CXP973F064 View Datasheet(PDF) - Sony Semiconductor
Part Name
Description
MFG CO.
'CXP973F064' PDF : 42 Pages View PDF
CXP973F064
(4) A/D converter characteristics
(Topr = –30 to +85°C, VDD = AVDD = AVREF = 2.7 to 3.6V, Vss = AVss = 0V reference)
Item
Symbol Pins
Conditions
Min.
Resolution
Linearity error
Absolute error
VDD = AVDD = AVREF = 3.0V
Conversion time
tCONV
∗1
34tsys
62tsys
Sampling time
tSAMP
∗1
10tsys
20tsys
Reference input voltage VREF AVREF
VDD = AVDD = AVREF
2.7
Analog input voltage
AN0 to AN11
0
AVREF current
IREF
AVREF
IREFS
Main
mode
VDD = 3.3 ± 0.3V
fSRC = 40MHz
VDD = 3.3 ± 0.3V
fSRC = 20MHz
ADC off state∗2
Stop mode
Typ. Max. Unit
8 Bits
±1 LSB
±3 LSB
ns
ns
ns
ns
3.6 V
AVREF V
1.5 2.1 mA
1.2 1.7 mA
12 µA
∗1 When Bit 6 (ADCK) of A/D control status register (ADCS: 000132h) is specified to "1".
∗2 When Bit 5 (ADPC) of A/D control status register (ADCS: 000132h) is specified to "1".
Note) AVDD and AVREF must be the same voltage with VDD.
(100h)
FFh
FFh
FEh
FEh
Linearity error
Absolute error
01h
00h
VZT∗1
Analog input
VFT∗2
01h
00h
Absolute error
Analog input
∗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.
AVREF
Fig. 6. Definition of A/D converter terms
– 26 –
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