CXP83508 Datasheet, PDF (25/30 Pages) Sony Corporation – CMOS 8-bit Single Chip Microcomputer

CXP83508/83512/83516, CXP83509/83513/83517
(3) A/D converter characteristics
(Ta = –20 to +75°C, VDD = 4.5 to 5.5V, Vss = 0V)
Item
Symbol Pin
Conditions
Resolution
Linearity error
Zero transition
voltage
Full-scale transition
voltage
VZT^∗1
VFT^∗2
Ta = 25°C
VDD = 5.0V
VSS = 0V
Conversion time
tCONV
Sampling time
tSAMP
Analog input voltage VIAN AN0 to AN7
Min.
Typ.
–10
4910
31/fADC^∗3
10/fADC^∗3
0
10
4970
Max. Unit
8
Bits
±3
LSB
70
mV
5030 mV
µs
µs
VDD
V
(Ta = –20 to +75°C, VDD = 2.7 to 3.3V, Vss = 0V)
Item
Symbol Pin
Conditions
Resolution
Linearity error
Zero transition
voltage
Full-scale transition
voltage
VZT^∗1
VFT^∗2
Ta = 25°C
VDD = 2.7V
VSS = 0V
Conversion time
tCONV
Sampling time
tSAMP
Analog input voltage VIAN AN0 to AN7
Min.
Typ.
–10
2651
31/fADC^∗3
10/fADC^∗3
0
11
2688
Max. Unit
8
Bits
±3
LSB
40
mV
2716 mV
µs
µs
VDD
V
FFh
FEh
01h
00h
VZT
Linearity error
∗1 _{VZT: Value at which the digital conversion value changes}
from 00h to 01h and vice versa.
∗2 _{VFT: Value at which the digital conversion value changes}
from FEh to FFh and vice versa.
∗3 _{fADC = fc/4}
VFT
Analog input
Fig. 6. Definition of A/D converter terms
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