LC88F40H0PA Datasheet, PDF (24/32 Pages) Sanyo Semicon Device – For Car Audio Systems 16-bit ETR Microcontroller

LC88F40H0PA/H0PAU/F0PA/F0PAU/D0PA/D0PAU
AD Converter Characteristics at Ta = -40°C to +85°C, VSS1 = VSS2 = VSS3 = VSS4 = 0V
1. 12-bit AD Conversion Mode
Parameter
Symbol
Applicable Pin
/Remarks
Conditions
VDDCPU[V]
min
Resolution
NAD
AN0(P60)
3.0 to 3.6
Absolute accuracy
Conversion time
Analog input
voltage range
ETAD
TCAD12
VAIN
to AN7(P67),
AN8(P70)
to AN12(P74)
(Note 6-1)
Conversion time calculated
3.0 to 3.6
3.0 to 3.6
3.0 to 3.6
102
VSS
Analog port
input current
IAINH
IAINL
VAIN=VDDCPU
VAIN=VSS
3.0 to 3.6
3.0 to 3.6
-1
Conversion time calculation formula: TCAD12= ((52/(AD division ratio))+2) × tCYC
Specification
typ
max
unit
12
bit
±16 LSB
μs
VDDCPU
V
1
μA
2. 8-bit AD Conversion Mode
Parameter
Symbol
Applicable Pin
/Remarks
Conditions
VDDCPU[V]
min
Resolution
NAD
AN0(P60)
3.0 to 3.6
Absolute accuracy
Conversion time
Analog input
voltage range
ETAD
TCAD8
VAIN
to AN7(P67),
AN8(P70)
to AN12(P74)
(Note 6-1)
Conversion time calculated
3.0 to 3.6
3.0 to 3.6
3.0 to 3.6
32
VSS
Analog port
input current
IAINH
IAINL
VAIN=VDDCPU
VAIN=VSS
3.0 to 3.6
3.0 to 3.6
-1
Conversion time calculation formula: TCAD8= ((32/(AD division ratio))+2) × tCYC
Specification
typ
max
unit
8
bit
±1.5 LSB
μs
VDDCPU
V
1
μA
Note 6-1: The quantization error (±1/2LSB) is excluded from the absolute accuracy.
Note 6-2: The conversion time refers to the interval from the time a conversion starting instruction is issued till the time
the complete digital value against the analog input value is loaded in the result register.
The conversion time is twice the normal value when one of the following conditions occurs:
• The first AD conversion is executed in the 12-bit AD conversion mode after a system reset.
• The first AD conversion is executed after the AD conversion mode is switched from 8-bit to 12-bit AD
conversion mode.
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