7470 Datasheet, PDF (45/47 Pages) Renesas Technology Corp – SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER

MITSUBISHI MICROCOMPUTERS
7470/7471 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
A-D CONVERTER CHARACTERISTICS
(VCC = 2.7 to 5.5 V, VSS =AVSS= 0 V, Ta = –20 to 85°C, f(XIN) = 4 MHz, unless otherwise noted)
Symbol
–
–
–
VOT
Parameter
Resolution
Non-linearity error
Differential non-linearity error
Zero transition error
VFST
Full-scale transition error
tCONV
VREF
RLADDER
VIA
Conversion time
Reference input voltage
Ladder resistance value
Analog input voltage
Test Conditions
Min.
VCC = VREF = 5.12 V, IOL(sum) = 0 mA
VCC = VREF = 3.072 V, IOL(sum) = 0 mA
VCC = VREF = 5.12 V
VCC = VREF = 3.072 V
VCC = 2.7 to 5.5 V, f(XIN) = 4 MHz
VCC = 4.5 to 5.5 V, f(XIN) = 8 MHz
0.5VCC
2
0
Limits
Typ.
5
Unit
Max.
8 bits
±2 LSB
±0.9 LSB
2
LSB
3
4
LSB
7
25 _µs
12.5
VCC
V
10 kΩ
VREF
V
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