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ADC122S101 bảng dữ liệu(PDF) 4 Page - Texas Instruments

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Giải thích chi tiết về linh kiện  2 Channel, 500 ksps to 1 Msps 12-Bit A/D Converter
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ADC122S101 bảng dữ liệu(HTML) 4 Page - Texas Instruments

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ADC122S101
SNAS286C – MARCH 2005 – REVISED JANUARY 2010
www.ti.com
ADC122S101 Converter Electrical Characteristics
(1)
The following specifications apply for VA = +2.7 V to 5.25 V, GND = 0V, fSCLK = 8 MHz to 16 MHz, fSAMPLE = 500 ksps to 1
Msps, CL = 35 pF unless otherwise noted. Boldface limits apply for TA = TMIN to TMAX: all other limits TA = 25°C.
Limits
Symbol
Parameter
Conditions
Typical
Units
(2)
STATIC CONVERTER CHARACTERISTICS
Resolution with No Missing Codes
12
Bits
+0.64
+1.6
LSB (max)
INL
Integral Non-Linearity
−0.64
−1.2
LSB (min)
+0.9
+1.6
LSB (max)
DNL
Differential Non-Linearity
−0.6
−1.0
LSB (min)
VOFF
Offset Error
+0.44
±1.3
LSB (max)
OEM
Channel to Channel Offset Error Match
±0.1
±1.0
LSB (max)
FSE
Full-Scale Error
−0.34
±1.5
LSB (max)
Channel to Channel Full-Scale Error
FSEM
±0.1
±1.0
LSB (max)
Match
DYNAMIC CONVERTER CHARACTERISTICS
VA = +2.7 to 5.25V,
SINAD
Signal-to-Noise Plus Distortion Ratio
72
69.2
dB (min)
fIN = 40.3 kHz, −0.02 dBFS
VA = +2.7 to 5.25V
SNR
Signal-to-Noise Ratio
72.4
70.6
dB (min)
fIN = 40.3 kHz, −0.02 dBFS
VA = +2.7 to 5.25V,
THD
Total Harmonic Distortion
−82
−75
dB (max)
fIN = 40.3 kHz, −0.02 dBFS
VA = +2.7 to 5.25V
SFDR
Spurious-Free Dynamic Range
83
76
dB (min)
fIN = 40.3 kHz, −0.02 dBFS
ENOB
Effective Number of Bits
VA = +2.7 to 5.25V
11.7
11.2
Bits (min)
VA = +5.25V
Channel-to-Channel Crosstalk
−86
dB
fIN = 40.3 kHz
Intermodulation Distortion, Second
VA = +5.25V,
−87
dB
Order Terms
fa = 40.161 kHz, fb = 41.015 kHz
IMD
Intermodulation Distortion, Third Order
VA = +5.25V
−88
dB
Terms
fa = 40.161 kHz, fb = 41.015 kHz
VA = +5V
11
MHz
FPBW
-3 dB Full Power Bandwidth
VA = +3V
8
MHz
ANALOG INPUT CHARACTERISTICS
VIN
Input Range
0 to VA
V
IDCL
DC Leakage Current
±0.02
±1
µA (max)
Track Mode
33
pF
CINA
Input Capacitance
Hold Mode
3
pF
DIGITAL INPUT CHARACTERISTICS
VA = +5.25V
2.4
V (min)
VIH
Input High Voltage
VA = +3.6V
2.1
V (min)
VIL
Input Low Voltage
0.8
V (max)
IIN
Input Current
VIN = 0V or VIN = VA
±0.1
±10
µA (max)
CIND
Digital Input Capacitance
2
4
pF (max)
DIGITAL OUTPUT CHARACTERISTICS
ISOURCE = 200 µA
VA − 0.03
VA − 0.5
V (min)
VOH
Output High Voltage
ISOURCE = 1 mA
VA − 0.1
V
ISINK = 200 µA
0.02
0.4
V (max)
VOL
Output Low Voltage
ISINK = 1 mA
0.1
V
IOZH, IOZL TRI-STATE® Leakage Current
±0.01
±1
µA (max)
(1)
Min/max specification limits are guaranteed by design, test, or statistical analysis.
(2)
Tested limits are guaranteed to National's AOQL (Average Outgoing Quality Level).
4
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Copyright © 2005–2010, Texas Instruments Incorporated
Product Folder Links: ADC122S101


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