CS5531-ASZ Cirrus Logic Inc, CS5531-ASZ Datasheet - Page 3

• 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

LIST OF FIGURES
LIST OF TABLES
DS289F5
Figure 1. SDI Write Timing (Not to Scale)............................................................................... 11
Figure 2. SDO Read Timing (Not to Scale)............................................................................. 11
Figure 3. Multiplexer Configuration ......................................................................................... 12
Figure 4. Input models for AIN+ and AIN- pins ....................................................................... 13
Figure 5. Measured Voltage Noise Density............................................................................. 13
Figure 6. CS5531/32/33/34 Register Diagram ........................................................................ 14
Figure 7. Command and Data Word Timing ........................................................................... 22
Figure 8. Guard Signal Shielding Scheme .............................................................................. 24
Figure 9. Input Reference Model when VRS = 1 .................................................................... 25
Figure 10. Input Reference Model when VRS = 0 .................................................................. 25
Figure 11. Self-calibration of Offset......................................................................................... 32
Figure 12. Self-calibration of Gain........................................................................................... 32
Figure 13. System Calibration of Offset .................................................................................. 32
Figure 14. System Calibration of Gain .................................................................................... 32
Figure 15. Synchronizing Multiple ADCs................................................................................. 36
Figure 16. Digital Filter Response (Word Rate = 60 Sps) ....................................................... 38
Figure 17. 120 Sps Filter Magnitude Plot to 120 Hz ............................................................... 38
Figure 18. 120 Sps Filter Phase Plot to 120 Hz ...................................................................... 38
Figure 19. Z-Transforms of Digital Filters................................................................................ 38
Figure 20. On-chip Oscillator Model........................................................................................ 39
Figure 21. CS5532 Configured with a Single +5 V Supply ..................................................... 40
Figure 22. CS5532 Configured with ±2.5 V Analog Supplies.................................................. 41
Figure 23. CS5532 Configured with ±3 V Analog Supplies..................................................... 41
Figure 24. CS5532 Configured for Thermocouple Measurement ........................................... 42
Figure 25. Bridge with Series Resistors .................................................................................. 42
Table 1. Conversion Timing – Single Mode ............................................................................ 34
Table 2. Conversion Timing – Continuous Mode .................................................................... 34
Table 3. Command Byte Pointer ............................................................................................. 35
Table 4. Output Coding for 16-bit CS5531 and CS5533......................................................... 36
Table 5. Output Coding for 24-bit CS5532 and CS5534......................................................... 37
CS5531/32/33/34-AS
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