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ADS820 Datasheet(PDF) 6 Page - Texas Instruments

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Part # ADS820
Description  10-Bit, 20MHz Sampling ANALOG-TO-DIGITAL CONVERTER
PDF  21 Pages
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

ADS820 Datasheet(HTML) 6 Page - Texas Instruments

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ADS820
6
SBAS037B
TYPICAL CHARACTERISTICS (Cont.)
At TA = +25°C, VS = +5V, Sampling Rate = 20MHz, with a 50% duty cycle clock having a 2ns rise/fall time, unless otherwise noted.
DYNAMIC PERFORMANCE vs INPUT FREQUENCY
Frequency (Hz)
85
80
75
70
65
60
55
100k
1M
10M
100M
SFDR
SNR
100
80
60
40
20
0
Input Amplitude (dBm)
SWEPT POWER SFDR
–50
–40
–30
–20
–10
0
10
f
IN = 10MHz
60
50
40
30
20
10
0
Input Amplitude (dBm)
SWEPT POWER SNR
–48.125
–40
–30
–20
–10
0
10
f
IN = 10MHz
4.0
2.0
0
–2.0
–4.0
INTEGRAL LINEARITY ERROR
Code
f
IN = 500kHz
24
224
424
624
824
1024
80
75
70
65
60
55
DYNAMIC PERFORMANCE
vs SINGLE-ENDED FULL-SCALE INPUT RANGE
12
3
4
5
Single-Ended Full-Scale Input Range (Vp-p)
SNR (f
IN = 10MHz)
SFDR (f
IN = 500kHz)
SNR (f
IN = 500kHz)
SFDR (f
IN = 10MHz)
NOTE: REFT
EXT varied, REFB is fixed at the internal value of +1.25V.
80
75
70
65
60
55
DYNAMIC PERFORMANCE
vs DIFFERENTIAL FULL-SCALE INPUT RANGE
12
3
4
5
Differential Full-Scale Input Range (Vp-p)
NOTE: REFT
EXT varied, REFB is fixed at internal value of +1.25V.
SNR (f
IN = 10MHz)
SFDR (f
IN = 500kHz)
SNR (f
IN = 500kHz)
SFDR (f
IN = 10MHz)



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