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ADC121S051 Arkusz danych(PDF) 4 Page - Texas Instruments

Numer części ADC121S051
Szczegółowy opis  ADC121S051 Single Channel, 200 to 500 ksps, 12-Bit A/D Converter
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Strona internetowa  http://www.ti.com
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ADC121S051 Arkusz danych(HTML) 4 Page - Texas Instruments

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ADC121S051
SNAS302I – JULY 2005 – REVISED JANUARY 2014
www.ti.com
ADC121S051 Converter Electrical Characteristics
(1) (2)
The following specifications apply for VA = +2.7V to 5.25V, fSCLK = 4 MHz to 10 MHz, fSAMPLE = 200 ksps to 500 ksps, CL = 15
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
+0.45
LSB (max)
VA = +2.7V to +3.6V
±1.0
−0.40
LSB (min)
INL
Integral Non-Linearity
+0.75
LSB (max)
VA = +4.75 to +5.25V
−0.45
LSB (min)
+0.50
+1.0
LSB (max)
VA = +2.7V to +3.6V
−0.25
−0.9
LSB (min)
DNL
Differential Non-Linearity
+0.80
LSB (max)
VA = +4.75 to +5.25V
−0.50
LSB (min)
VA = +2.7V to +3.6V
−0.18
±1.2
VOFF
Offset Error
LSB (max)
VA = +4.75 to +5.25V
+1.9
VA = +2.7V to +3.6V
−0.62
±1.5
GE
Gain Error
LSB (max)
VA = +4.75 to +5.25V
−1.50
DYNAMIC CONVERTER CHARACTERISTICS
VA = +2.7V to 5.25V
SINAD
Signal-to-Noise Plus Distortion Ratio
72
70
dB (min)
fIN = 100 kHz, −0.02 dBFS
VA = +2.7V to 5.25V
SNR
Signal-to-Noise Ratio
72
70.8
dB (min)
fIN = 100 kHz, −0.02 dBFS
VA = +2.7V to 5.25V
THD
Total Harmonic Distortion
−83
dB
fIN = 100 kHz, −0.02 dBFS
VA = +2.7V to 5.25V
SFDR
Spurious-Free Dynamic Range
84
dB
fIN = 100 kHz, −0.02 dBFS
VA = +2.7V to 5.25V
ENOB
Effective Number of Bits
11.7
11.3
Bits (min)
fIN = 100 kHz, −0.02 dBFS
Intermodulation Distortion, Second
VA = +5.25V
−83
dB
Order Terms
fa = 103.5 kHz, fb = 113.5 kHz
IMD
Intermodulation Distortion, Third Order
VA = +5.25V
−82
dB
Terms
fa = 103.5 kHz, fb = 113.5 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
±1
µA (max)
Track Mode
30
pF
CINA
Input Capacitance
Hold Mode
4
pF
DIGITAL INPUT CHARACTERISTICS
VA = +5.25V
2.4
V (min)
VIH
Input High Voltage
VA = +3.6V
2.1
V (min)
VA = +5V
0.8
V (max)
VIL
Input Low Voltage
VA = +3V
0.4
V (max)
IIN
Input Current
VIN = 0V or VA
±0.1
±1
µA (max)
CIND
Digital Input Capacitance
2
4
pF (max)
(1)
Tested limits are specified to National's AOQL (Average Outgoing Quality Level).
(2)
Data sheet min/max specification limits are ensured by design, test, or statistical analysis.
4
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