Datasheet

AD7176-2 Data Sheet
Rev. A | Page 12 of 68
Figure 11. Noise vs. Common-Mode Input Voltage
(AVDD1 = 5 V, AVDD2 = 5 V, IOVDD = 3.3 V, V
REF
= 2.5 V)
Figure 12. Noise vs. Master Clock
(AVDD1 = 5 V, AVDD2 = 5 V, IOVDD = 3.3 V, V
REF
= 2.5 V)
Figure 13. 50 Hz Input Tone, −0.5 dBFS Input FFT (AVDD1 = 5 V, AVDD2 = 5 V,
IOVDD = 3.3 V, V
REF
= 2.5 V, Output Data Rate = 1 kSPS)
Figure 14. 1 kHz Input Tone, −0.5 dBFS Input FFT (AVDD1 = 5 V, AVDD2 = 5 V,
IOVDD = 3.3 V, V
REF
= 2.5 V, Output Data Rate = 50 kSPS)
Figure 15. 50 Hz Input Tone, −6 dBFS Input FFT (AVDD1 = 5 V, AVDD2 = 5 V,
IOVDD = 3.3 V, V
REF
= 2.5 V, Output Data Rate = 1 kSPS)
Figure 16. 1 kHz Input Tone, −6 dBFS Input FFT (AVDD1 = 5 V, AVDD2 = 5 V,
IOVDD = 3.3 V, V
REF
= 2.5 V, Output Data Rate = 50 kSPS)
12
10
8
6
4
2
0
0 1 5432
RMS NOISE (µV)
V
CM
(V)
250kSPS
10kSPS
1kSPS
11037-012
11.0
10.5
8.0
8.5
9.0
9.5
10.0
0 5 10 15
RMS NOISE (µV)
MASTER CLOCK FREQUENCY (MHz)
11037-016
0
–180
0 500
AMPLITUDE (dB)
FREQUENCY (Hz)
–160
–140
–120
–100
–80
–60
–40
–20
50 100 150 200 250 300 350 400 450
11037-017
0
–160
0 25k5k 10k 15k 20k
AMPLITUDE (dB)
FREQUENCY (Hz)
–140
–120
–100
–80
–60
–40
–20
11037-019
0
–180
0 500
AMPLITUDE (dB)
FREQUENCY (Hz)
–160
–140
–120
–100
–80
–60
–40
–20
50 100 150 200 250 300 350 400 450
11037-020
0
–160
0 25k5k 10k 15k 20k
AMPLITUDE (dB)
FREQUENCY (Hz)
–140
–120
–100
–80
–60
–40
–20
11037-022