Typical rms noise (nv), Typical noise-free resolution (bits), Typical noise-free resolution(bits) – Cirrus Logic CS5534-BS User Manual
Page 7
CS5532/34-BS
DS755F3
7
TYPICAL RMS NOISE (nV)
(See notes 11, 12, 13 and 14)
Notes: 11. The -B devices provide the best noise specifications.
12. Wideband noise aliased into the baseband. Referred to the input. Typical values shown for 25 °C.
13. For Peak-to-Peak Noise multiply by 6.6 for all ranges and output rates.
14. Word rates and -3dB points with FRS = 0. When FRS = 1, word rates and -3dB points scale by 5/6.
TYPICAL NOISE-FREE RESOLUTION(BITS)
15. Noise-free resolution listed is for bipolar operation, and is calculated as LOG((Input Span)/(6.6xRMS
Noise))/LOG(2) rounded to the nearest bit. For unipolar operation, the input span is 1/2 as large, so one
bit is lost. The input span is calculated in the analog input span section of the data sheet. The noise-free
resolution table is computed with a value of 1.0 in the gain register. Values other than 1.0 will scale the
noise, and change the noise-free resolution accordingly.
16. “Noise-free resolution” is not the same as “effective resolution”. Effective resolution is based on the
RMS noise value, while noise-free resolution is based on a peak-to-peak noise value specified as 6.6
times the RMS noise value. Effective resolution is calculated as LOG((Input Span)/(RMS
Noise))/LOG(2).
Specifications are subject to change without notice.
Output Word
Rate (Sps)
-3 dB Filter
Frequency (Hz)
Instrumentation Amplifier Gain
x64
x32
x16
x8
x4
x2
x1
7.5
1.94
8.5
9
10
15
26
50
99
15
3.88
12
13
15
21
37
70
139
30
7.75
17
18
21
30
52
99
196
60
15.5
24
25
29
42
73
140
277
120
31
34
36
42
59
103
198
392
240
62
80
136
260
514
1020
2050
4090
480
122
113
194
369
730
1450
2900
5810
960
230
159
274
523
1030
2060
4110
8230
1,920
390
260
470
912
1810
3620
7230
14500
3,840
780
1360
2690
5380
10800
21500
43000
86000
Output Word
Rate (Sps)
-3 dB Filter
Frequency (Hz)
Instrumentation Amplifier Gain
x64
x32
x16
x8
x4
x2
x1
7.5
1.94
20
21
22
23
23
23
23
15
3.88
20
21
22
22
22
22
22
30
7.75
19
20
21
22
22
22
22
60
15.5
19
20
21
21
21
21
21
120
31
18
19
20
21
21
21
21
240
62
17
17
18
18
18
18
18
480
122
17
17
17
17
17
17
17
960
230
16
16
17
17
17
17
17
1,920
390
16
16
16
16
16
16
16
3,840
780
13
13
13
13
13
13
13