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EM78P312N
8-Bit Microcontroller
Product Specification
(V1.0) 10.03.2006 • 61
(This specification is subject to change without further notice)
A/D Converter Characteristic (Vdd =2.5V to 5.5V, Vss=0V, Ta = -40 to 85°C)
Symbol Parameter Condition Min. Typ. Max. Unit
VAREF 2.5 − VDD V
VASS
Analog reference voltage VAREF - VASS≧2.5V
Vss − Vss V
VAI Analog input voltage
−
VASS − VAREF V
IVDD 750 850 1000 μA
IAI1
Ivref
Analog supply current
V
DD =VAREF=5.0V, VASS =0.0V
(V reference from V
DD)
-10 0 +10 μA
IVDD 500 600 820 μA
IAI2
IVref
Analog supply current
V
DD =VAREF=5.0V, VASS =0.0V
(V reference from VREF)
200 250 300 μA
RN Resolution VDD =VAREF=5.0V, VASS =0.0V 9 10 − Bits
LN Linearity error VDD = 2.5 to 5.5V Ta=25°C 0 ±1 ±2 LSB
DNL
Differential nonlinear
error
VDD = 2.5 to 5.5V Ta=25°C 0 ±0.5 ±0.9 LSB
FSE Full scale error VDD =VAREF=5.0V, VASS =0.0V ±0 ±1 ±2 LSB
OE Offset error VDD =VAREF=5.0V, VASS =0.0V ±0 ±0.5 ±1 LSB
ZAI
Recommended
impedance of analog
voltage source
− 0 8 10 K
TAD A/D clock period VDD =VAREF=5.0V, VASS =0.0V 4 − − μs
TCN A/D conversion time VDD =VAREF=5.0V, VASS =0.0V 14 − 14 TAD
ADIV A/D input voltage range VDD =VAREF=5.0V, VASS =0.0V 0 − VAREF V
0 0.2 0.3
ADOV A/D output voltage swing
V
DD =VAREF=5.0V, VASS =0.0V,
RL=10K
4.7 4.8 5
V
PSR Power Supply Rejection VDD =5.0V±0.5V ±0 ±2 LSB