3886 Group User’s Manual
APPENDIX
3-7
3.1 Electrical characteristics
3.1.4 A-D converter characteristics
bit
LSB
2tc(XIN)
k
A
Resolution
Absolute accuracy (excluding quantization error)
Conversion time
Ladder resistor
Reference power
source input current
A-D port input current
Min.
12
50
Typ.
35
150
Max.
10
±4
61
100
200
5
5.0
VCC = VREF = 5.0 V
VREF = 5.0 V
Table 3.1.7 A-D converter characteristics (1)
(VCC = 2.7 to 5.5 V, VCC = 4.0 to 5.5 V for flash memory version, VREF = 2.0 V to VCC, VSS = AVSS = 0 V, Ta = –20 to 85 °C, unless otherwise noted)
10-bit A-D mode (when conversion mode selection bit (bit 7 of address 003816) is “0”)
Unit
Limits
Parameter
–
tCONV
RLADDER
IVREF
II(AD)
Test conditions
at A-D converter operated
at A-D converter stopped
Note 1: Using one D-A converter, with the value in the D-A conversion register of the other D-A converter being “0016”.
Table 3.1.10 Comparator characteristics
(VCC = 2.7 to 5.5 V, VCC = 4.0 to 5.5 V for flash memory version, VSS = 0 V, Ta = –20 to 85 °C, unless otherwise noted)
Table 3.1.8 A-D converter characteristics (2)
(VCC = 2.7 to 5.5 V, VCC = 4.0 to 5.5 V for flash memory version, VREF = 2.0 V to VCC, VSS = AVSS = 0 V, Ta = –20 to 85 °C, unless otherwise noted)
8-bit A-D mode (when conversion mode selection bit (bit 7 of address 003816) is “1”)
Table 3.1.9 D-A converter characteristics
(VCC = 2.7 to 5.5 V, VCC = 4.0 to 5.5 V for flash memory version, VREF = 2.7 V to VCC, VSS = AVSS = 0 V, Ta = –20 to 85 °C, unless otherwise noted)
Symbol
bit
LSB
2tc(XIN)
k
A
Resolution
Absolute accuracy (excluding quantization error)
Conversion time
Ladder resistor
Reference power
source input current
A-D port input current
Min.
12
50
Typ.
35
150
Max.
8
±2
50
100
200
5
5.0
VCC = VREF = 5.0 V
VREF = 5.0 V
Unit
Limits
Parameter
–
tCONV
RLADDER
IVREF
II(AD)
Test conditions
at A-D converter operated
at A-D converter stopped
Symbol
Bits
%
s
k
mA
Resolution
Absolute accuracy
Setting time
Output resistor
Reference power source input current (Note 1)
Min.
1
Typ.
2.5
Max.
8
1.0
2.5
3
4
3.2
Unit
Limits
Parameter
–
tsu
RO
IVREF
Test conditions
VCC = 4.0 to 5.5 V
VCC = 2.7 to 4.0 V
Symbol
LSB
s
V
A
k
V
Absolute accuracy
Conversion time
Analog input voltage
Analog input current
Ladder resistor
Internal reference voltage
External reference input voltage
Min.
0
20
VCC/32
Typ.
40
29VCC
/32
Max.
1/2
2.8
3.5
7
VCC
5.0
50
VCC
Unit
Limits
Parameter
–
TCONV
VIA
IIA
RLADDER
CMPREF
Test conditions
Symbol
1LSB = VCC/16
at 10 MHz operating
at 8 MHz operating
at 4 MHz operating
3.1.5 D-A converter characteristics
3.1.6 Comparator characteristics