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