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| ADC128S022CIMT-NOPB Datasheet, PDF (4/26 Pages) Texas Instruments – 8-Channel, 50 kSPS to 200 kSPS, 12-Bit A/D Converter | |||
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ADC128S022
SNAS334E â AUGUST 2005 â REVISED MARCH 2013
www.ti.com
ADC128S022 Converter Electrical Characteristics(1)
The following specifications apply for AGND = DGND = 0V, fSCLK = 0.8 MHz to 3.2 MHz, fSAMPLE = 50 ksps to 200 ksps, CL =
50pF, unless otherwise noted. Boldface limits apply for TA = TMIN to TMAX: all other limits TA = 25°C.
Symbol
Parameter
Conditions
Typical Limits(2)
Units
STATIC CONVERTER CHARACTERISTICS
Resolution with No Missing Codes
12
Bits
INL
Integral Non-Linearity (End Point
Method)
DNL
Differential Non-Linearity
VA = VD = +3.0V
VA = VD = +5.0V
VA = VD = +3.0V
VA = VD = +5.0V
±0.3
±1
LSB (max)
±0.4
±1
LSB (max)
+0.3
+0.9
LSB (max)
â0.2
â0.7
LSB (min)
+0.5
+1.0
LSB (max)
â0.3
â0.7
LSB (min)
VOFF
OEM
Offset Error
Offset Error Match
FSE
Full Scale Error
FSEM
Full Scale Error Match
DYNAMIC CONVERTER CHARACTERISTICS
VA = VD = +3.0V
VA = VD = +5.0V
VA = VD = +3.0V
VA = VD = +5.0V
VA = VD = +3.0V
VA = VD = +5.0V
VA = VD = +3.0V
VA = VD = +5.0V
0.8
±2.3
LSB (max)
1.2
±2.3
LSB (max)
±0.05
±1.5
LSB (max)
±0.2
±1.5
LSB (max)
0.5
±2.0
LSB (max)
0.3
±2.0
LSB (max)
±0.05
±1.5
LSB (max)
±0.2
±1.5
LSB (max)
FPBW
Full Power Bandwidth (â3dB)
VA = VD = +3.0V
8
VA = VD = +5.0V
11
SINAD
Signal-to-Noise Plus Distortion Ratio
VA = VD = +3.0V,
fIN = 39.9 kHz, â0.02 dBFS
73
VA = VD = +5.0V,
fIN = 39.9 kHz, â0.02 dBFS
73
SNR
Signal-to-Noise Ratio
VA = VD = +3.0V,
fIN = 39.9 kHz, â0.02 dBFS
73
VA = VD = +5.0V,
fIN = 39.9 kHz, â0.02 dBFS
73
THD
Total Harmonic Distortion
VA = VD = +3.0V,
fIN = 39.9 kHz, â0.02 dBFS
â89
VA = VD = +5.0V,
fIN = 39.9 kHz, â0.02 dBFS
â90
SFDR
Spurious-Free Dynamic Range
VA = VD = +3.0V,
fIN = 39.9 kHz, â0.02 dBFS
91
VA = VD = +5.0V,
fIN = 39.9 kHz, â0.02 dBFS
91
ENOB
Effective Number of Bits
VA = VD = +3.0V, fIN = 39.9 kHz
VA = VD = +5.0V, fIN = 39.9 kHz, â0.02
dBFS
11.8
11.8
70
70
70.8
70.8
â74
â74
75
75
11.3
11.3
MHz
MHz
dB (min)
dB (min)
dB (min)
dB (min)
dB (max)
dB (max)
dB (min)
dB (min)
Bits (min)
Bits (min)
VA = VD = +3.0V, fIN = 20 kHz
81
dB
ISO
Channel-to-Channel Isolation
VA = VD = +5.0V, fIN = 20 kHz, â0.02
dBFS
80
dB
(1) Data sheet min/max specification limits are specified by design, test, or statistical analysis.
(2) Tested limits are specified to Texas Instruments' AOQL (Average Outgoing Quality Level).
4
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