M32C8A Datasheet, PDF (322/372 Pages) Renesas Technology Corp – RENESAS MCU M16C FAMILY / M32C/80 Series

M32C/8A Group
23. Electrical Characteristics
VCC1 = VCC2 = 5V
Table 23.8
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
Measurement Condition
Standard
Unit
Min. Typ. Max.
−
Resolution
VREF = VCC1
10 Bits
INL
Integral nonlinearity error VREF = VCC1
AN_0 to AN_7,
= VCC2 = 5 V
AN15_0 to AN15_7,
ANEX0, ANEX1
±3 LSB
External op-amp
connection mode
±7 LSB
DNL
Differential nonlinearity
error
±1 LSB
−
Offset error
±3 LSB
−
Gain error
±3 LSB
RLADDER Resistor ladder
VREF = VCC1
8
40 kΩ
tCONV
10-bit conversion time⁽¹⁾⁽²⁾
2.06
μs
tCONV
8-bit conversion time⁽¹⁾⁽²⁾
1.75
μs
tSAMP
Sampling time⁽¹⁾
0.188
μs
VREF
Reference voltage
2
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 less.
2. With using the sample and hold function
Table 23.9
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)
Rev.1.00 Jul 15, 2007 Page 305 of 352
REJ09B0385-0100