MB89636 Fujitsu Media Devices, MB89636 Datasheet - Page 40

• Manufacturer Part Number: MB89636
• Description: (MB89630 Series) 8-bit Proprietary Microcontroller
• Manufacturer: Fujitsu Media Devices

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DataSheet
40
4
MB89630 Series
5. A/D Converter Electrical Characteristics
Precautions:
Resolution
Linearity error
Differential linearity error
Total error
Zero transition voltage
Full-scale transition
voltage
Interchannel disparity
A/D mode conversion time
Analog port input current
Analog input voltage
Reference voltage
Reference voltage
supply current
U
.com
Analog Input Circuit Model
Parameter
The smaller the | AVR–AV
The output impedance of the external circuit for the analog input must satisfy the following conditions:
Output impedance of the external circuit < Approx. 10 k
If the output impedance of the external circuit is too high, an analog voltage sampling time might be
insufficient (sampling time = 6 s at 10MHz oscillation.)
Analog input
V
V
I
I
AIN
R
Symbol
OT
FST
R
R
C
C
Note: The values mentioned here should be used as a guideline.
ON1
ON2
0
1
—
—
—
:
:
:
:
Approx. 1.5
Approx. 1.5
Approx. 60 pF
Approx. 4 pF
(AV
AN0 to
AN7
—
AN0 to
AN7
AVR
CC
Pin
—
SS
R
= V
ON1
|, the greater the error would become relatively.
CC
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AV
AVR – 3.5 LSB AVR – 1.5 LSB AVR + 0.5 LSB
= 3.5 V to 6.0 V, F
SS
Min.
– 1.5 LSB AV
0.0
0.0
—
—
—
—
—
—
—
—
R
ON2
CH
SS
= 10 MHz, AV
Value
Typ.
13.2
+ 0.5 LSB AV
200
—
—
—
—
—
—
—
—
C
1
C
0
SS
SS
= V
Max.
AV
AVR
Converter
+ 2.5 LSB
10
10
—
2.0
1.5
3.0
4
SS
CC
= 0.0 V, T
LSB
LSB
LSB
LSB
Unit
mV
mV
bit
V
V
A
A AVR = 5.0 V
A
s
= –40 C to +85 C)
At AV
At 10 MHz
oscillation
Remarks
CC
= V
CC