MB91470/480 Series
80
6.
Electrical Characteristics for the A/D Converter
(1) 8/10-bit A/D Converter
(VCC
= 4.0 V to 5.5 V, AVRHn = 4.0 V to 5.5 V, VSS = AVSS10 = 0 V, TA = 40 °C to + 85 °C)
*1 : When VCC
= AVCC10 = 5.0 V and peripheral clock = 33 MHz
*2 : The current when the CPU is in stop mode and the A/D converter is not operating (at VCC
= AVCC10 =
AVRHn
= 5.0 V) .
Notes :
The above figures do not guarantee the accuracy between each unit.
Output impedance of the external circuit ≤ 2 k.
AVRHn = AVRH0, AVRH1, and AVRH2
Parameter
Sym-
bol
Pin Name
Value
Unit
Remarks
Min
Typ
Max
Resolution
10
bit
Total error
4
+ 4LSB
When AVRHn
=
5.0 V
Linearity error
3.5
+ 3.5
LSB
Differential
linearity error
3
+ 3LSB
Zero transition
voltage
VOT
AN0-0 to AN0-3
AN1-0 to AN1-3
AN2-0 to AN2-11
AVSS10
3.5 AVSS10+0.5 AVSS10+4.5 LSB
Full-scale
transition voltage
VFST
AN0-0 to AN0-3
AN1-0 to AN1-3
AN2-0 to AN2-11
AVRHn
5.5 AVRHn1.5 AVRHn+2.5 LSB
Conversion time*1
1.2
s
Analog port input
current
IAIN
AN0-0 to AN0-3
AN1-0 to AN1-3
AN2-0 to AN2-11
10
A
Analog input
voltage
VAIN
AN0-0 to AN0-3
AN1-0 to AN1-3
AN2-0 to AN2-11
AVSS10
AVRHn
V
Reference voltage
AVRHn
AVSS10
AVCC10
V
Power supply
current
(Analog
+ digital)
IA
AVCC10
2
mA
For each 1 unit
IAH*2
AVCC10
5
A
Reference voltage
supply current
(between AVRH
and AVSS)
IR
AVRHn
1
mA
For each 1 unit,
at AVRHn
= 5.0 V
AVSS10
= 0 V
IRH*2
AVRHn
5
A
For each 1 unit,
at stop mode
Analog input
capacitance
12.5
pF
Interchannel
disparity
AN0-0 to AN0-3
AN1-0 to AN1-3
AN2-0 to AN2-11
4LSB