ADS6444IRGCT View Datasheet(PDF) - STMicroelectronics
Part Name
Description
Manufacturer
ADS6444IRGCT Datasheet PDF : 75 Pages
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www.ti.com
ADS6445, ADS6444
ADS6443, ADS6442
SLAS531 – MAY 2007
TYPICAL CHARACTERISTICS
All plots are at 25°C, AVDD = LVDD = 3.3 V, maximum rated sampling frequency, sine wave input clock, 1.5 VPP differential
clock amplitude, 50% clock duty cycle, –1 dBFS differential analog input, internal reference mode, 0 dB gain (unless
otherwise noted)
0
−20
−40
−60
−80
−100
−120
−140
−160
0
0
−20
−40
−60
−80
−100
−120
−140
−160
0
ADS6445 (Fsrated = 125 MSPS)
FFT for 10 MHz INPUT SIGNAL
SFDR = 88 dBc
SINAD = 74 dBFS
SNR = 74.3 dBFS
THD = 87.6 dBc
10
20
30
40
50
60
f − Frequency − MHz
G001
Figure 6.
0
−20
−40
−60
−80
−100
−120
−140
−160
0
FFT for 100 MHz INPUT SIGNAL
SFDR = 86 dBc
SINAD = 72.63 dBFS
SNR = 72.76 dBFS
THD = 85 dBc
10
20
30
40
50
60
f − Frequency − MHz
G002
Figure 7.
FFT for 230 MHz INPUT SIGNAL
SFDR = 77.9 dBc
SINAD = 68 dBFS
SNR = 69.2 dBFS
THD = 75.3 dBc
10
20
30
40
50
60
f − Frequency − MHz
G003
Figure 8.
INTERMODULATION DISTORTION (IMD) vs FREQUENCY
0
−20
fIN1 = 185.1 MHz, –7 dBFS
fIN2 = 190.1 MHz, –7 dBFS
2-Tone IMD = –86 dBFS
−40 SFDR = –95 dBFS
−60
−80
−100
−120
−140
−160
0
10
20
30
40
50
60
f − Frequency − MHz
G004
Figure 9.
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