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5. Electrical Characteristics
Rev.2.41
Jan 10, 2006
REJ03B0001-0241
NOTES:
1.
Referenced to VCC1=AVCC=VREF=4.0 to 5.5V, VSS=AVSS=0V at Topr =
40 to 85°C / 40 to 125°C unless otherwise specified.
T version =
40 to 85°C, V version =40 to 125°C
2.
φAD frequency must be 12 MHz or less.
3.
When sample & hold is disabled,
φAD frequency must be 250 kHz or more, in addition to the limitation in Note 2. When sample & hold is enabled,
φAD frequency must be 1MHz or more, in addition to the limitation in Note 2. NOTES:
1.
Referenced to VCC1=VREF=4.0 to 5.5V, VSS=AVSS=0V at Topr =
40 to 85°C / 40 to 125°C unless otherwise specified. T
version =
40 to 85°C, V version =40 to 125°C
2.
This applies when using one D/A converter, with the D/A register for the unused D/A converter set to “00h”. The resistor
ladder of the A/D converter is not included. Also, when D/A register contents are not “00h”, the IVREF will flow even if Vref id
disconnected by the A/D control register.
Table 5.51
A/D Conversion Characteristics (1) Symbol
Parameter
Measuring Condition
Standard
Unit
Min.
Typ.
Max.
Resolution
VREF=VCC1
10
Bits
INL
Integral Non-Linearity
Error
10bit
VREF=
VCC1=
5V
AN0 to AN7 input,
AN0_0 to AN0_7 input,
AN2_0 to AN2_7 input,
ANEX0, ANEX1 input
±3
LSB
External operation amp
connection mode
±7
LSB
8bit
VREF=VCC1=5V
±2
LSB
Absolute Accuracy
10bit
VREF=
VCC1=
5V
AN0 to AN7 input,
AN0_0 to AN0_7 input,
AN2_0 to AN2_7 input,
ANEX0, ANEX1 input
±3
LSB
External operation amp
connection mode
±7
LSB
8bit
VREF=VCC1=5V
±2
LSB
Tolerance Level Impedance
3
k
DNL
Differential Non-Linearity Error
±1
LSB
Offset Error
±3
LSB
Gain Error
±3
LSB
RLADDER
Ladder Resistance
VREF=VCC1
10
40
k
tCONV
10-bit Conversion Time, Sample & Hold
Function Available
VREF=VCC1=5V,
φAD=12MHz
2.75
s
tCONV
8-bit Conversion Time, Sample & Hold
Function Available
VREF=VCC1=5V,
φAD=12MHz
2.33
s
tSAMP
Sampling Time
0.25
s
VREF
Reference Voltage
2.0
VCC1
V
VIA
Analog Input Voltage
0
VREF
V
Table 5.52
D/A Conversion Characteristics (1) Symbol
Parameter
Measuring Condition
Standard
Unit
Min.
Typ.
Max.
Resolution
8Bits
Absolute Accuracy
1.0
%
tSU
Setup Time
3
s
RO
Output Resistance
4
10
20
k
IVREF
Reference Power Supply Input Current
1.5
mA