RX113_15 Datasheet, PDF (95/121 Pages) Renesas Technology Corp – Renesas MCUs

RX113 Group
5. Electrical Characteristics
5.5 A/D Conversion Characteristics
Table 5.37 A/D Conversion Characteristics (1)
Conditions: VCC = AVCC0 = VREFH0 = 2.7 to 3.6 V, VSS = AVSS0 = VREFL0 = VSS_USB = 0 V, T_a = –40 to +105°C
Item
Min.
Typ.
Max.
Unit
Test Conditions
Frequency
4
—
32
MHz
Resolution
—
—
12
Bit
Conversion time*¹
Permissible signal
1.031
—
—
μs
High-precision channel
(Operation at
source impedance
(0.313)*²
ADCSR.ADHSC bit = 1
PCLKD = 32 MHz)
(Max.) = 0.3 kΩ
ADSSTRn.SST[7:0] bits = 09h
1.375
—
—
μs
Normal-precision channel
(0.641)*²
ADCSR.ADHSC bit = 1
ADSSTRn.SST[7:0] bits = 14h
Offset error
—
±0.5
±4.5
LSB High-precision channel
PJ6PFS.ASEL bit = 1
PJ7PFS.ASEL bit = 1
±6.0
LSB Other than above
Full-scale error
—
±0.75
±4.5
LSB High-precision channel
PJ6PFS.ASEL bit = 1
PJ7PFS.ASEL bit = 1
±6.0
LSB Other than above
Quantization error
—
±0.5
—
LSB
Absolute accuracy
—
±1.25
±5.0
LSB High-precision channel
PJ6PFS.ASEL bit = 1
PJ7PFS.ASEL bit = 1
±8.0
LSB Other than above
DNL differential nonlinearity error
—
±1.0
—
LSB
INL integral nonlinearity error
—
±1.0
±3.0
LSB
Note:
Note 1.
Note 2.
The characteristics apply when no pin functions other than A/D converter input are used. Absolute accuracy includes
quantization errors. Offset error, full-scale error, DNL differential nonlinearity error, and INL integral nonlinearity error do not
include quantization errors.
The conversion time is the sum of the sampling time and the comparison time. As the test conditions, the number of sampling
states is indicated.
The value in parentheses indicates the sampling time.
AVREFH0
5.0
4.0
3.6
3.0
2.7
2.4
2.0
1.8
1.0
1.8 2.4 2.7 3.6
1.0
2.0
3.0
4.0
Figure 5.56 AVCC0 to AVREFH0 Voltage Range
Characteristics listed in
Table 5.37
A/D Conversion
Characteristics (1)
Characteristics listed in
Table 5.38
A/D Conversion
Characteristics (2)
Characteristics listed in
Table 5.39
A/D Conversion
Characteristics (3)
5.0 ^AVCC0
R01DS0216EJ0102 Rev.1.02
Dec 01, 2014
Page 95 of 121