Datasheet
RL78/L12
CHAPTER 31 ELECTRICAL SPECIFICATIONS (G: TA = -40 to +105°C)
R01UH0330EJ0200 Rev.2.00 950
Dec 13, 2013
31.6 Analog Characteristics
31.6.1 A/D converter characteristics
Classification of A/D converter characteristics
Input channel
Reference Voltage
Reference voltage (+) = AVREFP
Reference voltage (−) = AVREFM
Reference voltage (+) = VDD
Reference voltage (−) = V
SS
Reference voltage (+) = V
BGR
Reference voltage (−) = AV
REFM
ANI0, ANI1
−
Refer to 31.6.1 (3). Refer to 31.6.1 (4).
ANI16 to ANI23 Refer to 31.6.1 (2).
Internal reference voltage
Temperature sensor output
voltage
Refer to 31.6.1 (1).
−
(1) When reference voltage (+) = AVREFP/ANI0 (ADREFP1 = 0, ADREFP0 = 1), reference voltage (−) = AVREFM/ANI1
(ADREFM = 1), target pin : internal reference voltage, and temperature sensor output voltage
(T
A = −40 to +105°C, 2.4 V ≤ EVDD = VDD ≤ 5.5 V, 2.4 V ≤ AVREFP ≤ VDD ≤ 5.5 V, VSS = EVSS = 0 V, Reference voltage (+)
= AV
REFP, Reference voltage (−) = AVREFM = 0 V)
Parameter Symbol Conditions MIN. TYP. MAX. Unit
Resolution RES 8 10 bit
Overall error
Note 1
AINL
10-bit resolution
AV
REFP = VDD
Note 3
2.4 V ≤ AV
REFP ≤ 5.5 V 1.2 ±3.5 LSB
Conversion time tCONV
10-bit resolution
Target pin: Internal reference
voltage, and temperature
sensor output voltage (HS
(high-speed main) mode)
3.6 V ≤ VDD ≤ 5.5 V 2.375 39
μ
s
2.7 V ≤ VDD ≤ 5.5 V
3.5625 39
μ
s
2.4 V ≤ VDD ≤ 5.5 V
17 39
μ
s
Zero-scale error
Notes 1, 2
EZS
10-bit resolution
AV
REFP = VDD
Note 3
1.8 V ≤ AV
REFP ≤ 5.5 V
±0.25 %FSR
Full-scale error
Notes 1, 2
EFS
10-bit resolution
AV
REFP = VDD
Note 3
1.8 V ≤ AV
REFP ≤ 5.5 V
±0.25 %FSR
Integral linearity error
Note 1
ILE
10-bit resolution
AV
REFP = VDD
Note 3
1.8 V ≤ AV
REFP ≤ 5.5 V
±2.5 LSB
Differential linearity error
Note 1
DLE
10-bit resolution
AV
REFP = VDD
Note 3
1.8 V ≤ AV
REFP ≤ 5.5 V
±1.5 LSB
Analog input voltage VAIN
Internal reference voltage
(2.4 V ≤ V
DD ≤ 5.5 V, HS (high-speed main) mode)
V
BGR
Note 4
V
Temperature sensor output voltage
(2.4 V ≤ V
DD ≤ 5.5 V, HS (high-speed main) mode)
V
TMPS25
Note 4
V
Notes 1. Excludes quantization error (±1/2 LSB).
2. This value is indicated as a ratio (%FSR) to the full-scale value.
3. When AV
REFP < VDD, the MAX. values are as follows.
Overall error: Add ±1.0 LSB to the MAX. value when AV
REFP = VDD.
Zero-scale error/Full-scale error: Add ±0.05%FSR to the MAX. value when AV
REFP = VDD.
Integral linearity error/ Differential linearity error: Add ±0.5 LSB to the MAX. value when AV
REFP = VDD.
4. Refer to 31.6.2 Temperature sensor/internal reference voltage characteristics.