参数资料
型号: MB91108PFV
元件分类: 微控制器/微处理器
英文描述: 32-BIT, 50 MHz, RISC MICROCONTROLLER, PQFP120
封装: PLASTIC, LQFP-120
文件页数: 87/96页
文件大小: 1342K
代理商: MB91108PFV
MB91107/108
88
5.
A/D Converter Block Electrical Characteristics
(AVCC
= VCC = +3.0 V to +3.6 V, AVSS = VSS = 0.0 V, AVRH = +3.0 V to +3.6 V, TA = 0 °C to +70 °C)
*1: AVCC = VCC = 3.0 V to 3.6 V(for a machine clock of 25 MHz).
*2: Current value for A/D converters not in operation, CPU stop mode (VCC = AVCC = AVRH = 3.6 V)
Notes: As the absolute value of AVRH decreases, relative error increases.
Output impedance of external circuit of analog input under following conditions;
Output impedance of external circuit < 7 k
.
If output impedance of external circuit is too high, analog voltage sampling time may be too short for
accurate sampling.
Parameter
Symbol
Pin name
Value
Unit
Min.
Typ.
Max.
Resolution
10
bit
Total error
±4.0
LSB
Linearity error
±3.0
LSB
Differentiation linearity error
±2.5
LSB
Zero transition voltage
VOT
AN0 to AN3
1.5
+0.5
+2.5
LSB
Full-scale transition voltage
VFST
AN0 to AN3
AVRH
4.5
AVRH
1.5
AVRH
+ 0.5
LSB
Conversion time
5.6*1
s
Analog port input current
IAIN
AN0 to AN3
0.1
10
A
Analog input voltage
VAIN
AN0 to AN3
AVSS
AVRH
V
Reference voltage
AVRH
AVSS
AVCC
V
Power supply current
IA
AVCC
500
A
IAH
5*2
A
Reference voltage supply
current
IR
AVRH
500
A
IRH
5*2
A
Conversion variance between
channels
AN0 to AN3
4LSB
Analog input circuit model plan
RON1 : 5 k
RON2 : 620
RON3 : 620
RON4 : 480
C0 : 2 pF
C1 : 2 pF
RON1
RON2
RON3
RON4
C0
C1
Sample and hold circuit
Analog input
Comparator
Note: Listed values are for reference purposes only.
RONX, CX are preliminary value.
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