Datasheet

RX610 Group 5. Electrical Characteristics
R01DS0097EJ0120 Rev.1.20 Page 78 of 84
Feb 20, 2013
5.4 A/D Conversion Characteristics
Table 5.9 A/D Conversion Characteristics
Conditions: V
CC
= PLLV
CC
= AV
CC
= 3.0 to 3.6 V, V
REFH
= 3.0 V to AV
CC
, V
SS
= PLLV
SS
= V
REFL
= 0 V, PCLK = 8 to 50 MHz,
ADCLK
= 4 to 50 MHz
T
a
= -20 to +85°C (regular specifications), T
a
= -40 to +85°C (wide-range specifications)
Item
Min.
Typ.
Max.
Unit
Test Conditions
Resolution 10 10 10 Bit
Conversion
time*
1
(ADCLK =
50-MHz
operation)
With
0.1-µF
external
capacitor
When the capacitor is charged
enough*
2
0.8 (0.3)*
3
  μs
Sampling 15
states
Without
external
capacitor
Permissible signal source
impedance (max.) = 1.0 kΩ
1.0 (0.5)*
3
 
Sampling 25
states
Permissible signal source
impedance (max.) = 5.0 kΩ
2.6 (2.1)*
3
 
Sampling 105
states
Analog input capacitance   6.0 pF
INL integral nonlinearity error (INL)  ±1.5 ±3.0 LSB
Offset error  ±1.5 ±3.0 LSB
Full-scale error  ±1.5 ±3.0 LSB
Quantization error  ±0.5  LSB
Absolute accuracy  ±1.5 ±3.0 LSB
DNL differential nonlinearity error (DNL)  ±0.5 ±1.0 LSB
Notes: 1. The conversion time includes the sampling time and the comparison time. As the test conditions, the number of sampling states
is indicated.
2. The scanning is not supported.
3. The value in parentheses indicates the sampling time.
5.5 D/A Conversion Characteristics
Table 5.10 D/A Conversion Characteristics
Conditions: V
CC
= PLLV
CC
= AV
CC
= 3.0 to 3.6 V, V
REFH
= 3.0 V to AV
CC
, V
SS
= PLLV
SS
= V
REFL
= 0 V, PCLK = 8 to 50 MHz
T
a
= -20 to +85°C (regular specifications), T
a
= -40 to +85°C (wide-range specifications)
Item
Min.
Typ.
Max.
Unit
Test Conditions
Resolution 10 10 10 Bit
Conversion time   3 μs
20-pF capacitive load
Absolute accuracy  ±2.0 ±4.0 LSB
2-MΩ resistive load
  ±3.0 LSB
4-MΩ resistive load
  ±2.0 LSB
10-MΩ resistive load
RO output resistance  3.6  kΩ