M32C8B_09 Datasheet, PDF (40/69 Pages) Renesas Technology Corp – RENESAS MCU

M32C/8B Group
5. Electrical Characteristics
VCC1 = VCC2 = 5V
Table 5.9
A/D Conversion Characteristics
(VCC1 = VCC2 = AVCC = VREF = 4.2 to 5.5 V, VSS = AVSS = 0 V, Topr = -20 to 85°C,
f(CPU) = 32MHz unless otherwise specified)
Symbol
Parameter
−
Resolution
Measurement Condition
VREF = VCC1
Standard
Unit
Min. Typ. Max.
10 Bits
INL
Integral nonlinearity error VREF = VCC1
AN_0 to AN_7,
= VCC2 = 5 V
AN0_0 to AN0_7,
AN2_0 to AN2_7,
AN15_0 to AN15_7,
ANEX0, ANEX1
±3 LSB
External op-amp
connection mode
±7 LSB
DNL
−
Differential nonlinearity
error
Offset error
±1 LSB
±3 LSB
−
Gain error
±3 LSB
RLADDER Resistor ladder
VREF = VCC1
tCONV
10-bit conversion time⁽¹⁾⁽²⁾
tCONV
8-bit conversion time⁽¹⁾⁽²⁾
tSAMP
Sampling time⁽¹⁾
4
2.06
1.75
0.188
20 kΩ
μs
μs
μs
VREF
Reference voltage
3
VCC1 V
VIA
Analog input voltage
0
VREF V
NOTES:
1. The value is obtained when φAD frequency is at 16 MHz. Keep φAD frequency at 16 MHz or lower.
2. With using the sample and hold function
Table 5.10
D/A Conversion Characteristics
(VCC1 = VCC2 = VREF = 4.2 to 5.5 V, VSS = AVSS = 0 V, Topr = -20 to 85°C,
f(CPU) = 32MHz unless otherwise specified)
Symbol
Parameter
Measurement Condition
Standard
Unit
Min. Typ. Max.
−
Resolution
8 Bits
−
Absolute accuracy
1.0 %
tsu
Setup time
3 μs
RO
Output resistance
4
10 20 kΩ
IVREF
Reference power supply
input current
(note 1)
1.5 mA
NOTE:
1. Measured when one D/A converter is used, and the DAi register (i = 0, 1) of the unused D/A converter is set to
00h. The current flown into the resistor ladder in the A/D converter is excluded. IVREF flows even if the VCUT
bit in the AD0CON1 register is set to 0 (VREF not connected).
REJ03B0242-0100 Rev.1.00 Nov 01, 2009
Page 40 of 67