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S3C84E5/C84E9/P84E9 ELECTRICAL DATA
17-11
Table 17-11. A/D Converter Electrical Characteristics
(T
A
= – 25 °C to + 85 °C, V
DD
= V
LVR
to 5.5 V, V
SS
= 0 V)
Parameter Symbol Test Conditions Min Typ. Max Unit
Resolution
– 10 – bit
Total accuracy
V
DD
= 5.12 V
– –
± 3
LSB
Integral linearity
error
ILE CPU clock = 10 MHz
AV
REF
= 5.12 V
–
± 2
Differential
linearity error
DLE
AV
SS
= 0 V
–
± 1
Offset error of
top
EOT
± 1 ± 3
Offset error of
bottom
EOB
± 0.5 ± 2
Conversion time
(1)
tCON 10-bit conversion
50 x 4/f
OSC
(3), f
OSC
= 10 MHz
20 – –
µs
Analog input
voltage
VIAN –
AV
SS
–
AV
REF
V
Analog input
impedance
RAN – 2 1000 – MW
Analog
reference
voltage
AVREF – 2.5 –
V
DD
V
Analog ground AVSS –
V
SS
–
V
SS
+ 0.3
Analog input
current
IADIN
AV
REF
= V
DD
= 5 V
conversion time = 20 µs
– – 10
µA
Analog block
current
(2)
IADC
AV
REF
= V
DD
= 5 V
conversion time = 20 µs
1 3 mA
AV
REF
= V
DD
= 3 V
conversion time = 20 µs
0.5 1.5
AV
REF
= V
DD
= 5 V
when power down mode
100 500 nA
NOTES:
1. "Conversion time" is the time required from the moment a conversion operation starts until it ends.
2. I
ADC
is operating current during A/D conversion.
3. f
OSC
is the main oscillator clock.