DS07-16301-4E Datasheet, PDF (92/99 Pages) Fujitsu Component Limited. – 32-bit RISC Microcontroller CMOS FR30 Series

MB91101/MB91101A
5. A/D Converter Block Electrical Characteristics
(AVCC = 2.7 V to 3.6 V, AVSS = 0.0 V, AVRH = 2.7 V, TA = –40°C to +70°C)
Parameter
Symbol Pin name
Min
Value
Typ
Unit
Max
Resolution
—
—
—
10
10
bit
Total error
—
—
—
—
±4.0 LSB
Linearity error
—
—
—
—
±3.5 LSB
Differentiation linearity error
—
—
—
—
±2.0 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
—
—
µs
Analog port input current
IAIN AN0 to AN3
—
0.1
10
µA
Analog input voltage
VAIN AN0 to AN3
AVSS
—
AVRH
V
Reference voltage
—
AVRH
AVSS
—
AVCC
V
Power supply current
IA
AVCC
—
IAH
AVCC
—
4
—
mA
—
5 *²
µA
Reference voltage supply current
IR
AVRH
—
IRH
AVRH
—
200
—
µA
—
5 *²
µA
Conversion variance between channels
— AN0 to AN3
—
—
4
LSB
*1: AVCC = 2.7 V to 3.6 V
*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 < 10 kΩ.
If output impedance of external circuit is too high, analog voltage sampling time may be too short for
accurate sampling (sampling time is 5.6 µs for a machine clock of 25 MHz).
• Analog input circuit
Analog input
Sample and hold circuit
C0
Comparator
RON1
RON2
RON3
RON4
C1
RON1 : 0.2 kΩ
RON2 : 1.4 kΩ
RON3 : 1.4 kΩ
RON4 : 0.2 kΩ
C0 : 16.6 pF
C1 : 4.0 pF
Note: Listed values are for reference purposes only.
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