Datasheet

−120
−100
−80
−60
−40
−20
0
0 10 20 30 40 50 60
Frequency (MHz)
Amplitude (dB)
SFDR = 86.9dBc
SNR = 71.2dBFS
SINAD = 71dBFS
THD = 83.9dBc
−120
−100
−80
−60
−40
−20
0
0 10 20 30 40 50 60
Frequency (MHz)
Amplitude (dB)
SFDR = 82.4dBc
SNR = 70.5dBFS
SINAD = 70.1dBFS
THD = 80.5dBc
−120
−100
−80
−60
−40
−20
0
0 10 20 30 40 50 60
Frequency (MHz)
Amplitude (dB)
SFDR = 79.7dBc
SNR = 70dBFS
SINAD = 69.5dBFS
THD = 78.3dBc
−120
−100
−80
−60
−40
−20
0
0 10 20 30 40 50 60
Frequency (MHz)
Amplitude (dB)
Each Tone at
−7dBFS Amplitude
f
IN1
= 100MHz
f
IN2
= 105MHz
Two−Tone IMD = 87.7dBFS
SFDR = 96.7dBFS
ADS4122, ADS4125
ADS4142, ADS4145
www.ti.com SBAS520A –FEBRUARY 2011– REVISED MARCH 2011
TYPICAL CHARACTERISTICS: ADS4125
At +25°C, AVDD = 1.8V, DRVDD = 1.8V, maximum rated sampling frequency, sine wave input clock, 1.5V
PP
differential clock
amplitude, 50% clock duty cycle, –1dBFS differential analog input, 0dB gain, low-latency mode, DDR LVDS output interface,
and 32k-point FFT, unless otherwise noted.
FFT FOR 20MHz INPUT SIGNAL FFT FOR 170MHz INPUT SIGNAL
Figure 33. Figure 34.
FFT FOR 300MHz INPUT SIGNAL FFT FOR TWO-TONE INPUT SIGNAL
Figure 35. Figure 36.
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Product Folder Link(s): ADS4122 ADS4125 ADS4142 ADS4145