參數(shù)資料
型號(hào): CXP921064AGA
英文描述: Microcontroller
中文描述: 微控制器
文件頁(yè)數(shù): 22/34頁(yè)
文件大?。?/td> 402K
代理商: CXP921064AGA
22
CXP921064A
Conversion time
Sampling time
Reference input
voltage
Analog input
voltage
AV
REF
current
t
CONV
t
SAMP
V
REF
V
IAN
I
REF
I
REFS
AV
REF0
AV
REF1
V
DD
= AV
DD
= AV
REF
= 3.0V
V
DD
= AV
DD
= AV
REF
Linearity error
Absolute error
Resolution
3.3
AV
REF
1.5
10
34
t
sys
9
t
sys
2.7
0
Main mode
Sub mode
Clock mode
Stop mode
during ADC off state
Item
Symbol
Pins
Conditions
Min.
Typ.
Max.
Unit
Bits
(4) A/D converter characteristics
(Topr =
20 to +75
°
C, V
DD
= AV
DD
= AV
REF
= 2.7 to 3.3V, Vss = AVss = 0V reference)
8
±1
LSB
LSB
μs
μs
V
V
mA
μA
±3
1.1
AV
REF
AN0 to AN23
Fig.6. Definition of A/D converter terms
FFh
FEh
01h
00h
Analog input
Linearity error
D
FFh
FEh
(100h)
01h
00h
Analog input
D
Absolute error
AV
REF
Absolute error
V
ZT
1
V
FT
2
1
V
ZT
: Value at which the digital conversion value changes from 00h to 01h and vice versa.
2
V
FT
: Value at which the digital conversion value changes from FEh to FFh and vice versa.
When Bit 14 (ADOFF) of A/D control status register (ADCS0: 00013Ch,ADCS1: 00014Ch) is specified to "1".
Note)
AV
DD
and AV
REF
must be the same voltage with V
DD
.
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