
Rev.2.00
Jul 27, 2004
page 155 of 159
REJ03B0091-0200Z
4524 Group
Symbol
VDD
VIA
f(XIN)
Parameter
Supply voltage
Analog input voltage
Oscillation frequency
A/D CONVERTER CHARACTERISTICS
(Ta = –20 °C to 85 °C, unless otherwise noted)
Conditions
Unit
V
MHz
Ta = 25 °C
Ta = –20 to 85 °C
VDD = 2.7 to 5.5 V
Min.
2.7
3
0
0.8
0.4
0.2
0.1
Typ.
Max.
5.5
VDD
Limits
Symbol
–
V0T
VFST
IADD
TCONV
–
Parameter
Resolution
Linearity error
Differential non-linearity error
Zero transition voltage
Full-scale transition voltage
A/D operating current
(Note 1)
A/D conversion time
Comparator resolution
Comparator error (Note 2)
Comparator comparison time
Test conditions
Unit
Ta = 25 °C, VDD = 2.7 V to 5.5 V
Ta = –20 °C to 85 ° C, VDD = 3 V to 5.5 V
Ta = 25 °C, VDD = 2.7 V to 5.5 V
Ta = –20 °C to 85 ° C, VDD = 3 V to 5.5 V
VDD = 5.12 V
VDD = 3.072 V
VDD = 5.12 V
VDD = 3.072 V
VDD = 5 V
VDD = 3 V
f(XIN) = 6 MHz
VDD = 5.12 V
VDD = 3.072 V
f(XIN) = 6 MHz
Min.
0
5110
3063
Typ.
10
6
5120
3069
0.3
0.1
Max.
10
±2
±0.9
20
12
5130
3075
0.9
0.3
248
124
62
31
8
±20
±15
32
16
8
4
Limits
Notes 1: When the A/D converter is used, IADD is added to IDD (supply current).
2: As for the error from the ideal value in the comparator mode, when the contents of the comparator register is n, the logic value of the comparison
voltage Vref which is generated by the built-in DA converter can be obtained by the following formula.
Logic value of comparison voltage Vref
Vref =
n
n = Value of register AD (n = 0 to 255)
VDD
256
f(STCK) = f(XIN)/8
f(STCK) = f(XIN)/4
f(STCK) = f(XIN)/2
f(STCK) = f(XIN)
bits
LSB
mV
mA
s
bits
mV
s
f(STCK) = f(XIN)/8
f(STCK) = f(XIN)/4
f(STCK) = f(XIN)/2
f(STCK) = f(XIN)
f(STCK) = f(XIN)/8
f(STCK) = f(XIN)/4
f(STCK) = f(XIN)/2
f(STCK) = f(XIN)
A/D CONVERTER RECOMMENDED OPERATING CONDITIONS
(Comparator mode selected, Ta = –20 °C to 85 °C, unless otherwise noted)