Datasheet

20 20k
FREQUENCY (Hz)
1P
50P
OUTPUT NOISE VOLTAGE (V)
10k1k 2k 5k
2P
3P
4P
5P
6P
7P
8P
9P
40P
30P
20P
10P
50 100 200 500
20 20k
FREQUENCY (Hz)
50P
100P
150P
OUTPUT NOISE VOLTAGE (V)
10k1k 2k 5k50 100 200 500
62P
75P
85P
90P
120P
52P
55P
65P
72P
95P
82P
20 20k
FREQUENCY (Hz)
1P
50P
OUTPUT NOISE VOLTAGE (V)
10k1k 2k 5k
2P
3P
4P
5P
6P
7P
8P
9P
40P
30P
20P
10P
50 100 200 500
20 20k
FREQUENCY (Hz)
50P
100P
150P
OUTPUT NOISE VOLTAGE (V)
10k1k 2k 5k50 100 200 500
62P
75P
85P
90P
120P
52P
55P
65P
72P
95P
82P
20 20k
FREQUENCY (Hz)
1P
50P
OUTPUT NOISE VOLTAGE (V)
10k1k 2k 5k
2P
3P
4P
5P
6P
7P
8P
9P
40P
30P
20P
10P
50 100 200 500
20 20k
FREQUENCY (Hz)
50P
100P
150P
OUTPUT NOISE VOLTAGE (V)
10k1k 2k 5k50 100 200 500
62P
75P
85P
90P
120P
52P
55P
65P
72P
95P
82P
LM4951A
www.ti.com SNAS453C –AUGUST 2008–REVISED APRIL 2013
Typical Performance Characteristics (continued)
Noise Floor Noise Floor
V
DD
= 3.3V, A
V
= 6dB, R
i
= R
f
= 20kΩ V
DD
= 3V, A
V
= 26dB, R
i
= 20kΩ, R
f
= 200kΩ
BW < 80kHz, A-weighted BW < 80kHz, A-weighted
Figure 21. Figure 22.
Noise Floor Noise Floor
V
DD
= 5V, A
V
= 6dB, R
i
= R
f
= 20kΩ V
DD
= 5V, A
V
= 26dB, R
i
= 20kΩ, R
f
= 200kΩ
BW < 80kHz, A-weighted BW < 80kHz, A-weighted
Figure 23. Figure 24.
Noise Floor Noise Floor
V
DD
= 7.5V, A
V
= 6dB, R
i
= R
f
= 20kΩ V
DD
= 7.5V, A
V
= 26dB, R
i
= 20kΩ, R
f
= 200kΩ
BW < 80kHz, A-weighted BW < 80kHz, A-weighted
Figure 25. Figure 26.
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