FM3 MB9B500 Series - Microcontrollers - Fujitsu

MB9B500 Series
10bit A/D Converter
This chapter shows the electrical characteristics for the A/D converter.
1. Electrical characteristics for the A/D converter.
(Vcc = AVcc = 2.7V to 5.5V, Vss = AVss = 0V Ta = - 40C to + 85C)
Parameter
Pin
name Min
Value
Typ Max
Unit Remarks
Resolution - - - 10 bit
Total error - - 4.0 - + 4.0 LSB
Linearity error - - 3.5 - + 3.5 LSB
Differential linearity
error
Zero transition voltage
- - 3.0 - + 3.0 LSB
AN0
to AN15
- 1.5 + 0.5 + 3.5 LSB
AVRH = 2.7V to 5.5V
Full transition voltage
AN0
AVRH - 4.5 AVRH - 1.5 AVRH + 0.5 LSB
to AN15
Conversion time -
1.2 (*)
3.1 (*)
-
-
-
-
μs
μs
AVcc 4.5V, PCLK = 30MHz
AVcc 4.5V, PCLK = 30MHz
Power supply current
(analog + digital)
AVCC
-
-
5.7
-
11.1
15
mA
μA
A/D 3unit operation
When A/D converter is not in
operation.
Reference power
- 1.56 2.43 mA A/D 3unit operation
supply current
(between AVRH to
AVSS)
AVRH
- - 15 μA
When A/D converter is not in
operation.
Analog input capacity - - - 8.5 pF
Interchannel disparity - - - 4 LSB
Analog port input
current
AN0
to AN15
- - 5 μA
Analog input voltage
AN0
to AN15
AVSS - AVRH V
Reference voltage AVRH AVSS - AVCC V
* : Depending on the clock cycle supplied to peripheral resources.
Ensure that it satisfies the value; PCLK cycle more than 4 + the value calculated from (Equation 1).
The condition of the minimum conversion time is when PCLK = 30 MHz, the value of sampling time: 0.4μs,
external impedance: 4.1 kΩ or less and compare time: 0.8μs (AVcc 4.5V)
92
Analog signal
source
Rext
AN0 to AN15
Analog input pin
Rin
Cin
comparator
DS706-00010-1v0-E