ml675050 Oki Semiconductor, ml675050 Datasheet - Page 31

• Manufacturer Part Number: ml675050
• Description: Arm7tdmi Based Micro-controller For Ic Card Reader/writer
• Manufacturer: Oki Semiconductor

ELECTRICAL CHARACTERISTICS (DC CHARACTERISTICS)
(2) Analog to Digital Converter Characteristics
OKI Semiconductor
Parameter
operating clock
frequency
sampling
frequency
Resolution
Differential
linearity error
Linearity error
Zero scale
error
Full scale error
Analog Input
leakage
current
Conversion
time
Throughput
rate
(1) Resolution:
(2) Linearity error:
(3) Differential linearity error:
(4) Zero scale error:
(5) Full scale error:
Definition of Terms
Minimum input analog value recognized. For 10-bit resolution, this is (V
Difference between the theoretical and actual conversion characteristics.
(Note that it does not include quantization error.)
The theoretical conversion characteristic divides the voltage range between V
into 1024 equal steps.
Difference between the theoretical and actual input voltage change producing a 1-bit change in
the digital output anywhere within the conversion range.
This is an indicator of conversion characteristic smoothness.
The theoretical value is (V
Difference between the theoretical and actual conversion characteristics at the point where the digital
output switches from “0x000” to “0x001.”
Difference between the theoretical and actual conversion characteristics at the point where the digital
output switches from “0x3FE” to “0x3FF.”
clock
Symbol
f
f
n
DNL
INL
Ezs
I
tconv
cin
cs
IA
Efs
f
ath
Condition
Analog input source
impedance
Ri
Analog input source
REF
1 k
impedance
Ri
– Aground)
1 k
(V
DDCORE
1024.
= 1.35 to 1.65 V, V
Min.
0.8
32
2.5
32
1.0
Typ.
0
1.0
1.0
1.0
1.0
DDA
= 2.7 to 3.6 V, Ta = 40 to 85 C)
REF
Max.
10.0
400
12
1.0
31.25
400
4.0
6.0
8.0
8.0
– Aground)
REF
and AGND
FEDL675050-02
Unit
MHz
KHz
bit
LSB
uA
uS
kHz
1024.
ML675050
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