C
= f
/2
ADC
C
= f
/8
ADC
C
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