Manual

CS5531/32/33/34-AS
DS289F5 3
LIST OF FIGURES
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
LIST OF TABLES
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