CS5531-ASZ Cirrus Logic Inc, CS5531-ASZ Datasheet - Page 7

• Manufacturer Part Number: CS5531-ASZ
• Description: IC ADC 16BIT 2CH W/LNA 20SSOP
• Manufacturer: Cirrus Logic Inc

Specifications of CS5531-ASZ

• Number Of Converters: 1
• Package / Case: 20-SSOP
• Number Of Bits: 16
• Sampling Rate (per Second): 3.84k
• Data Interface: Serial
• Power Dissipation (max): 45mW
• Voltage Supply Source: Analog and Digital, Dual ±
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Number Of Adc Inputs: 4
• Architecture: Delta-Sigma
• Conversion Rate: 6.25 SPs to 3840 SPs
• Resolution: 16 bit
• Input Type: Voltage
• Interface Type: Serial (3-Wire)
• Voltage Reference: 2.5 V
• Maximum Power Dissipation: 500 mW
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 598-1111-5

TYPICAL RMS NOISE (nV), CS5531/32/33/34
(See notes 11, 12 and 13)
Notes: 11. Wideband noise aliased into the baseband. Referred to the input. Typical values shown for 25 °C.
TYPICAL NOISE-FREE RESOLUTION(BITS), CS5532/34
DS289F5
Output Word
Output Word
Rate (Sps)
Rate (Sps)
1,920
3,840
1,920
3,840
120
240
480
960
120
240
480
960
7.5
7.5
15
30
60
15
30
60
12. For peak-to-peak noise multiply by 6.6 for all ranges and output rates.
13. Word rates and -3dB points with FRS = 0. When FRS = 1, word rates and -3dB points scale by 5/6.
14. Noise-free resolution listed is for bipolar operation, and is calculated as LOG((Input Span)/(6.6xRMS
15. “Noise-free resolution” is not the same as “effective resolution”. Effective resolution is based on the
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.
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).
Frequency (Hz)
Frequency (Hz)
-3 dB Filter
-3 dB Filter
1.94
3.88
7.75
15.5
1.94
3.88
7.75
15.5
122
230
390
780
122
230
390
780
31
62
31
62
Specifications are subject to change without notice.
1390
x64
163
229
344
x64
115
17
24
34
48
68
19
19
18
18
17
16
16
15
15
13
2710
x32
160
230
321
523
x32
17
25
35
49
70
20
20
19
19
18
17
17
16
15
13
Instrumentation Amplifier Gain
Instrumentation Amplifier Gain
5390
x16
276
392
554
946
x16
19
27
39
54
77
21
21
20
20
19
17
17
16
15
13
10800
1060
1840
102
527
748
x8
26
36
51
72
x8
22
21
21
20
20
17
17
16
15
13
CS5531/32/33/34-AS
21500
1040
1480
2090
3650
(See Notes 14 and 15)
167
118
x4
42
59
84
x4
22
21
21
20
20
17
17
16
15
13
43000
2070
2950
4170
7290
157
222
314
111
x2
79
x2
22
22
21
21
20
17
17
16
15
13
14600
86100
4150
5890
8340
155
218
308
436
616
x1
x1
22
22
21
21
20
17
17
16
15
13
7