
MB95120 Series
58
5.
A/D Converter
(1) A/D Converter Electrical Characteristics
(AVcc
= Vcc = 1.8 V to 3.3 V, AVss = Vss = 0.0 V, TA = 40 °C to + 85 °C)
Parameter
Symbol
Value
Unit
Remarks
Min
Typ
Max
Resolution
10
bit
Total error
3.0
+ 3.0
LSB
Linearity error
2.5
+ 2.5
LSB
Differential linear error
1.9
+ 1.9
LSB
Zero transition voltage
VOT
AVss
1.5 LSB AVss + 0.5 LSB AVss + 2.5 LSB
V
2.7 V
≤ AVcc ≤
3.3 V
AVss
0.5 LSB AVss + 1.5 LSB AVss + 3.5 LSB
V
1.8 V
≤ AVcc <
2.7 V
Full-scale transition
voltage
VFST
AVR
3.5 LSB AVR 1.5 LSB AVR + 0.5 LSB
V
2.7 V
≤ AVcc ≤
3.3 V
AVR
2.5 LSB AVR 0.5 LSB AVR + 1.5 LSB
V
1.8 V
≤ AVcc <
2.7 V
Compare time
0.6
140
s
2.7 V
≤ AVcc ≤
3.3 V
20
140
s
1.8 V
≤ AVcc <
2.7 V
Sampling time
0.4
∞
s
2.7 V
≤ AVcc ≤
3.3 V,
At external
impedance < 1.8 k
30
∞
s
1.8 V
≤ AVcc <
2.7 V,
At external
impedance <
14.8 k
Analog input current
IAIN
0.3
+0.3
A
Analog input voltage
VAIN
AVss
AVR
V
Reference voltage
AVss
+ 1.8
AVcc
V
AVR pin
Reference voltage
supply current
IR
400
600
A
AVR pin,
During A/D
operation
IRH
5
A
AVR pin,
At stop mode