EM78P350N
8-Bit Microprocessor with OTP ROM
8.1 AD Converter Characteristic
Vdd=2.5V to 5.5V, Vss=0V, Ta=25°C
Symbol
VAREF
VASS
Parameter
Condition
VAREF - VASS ≥ 2.3V
−
Min.
2.3
Typ.
−
Max.
Vdd
Vss
Unit
V
Analog reference voltage
Analog input voltage
Analog supply current
Vss
VASS
750
-10
−
V
VAI
−
VAREF
1000
+10
V
Ivdd
IAI1
850
0
uA
uA
uA
uA
Vdd=VAREF=5.0V, VASS =0.0V
(V reference from Vdd)
Ivref
Ivdd
IAI2
500
200
600
250
820
Vdd=VAREF=5.0V, VASS =0.0V
(V reference from VREF)
Analog supply current
OP current
IVref
300
Vdd=5.0V, OP used
Output voltage swing 0.15V
to 4.85V
IOP
450
550
650
uA
RN
LN
Resolution
Vdd=VAREF=5.0V, VASS =0.0V
Vdd = 2.3 to 5.5V Ta=25℃
Vdd = 2.3 to 5.5V Ta=25℃
Vdd=VAREF=5.0V, VASS =0.0V
Vdd=VAREF=5.0V, VASS =0.0V
10
0
11
±4
−
±8
Bits
LSB
LSB
LSB
LSB
Linearity error
DNL
FSE
OE
Differential nonlinear error
Full scale error
Offset error
0
±0.5
±4
±0.9
±8
±0
±0
±2
±4
Recommended impedance
of analog voltage source
ZAI
−
0
8
10
KΩ
TAD
TCN
ADIV
ADC clock duration
AD conversion time
Vdd=VAREF=5.0V, VASS =0.0V
Vdd=VAREF=5.0V, VASS =0.0V
4
15
0
−
−
−
15
us
TAD
V
ADC OP input voltage range Vdd=VAREF=5.0V, VASS =0.0V
−
VAREF
0.3
5
0
0.2
4.8
0.3
−
ADC OP output voltage
swing
Vdd=VAREF=5.0V,
ASS =0.0V, RL=10KΩ
ADOV
V
V
4.7
0.1
±0
ADSR
PSR
ADC OP slew rate
Vdd=VAREF=5.0V, VASS =0.0V
Vdd=5.0V±0.5V
−
V/us
LSB
Power Supply Rejection
±2
Note: 1. These parameters are hypothetical (not tested) and are provided for design reference use only.
2. There is no current consumption when ADC is off other than minor leakage current.
3. AD conversion result will not decrease when an increase of input voltage and no missing code will result.
4. These parameters are subject to change without further notice.
8.2 Comparator (OP) Characteristic
Vdd = 5.0V, Vss=0V, Ta=25°C
Symbol
SR
Parameter
Slew rate
Condition
−
Vdd =5.0V, VSS =0.0V
Min.
0.1
0
Typ.
Max.
Unit
V/us
V
0.2
IVR
Input voltage range
5
0.3
5
0
0.2
4.8
Vd =5.0V, VSS =0.0V,
OVS
Output voltage swing
V
RL=10KΩ
4.7
250
−
Iop
Ico
Supply current of OP
−
−
350
300
500
−
µA
µA
Supply current of Comparator
Power-supply Rejection
Ration for OP
PSRR
Vs
Vdd= 5.0V, VSS =0.0V
50
60
70
dB
V
Operating range
−
2.5
−
5.5
Note: 1. These parameters are hypothetical (not tested) and are provided for design reference use only.
2. These parameters are subject to change without further notice.
92 •
Product Specification (V1.0) 09.14.2006
(This specification is subject to change without further notice)
ELAN [ ELAN MICROELECTRONICS CORP ]
