AD7626(2009) View Datasheet(PDF) - Analog Devices
Part Name
Description
View to exact match
AD7626 Datasheet PDF : 28 Pages
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AD7626
TYPICAL PERFORMANCE CHARACTERISTICS
VDD1 = 5 V; VDD2 = 2.5 V; VIO = 2.5 V; REF = 4.096 V; all plots at 10 MSPS unless otherwise noted. FFT plots for 2 MHz, 3 MHz, and
5 MHz input tones use band pass filter (±400 kHz pass bandwidth around fundamental frequency).
0
0
INPUT FREQUENCY = 10.37kHz
SNR = 91.85dB
–20
SINAD = 91.8dB
–20
THD = –112.1dB
–40
SFDR = 112.85dB
32k SAMPLES
–40
–60
–60
INPUT FREQUENCY = 100kHz
SNR = 91.323dB
SINAD = 91.047dB
THD = –102.543dB
SFDR = 104.529dB
–80
–80
–100
–100
–120
–120
–140
–140
–160
–160
–180
0 10
30
50
70
90
FREQUENCY (kHz)
Figure 5. 10 kHz, −0.5 dB Input Tone, Zoomed View
–180
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
FREQUENCY (MHz)
Figure 8.100 kHz, −0.5 dB Input Tone FFT, Full Frequency View
0
–20
–40
–60
–80
–100
FIFTH
HARMONIC
INPUT FREQUENCY = 2.0026MHz
–0.5dB INPUT AMPLITUDE
SNR = 87.4dBFS
SINAD = 84.8dBFS
THD = –87.9dB
SFDR = 88.1dB
64k SAMPLES
THIRD
HARMONIC
SECOND
HARMONIC
–120
–140
–160
–180
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
FREQUENCY (MHz)
Figure 6. FFT, 2 MHz, −0.5 dB Input Tone, Wide View
0
INPUT FREQUENCY = 2.0026MHz
–6dB INPUT AMPLITUDE
–20
SNR = 87.6dBFS
SINAD = 87.6dBFS
THD = –101.6dB
–40
SFDR = 101.9dB
64k SAMPLES
–60
–80
–100
FIFTH
HARMONIC
–120
THIRD
HARMONIC
SECOND
HARMONIC
–140
–160
–180
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
FREQUENCY (MHz)
Figure 9. FFT, 2 MHz, −6 dB Input Tone, Wide View
0
INPUT FREQUENCY = 3.00125MHz
–0.5dB INPUT AMPLITUDE
–20 SNR = 87.1dBFS
SINAD = 81.2dBFS
THD = –82.0dB
–40 SFDR = 82.1dB
64k SAMPLES
–60
THIRD
HARMONIC
–80
–100
FOURTH
HARMONIC
–120
SECOND
HARMONIC
FIFTH
HARMONIC
–140
–160
–180
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
FREQUENCY (MHz)
Figure 7. FFT, 3 MHz, −0.5 dB Input Tone, Wide View
0
INPUT FREQUENCY = 3.00125MHz
–6dB INPUT AMPLITUDE
–20 SNR = 88.48dBFS
SINAD = 88.3dBFS
THD = –97.2dB
–40 SFDR = 98.3dB
64k SAMPLES
–60
–80
–100
–120
THIRD
HARMONIC
FOURTH
HARMONIC
SECOND
HARMONIC
FIFTH
HARMONIC
–140
–160
–180
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
FREQUENCY (MHz)
Figure 10. FFT, 3 MHz, −6 dB Input Tone, Wide View
Rev. 0 | Page 10 of 28
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