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ADS7866 View Datasheet(PDF) - Texas Instruments

Part NameDescriptionManufacturer
ADS7866 1.2-V, 12-/10-/8-BIT, 200-KSPS/100-KSPS, MICRO-POWER, MINIATURE ANALOG-TO-DIGITAL CONVERTER WITH SERIAL INTERFACE TI
Texas Instruments TI
ADS7866 Datasheet PDF : 28 Pages
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ADS7866
ADS7867
ADS7868
SLAS465 – JUNE 2005
TYPICAL CHARACTERISTICS ADS7868
0
−10
VDD = 1.2 V,
fSAMPLE = 100 KSPS,
−20 fi = 30 kHz,
SNR = 48.669 dB,
−30 SINAD = 48.605 dB,
−40 THD (9) = −66.910 dB,
−50 SFDR = 67.041 dB
FFT (8192 Points)
−60
−70
−80
−90
0
5
10
15
20
25
30
35
40
fi − Input Frequency − kHz
Figure 23.
0
−10
VDD = 1.6 V,
fSAMPLE = 200 KSPS,
−20 fi = 30 kHz,
−30
SNR = 49.420 dB,
SINAD = 49.413 dB,
−40 THD (9) = −77.085 dB,
−50 SFDR = 67.893 dB
FFT (8192 Points)
−60
−70
−80
−90
0
10
20
30
40
50
60
70
80
fi − Input Frequency − kHz
Figure 24.
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45
50
90
100
THROUGHPUT RATE
vs
SUPPLY VOLTAGE
300
275
250
225
200
175
150
1.2
8-Bit NMC, TA = 25°C,
tSAMPLE = 2.375/fSCLK,
tDIS(EOC-SDOZ)+tSU(LSBZ-CSF) = 0.375/fSCLK,
Throughput Rate = 12 SCLK Cycles
1.4
1.6
1.8
VDD − Supply Voltage − V
Figure 25.
THROUGHPUT RATE
vs
SUPPLY VOLTAGE
575
550
525
500
475
450
425
400
375
350
325
300
1.6
8-Bit NMC, TA = 25°C,
tSAMPLE = 2.25/fSCLK,
tDIS(EOC-SDOZ)+tSU(LSBZ-CSF) = 0.25/fSCLK,
Throughput Rate = 12 SCLK Cycles
1.8 2 2.2 2.4 2.6 2.8 3 3.2 3.4 3.6
VDD − Supply Voltage − V
Figure 26.
16
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