RX64M_15 Datasheet, PDF (208/230 Pages) Renesas Technology Corp – Renesas MCUs

RX64M Group
5.5 A/D Conversion Characteristics
5. Electrical Characteristics
Table 5.45 12-Bit A/D (Unit 0) Conversion Characteristics
Conditions: VCC = AVCC0 = AVCC1 = VCC_USB = V_BATT = 2.7 to 3.6 V, 2.7 ≤ VREFH0 ≤ AVCC0,
VCC_USBA = AVCC_USBA = 3.0 to 3.6 V,
VSS = AVSS0 = AVSS1 = VREFL0 = VSS_USB = VSS1_USBA = VSS2_USBA = PVSS_USBA = AVSS_USBA = 0 V,
PCLKB = PCLKC = 1 MHz to 60 MHz, T_a = T_opr
Item
Resolution
Analog input capacitance
Channel-dedicated
sample-and-hold
circuits in use
(AN000 to AN002)
Conversion time*¹
(Operation at PCLK = 60 MHz)
Permissible signal source impedance
(max.) = 1.0 kΩ
Offset error
Full-scale error
Min.
8
—
1.06
(0.40 + 0.25)
*²
—
—
Quantization error
—
Absolute accuracy
—
DNL differential nonlinearity error
—
INL integral nonlinearity error
—
Holding characteristics of sample-and-
—
hold circuits
Dynamic range
0.25
Channel-dedicated
sample-and-hold
circuits not in use
(AN000 to AN007)
Conversion time*¹
(Operation at PCLK = 60 MHz)
Permissible signal source impedance
(max.) = 1.0 kΩ
Offset error
Full-scale error
Quantization error
Absolute accuracy
DNL differential nonlinearity error
INL integral nonlinearity error
0.48
(0.267)
*²
—
—
—
—
—
—
Typ. Max. Unit
Test Conditions
—
12
Bit
—
30
pF
—
—
μs  Sampling of channel-
dedicated sample-and-
hold circuits in 24 states
 Sampling in 15 states
±1.5 ±3.5 LSB AN000 to AN002 = 0.25 V
±1.5 ±3.5 LSB AN000 to AN002 = VREFH0
- 0.25 V
±0.5
—
LSB
±2.5 ±5.5 LSB
±1.0 ±2.0 LSB
±1.5 ±3.0 LSB
—
20
μs
— VREFH V
0–
0.25
—
—
μs Sampling in 16 states
±1.0 ±2.5 LSB
±1.0 ±2.5 LSB
±0.5
—
LSB
±2.0 ±4.5 LSB
±0.5 ±1.5 LSB
±1.0 ±2.5 LSB
Note:
Note 1.
Note 2.
The above specification values apply when there is no access to the external bus during A/D conversion. If access proceeds
during A/D conversion, values may not fall within the above ranges.
The conversion time includes 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.
R01DS0173EJ0100 Rev.1.00
Jul 31, 2014
Page 208 of 230