HMS30C7202N Просмотр технического описания (PDF) - MagnaChip Semiconductor
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HMS30C7202N Datasheet PDF : 179 Pages
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HMS30C7202N
12.3 A/D Converter Electrical Characteristics
Symbol
Paramter
Test Condition
Min
Typ
Max
Unit
aclk=8MHz *
Idd
Normal
Input=AVref V
fin=2KHz ramp
6.0
mA
Power Down
aclk=8MHz
60
uA
An**
Analog Input Voltage
AVSS+0.2
AVref-0.2 V
Accuracy
Resolution
10
Bits
aclk=8MHz
INL
Integral Non-linearity
Input=0 - AVref V
fin=2KHz ramp
±2.0
LSB
aclk=8MHz
DNL
Differential Non-linearity
Input=0 - AVref V
fin=2KHz ramp
±1.0
LSB
SNR
Signal-to-Noise Ratio
Fsample = 500Ksps
fin = 2KHz
51
54
dB
SNDR
Signal-to-Noise Distortion
Ratio
49
52
dB
aclk
2
4
8
MHz
tc
Conversion Time
tc = [aclk/16] -1
2
4
8
us
AVref*** Analog Reference Voltage
AVDD
V
Tcal
Power-up Time
Calibration Time
22
ms
THD
Total Harmonic Distortion
51
54
dB
AVDD
Analog Power
3.0
3.3
3.6
V
DVDD
Digital Power
3.0
3.3
3.6
V
fin
Analog Input Frequency
5
KHz
(For Test, Analog Input Freq. = 2KHz, aclk=8MHz, AVDD=DVDD=AVref=3.3V, Temperature=25°C)
aclk : To determine electrical characteristic of ADC, used 8MHz clock as aclk.
but for 7202 ADC, used 3.6864MHz for aclk.
an* : Analog input is sample and hold with 500Ω resistor and 300 fF capacitor in series
and connected with gate of CMOS transistor.
So, in normal, input resistance of an analog input pin has a couple of Mega Ohms.
AVref** : The equivalent impedance of AVREF is about 5kΩ of resistance to GND.
© 2004 MagnaChip Semiconductor Ltd. All R1ig63hts Reserved.
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Version 1.1
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