AD7767
TYPICAL PERFORMANCE CHARACTERISTICS
AVDD = DVDD = 2.5 V ± 5%, VDRIVE = 1.8 V to 3.6 V, VREF = 5 V, MCLK = 1 MHz, common-mode input = VREF/2. TA = 25°C, unless
otherwise noted. All FFTs were generated using 8192 samples using a 4-term Blackman-Harris window.
0
0
–20
–20
–40
–40
–60
–60
–80
–80
–100
–100
–120
–120
–140
–140
–160
–160
–180
0
8k 16k 24k 32k 40k 48k 56k 64k
FREQUENCY (Hz)
Figure 7. AD7767 FFT, 1 kHz, −0.5 dB Input Tone
–180
0
8k 16k 24k 32k 40k 48k 56k 64k
FREQUENCY (Hz)
Figure 10. AD7767 FFT, 1 kHz, −6 dB Input Tone
0
–20
–40
–60
–80
–100
–120
–140
–160
–180
0
4k
8k 12k 16k 20k 24k 28k 32k
FREQUENCY (Hz)
Figure 8. AD7767-1 FFT, 1 kHz, −0.5 dB Input Tone
0
–20
–40
–60
–80
–100
–120
–140
–160
–180
0
4k
8k
12k
16k
FREQUENCY (Hz)
Figure 9. AD7767-2 FFT, 1 kHz, −0.5 dB Input Tone
0
–20
–40
–60
–80
–100
–120
–140
–160
–180
0
4k
8k 12k 16k 20k 24k 28k 32k
FREQUENCY (Hz)
Figure 11. AD7767-1 FFT, 1 kHz, −6 dB Input Tone
0
–20
–40
–60
–80
–100
–120
–140
–160
–180
0
4k
8k
12k
16k
FREQUENCY (Hz)
Figure 12. AD7767-2 FFT, 1 kHz, −6 dB Input Tone
Rev. 0 | Page 10 of 24