ADC128S102 Converter Electrical Characteristics (Note 8) (Continued)
The following specifications apply for AGND = DGND = 0V, fSCLK = 8 MHz to 16 MHz, fSAMPLE = 500 kSPS to 1 MSPS, CL
=
50pF, unless otherwise noted. Boldface limits apply for TA = TMIN to TMAX: all other limits TA = 25˚C.
Limits
(Note 7)
Symbol
Parameter
Conditions
Typical
Units
DYNAMIC CONVERTER CHARACTERISTICS
VA = VD = +3.0V,
−88
−90
91
−74
−74
75
dB (max)
dB (max)
dB (min)
dB (min)
Bits (min)
Bits (min)
dB
fIN = 40.2 kHz, −0.02 dBFS
VA = VD = +5.0V,
THD
Total Harmonic Distortion
Spurious-Free Dynamic Range
Effective Number of Bits
fIN = 40.2 kHz, −0.02 dBFS
VA = VD = +3.0V,
fIN = 40.2 kHz, −0.02 dBFS
VA = VD = +5.0V,
SFDR
ENOB
ISO
92
75
fIN = 40.2 kHz, −0.02 dBFS
VA = VD = +3.0V,
11.8
11.8
82
11.3
11.3
fIN = 40.2 kHz
VA = VD = +5.0V,
fIN = 40.2 kHz, −0.02 dBFS
VA = VD = +3.0V,
fIN = 20 kHz
Channel-to-Channel Isolation
VA = VD = +5.0V,
84
dB
fIN = 20 kHz, −0.02 dBFS
VA = VD = +3.0V,
−89
−91
−88
−88
dB
fa = 19.5 kHz, fb = 20.5 kHz
VA = VD = +5.0V,
Intermodulation Distortion, Second
Order Terms
dB
fa = 19.5 kHz, fb = 20.5 kHz
VA = VD = +3.0V,
IMD
dB
fa = 19.5 kHz, fb = 20.5 kHz
VA = VD = +5.0V,
Intermodulation Distortion, Third
Order Terms
dB
fa = 19.5 kHz, fb = 20.5 kHz
ANALOG INPUT CHARACTERISTICS
VIN
Input Range
0 to VA
V
µA (max)
pF
IDCL
DC Leakage Current
1
Track Mode
Hold Mode
33
3
CINA
Input Capacitance
pF
DIGITAL INPUT CHARACTERISTICS
VA = VD = +2.7V to +3.6V
VA = VD = +4.75V to +5.25V
VA = VD = +2.7V to +5.25V
VIN = 0V or VD
2.1
2.4
0.8
1
V (min)
V (min)
VIH
Input High Voltage
VIL
Input Low Voltage
Input Current
V (max)
µA (max)
pF (max)
IIN
0.01
2
CIND
Digital Input Capacitance
4
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