Datasheet

AD7887
Rev. D | Page 8 of 24
TYPICAL PERFORMANCE CHARACTERISTICS
6.103516
0
12.20703 18.31055 24.41406 30.51758 36.62109 42.72461 48.82813 54.93164 61.03516
–110
0
–10
–30
–50
–70
–90
4096 POINT FFT
SAMPLING
125kSPS
f
IN
= 10kHz
SNR = 71dB
06191-005
INPUT FREQUENCY (kHz)
–93
2.65
64.15
PSRR (dB)
12.85
V
DD
= 5.5V/2.7V
100mV p-p SINE WAVE ON V
DD
REF
IN
= 2.488V EXT REFERENCE
23.15 33.65
–91
–89
–87
–85
–83
–81
–79
–77
–
75
43.85 54.35
06191-007
Figure 5. Dynamic Performance
Figure 7. PSRR vs. Frequency
INPUT FREQUENCY (kHz)
71.0
0.15 42.14
SN
R
(dB)
73.0
72.5
72.0
71.5
31.5910.89
V
DD
= 5V
5V EXT REFERENCE
21.14
0
6191-006
Figure 6. SNR vs. Input Frequency