User's Manual

DOC No: ZB7412-00A-DTS-R03
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Copyright © JORJIN TECHNOLOGIES INC. 2017 22
http://WWW.JORJIN.COM.TW
4.18. ADC Characteristics
(1)
Tc = 25°C, VDDS = 3.0 V and voltage scaling enabled, unless otherwise noted.
Parameter
Test Conditions
Min
Typ
Max
Units
Input voltage range
0
V
DDS
V
Resolution
12
Bits
Sample rate
200
ksps
Offset
Internal 4.3-V equivalent reference
(2)
2
LSB
Gain error
Internal 4.3-V equivalent reference
(2)
2.4
LSB
DNL
(3)
-
Differential nonlinearity
>-1
LSB
INL -
Integral nonlinearity
±3
LSB
ENOB -
Effective number of bits
Internal 4.3-V equivalent reference
(2)
, 200 ksps,
9.6-kHz input tone
9.8
Bits
VDDS as reference, 200 ksps, 9.6-kHz input tone
10
Bits
Internal 1.44-V reference, voltage scaling disabled,
32 samples average, 200 ksps, 300-Hz input tone
11.1
Bits
THD -
Total harmonic
distortion
Internal 4.3-V equivalent reference
(2)
, 200 ksps,
9.6-kHz input tone
-65
dB
VDDS as reference, 200 ksps, 9.6-kHz input tone
-69
dB
Internal 1.44-V reference, voltage scaling disabled,
32 samples average, 200 ksps, 300-Hz input tone
-71
dB
SINAD / SNDR -
Signal-to-noise and
distortion ratio
Internal 4.3-V equivalent reference
(2)
, 200 ksps,
9.6-kHz input tone
60
dB
VDDS as reference, 200 ksps, 9.6-kHz input tone
63
dB
Internal 1.44-V reference, voltage scaling disabled,
32 samples average, 200 ksps, 300-Hz input tone
69
dB
SFDR –
Spurious-free dynamic
range
Internal 4.3-V equivalent reference
(2)
, 200 ksps,
9.6-kHz input tone
67
dB
VDDS as reference, 200 ksps, 9.6-kHz input tone
72
dB
Internal 1.44-V reference, voltage scaling disabled,
32 samples average, 200 ksps, 300-Hz input tone
73
dB
Conversion time
Serial conversion, time-to-output, 24-MHz clock
50
Clock
cycles
Current consumption
Internal 4.3-V equivalent reference
(2)
0.66
mA