AD6657A
Data Sheet
TYPICAL PERFORMANCE CHARACTERISTICS
AVDD = 1.8 V, DRVDD = 1.8 V, sample rate = 185 MSPS, 1.75 V p-p differential input, VIN = −1.0 dBFS, 32,000 sample, TA = 25°C,
unless otherwise noted.
0
185MSPS
0
185MSPS
10.3MHz @ –1dBFS
140.3MHz @ –1dBFS
SNR = 65.6dB (66.6dBFS)
SNR = 65.4dB (66.4dBFS)
–20
SFDR = 94.0dBc
–20
SFDR = 90dBc
–40
–40
–60
SECOND HARMONIC
THIRD HARMONIC
–80
–60
THIRD HARMONIC
SECOND HARMONIC
–80
–100
–100
–120
0
9.25 18.50 27.75 37.00 46.25 55.50 64.75 74.00 83.25 92.50
FREQUENCY (MHz)
Figure 5. Single Tone FFT, fIN = 10.3 MHz
–120
0
9.25 18.50 27.75 37.00 46.25 55.50 64.75 74.00 83.25 92.50
FREQUENCY (MHz)
Figure 8. Single Tone FFT, fIN = 140.3 MHz
0
185MSPS
0
185MSPS
50.3MHz @ –1dBFS
200.3MHz @ –1dBFS
SNR = 65.6dB (66.6dBFS)
SNR = 64.9dB (65.9dBFS)
–20
SFDR = 92.0dBc
–20
SFDR = 84dBc
–40
–40
–60
THIRD HARMONIC
–80
SECOND HARMONIC
–60
THIRD HARMONIC
SECOND HARMONIC
–80
–100
–100
–120
0
9.25 18.50 27.75 37.00 46.25 55.50 64.75 74.00 83.25 92.50
FREQUENCY (MHz)
Figure 6. Single Tone FFT, fIN = 50.3 MHz
–120
0
9.25 18.50 27.75 37.00 46.25 55.50 64.75 74.00 83.25 92.50
FREQUENCY (MHz)
Figure 9. Single Tone FFT, fIN = 200.3 MHz
0
185MSPS
70.3MHz @ –1dBFS
SNR = 65.5dB (66.5dBFS)
–20 SFDR = 88dBc
–40
0
185MSPS
230.3MHz @ –1dBFS
SNR = 66.1dB (65.1dBFS)
–20
SFDR = 84dBc
–40
–60
SECOND HARMONIC
THIRD HARMONIC
–80
–60
SECOND HARMONIC
THIRD HARMONIC
–80
–100
–100
–120
0
9.25 18.50 27.75 37.00 46.25 55.50 64.75 74.00 83.25 92.50
FREQUENCY (MHz)
Figure 7. Single Tone FFT, fIN = 70.3 MHz
–120
0
9.25 18.50 27.75 37.00 46.25 55.50 64.75 74.00 83.25 92.50
FREQUENCY (MHz)
Figure 10. Single Tone FFT, fIN = 230.3 MHz
Rev. A | Page 14 of 36