S128 Datasheet, PDF (78/107 Pages) Renesas Technology Corp – Microcontroller

S128
2. Electrical Characteristics
Table 2.41 A/D conversion characteristics (1) in high-speed A/D conversion mode (2 of 2)
Conditions: VCC = AVCC0 = 4.5 to 5.5 V, VREFH0 = 4.5 to 5.5 V, VSS = AVSS0 = VREFL0 = 0V
Reference voltage range applied to the VREFH0 and VREFL0.
Parameter
Min
Typ
Max
Unit
Test Conditions
Offset error
-
±2.0
±18
LSB
High-precision channel
±24.0
LSB
Other than above
Full-scale error
-
±3.0
±18
LSB
High-precision channel
±24.0
LSB
Other than above
Quantization error
-
±0.5
-
LSB
-
Absolute accuracy
-
±5.0
±20
LSB
High-precision channel
±32.0
LSB
Other than above
DNL differential nonlinearity error
-
±4.0
-
LSB
-
INL integral nonlinearity error
-
±4.0
±12.0
LSB
-
Note: The characteristics apply when no pin functions other than 14-bit A/D converter input are used. Absolute
accuracy does not include quantization errors. Offset error, full-scale error, DNL differential nonlinearity error,
and INL integral nonlinearity error do not include quantization errors.
Note 1. The conversion time is the sum of the sampling time and the comparison time. The number of sampling states is
indicated for the test conditions.
Table 2.42 A/D conversion characteristics (2) in high-speed A/D conversion mode (1 of 2)
Conditions: VCC = AVCC0 = 2.7 to 5.5 V, VREFH0 = 2.7 to 5.5 V, VSS = AVSS0 = VREFL0 = 0V
Reference voltage range applied to the VREFH0 and VREFL0.
Parameter
Min
Typ
Max
Unit
Test Conditions
Frequency
1
-
48
MHz
-
Analog input capacitance
Cs
-
-
15
pF
High-precision channel
-
-
30
pF
Normal-precision channel
Analog input resistance
Rs
-
-
2.5
kΩ
-
Analog input voltage range
Ain
0
-
VREFH0 V
-
12-bit mode
Resolution
-
-
12
Bit
-
Conversion time*¹
Permissible signal
0.94
-
-
(Operation at
source impedance
PCLKD = 48 MHz)
Max. = 0.3 kΩ
μs
High-precision channel
ADCSR.ADHSC = 0
ADSSTRn.SST[7:0] = 0Dh
1.50
-
-
μs
Normal-precision channel
ADCSR.ADHSC = 0
ADSSTRn.SST[7:0] = 28h
Offset error
-
±0.5
±4.5
LSB
High-precision channel
±6.0
LSB
Other than above
Full-scale error
-
±0.75
±4.5
LSB
High-precision channel
±6.0
LSB
Other than above
Quantization error
-
±0.5
-
LSB
-
Absolute accuracy
-
±1.25
±5.0
LSB
High-precision channel
±8.0
LSB
Other than above
DNL differential nonlinearity error
-
±1.0
-
LSB
-
INL integral nonlinearity error
-
±1.0
±3.0
LSB
-
14-bit mode
Resolution
-
-
14
Bit
-
Conversion time*¹
Permissible signal
1.06
-
-
(Operation at
source impedance
PCLKD = 48 MHz)
Max. = 0.3 kΩ
μs
High-precision channel
ADCSR.ADHSC = 0
ADSSTRn.SST[7:0] = 0Dh
1.63
-
-
μs
Normal-precision channel
ADCSR.ADHSC = 0
ADSSTRn.SST[7:0] = 28h
R01DS0309EU0100 Rev.1.00
Mar 10, 2017
Page 78 of 107