User guide

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)
(See Notes 15 and 16)
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 8.59 1015265099
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 20212223232323
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 18192021212121
240 62 17171818181818
480 122 17 17 17 17 17 17 17
960 230 16 16 17 17 17 17 17
1,920 390 16161616161616
3,840 780 13131313131313