CS5531/32/33/34 - Eshop-Rychle.cz

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LIST OF FIGURESCS5531/32/33/34Figure 1. SDI Write Timing (Not to Scale) ...............................................................................13Figure 2. SDO Read Timing (Not to Scale) .............................................................................13Figure 3. Multiplexer Configuration .........................................................................................14Figure 4. Input models for AIN+ and AIN- pins .......................................................................15Figure 5. Measured Voltage Noise Density.............................................................................15Figure 6. CS5531/32/33/34 Register Diagram ........................................................................16Figure 7. Command and Data Word Timing............................................................................24Figure 8. Guard Signal Shielding Scheme ..............................................................................26Figure 9. Input Reference Model when VRS = 1.....................................................................27Figure 10. Input Reference Model when VRS = 0...................................................................27Figure 11. Self Calibration of Offset ........................................................................................34Figure 12. Self Calibration of Gain ..........................................................................................34Figure 13. System Calibration of Offset ..................................................................................34Figure 14. System Calibration of Gain ....................................................................................34Figure 15. Synchronizing Multiple ADCs.................................................................................38Figure 16. Digital Filter Response (Word Rate = 60 Sps) .......................................................40Figure 17. 120 Sps Filter Magnitude Plot to 120 Hz................................................................40Figure 18. 120 Sps Filter Phase Plot to 120 Hz ......................................................................40Figure 19. Z-Transforms of Digital Filters................................................................................40Figure 20. On-chip Oscillator Model........................................................................................41Figure 21. CS5532 Configured with a Single +5 V Supply......................................................42Figure 22. CS5532 Configured with ±2.5 V Analog Supplies..................................................43Figure 23. CS5532 Configured with ±3 V Analog Supplies.....................................................43Figure 24. CS5532 Configured for Thermocouple Measurement ...........................................44Figure 25. Bridge with Series Resistors ..................................................................................44LIST OF TABLESTable 1. Conversion Timing for Single Mode ..........................................................................36Table 2. Conversion Timing for Continuous Mode ..................................................................37Table 3. Command Byte Pointer .............................................................................................37Table 4. Output Coding for 16-bit CS5531 and CS5533 .........................................................39Table 5. Output Coding for 24-bit CS5532 and CS5534 .........................................................394 DS289PP5
CS5531/32/33/341. CHARACTERISTICS AND SPECIFICATIONSANALOG CHARACTERISTICS (VA+, VD+ = 5 V ±5%; VREF+ = 5 V; VA-, VREF-, DGND = 0 V;MCLK = 4.9152 MHz; OWR (Output Word Rate) = 60 Sps; Bipolar Mode; Gain = 32)(See Notes 1 and 2.)CS5531-AS/CS5533-ASParameterMin Typ Max UnitAccuracyLinearity Error - ±0.0015 ±0.003 %FSNo Missing Codes 16 - - BitsBipolar Offset - ±1 ±2 LSB 16Unipolar Offset - ±2 ±4 LSB 16Offset Drift (Notes 3 and 4) - 640/G + 5 - nV/°CBipolar Full Scale Error - ±8 ±31 ppmUnipolar Full Scale Error - ±16 ±62 ppmFull Scale Drift (Note 4) - 2 - ppm/°CCS5532-AS/CS5534-ASCS5532-BS/CS5534-BSParameterMin Typ Max Min Typ Max UnitAccuracyLinearity Error - ±0.0015 ±0.003 - ±0.0007 ±0.0015 %FSNo Missing Codes 24 - - 24 - - BitsBipolar Offset - ±16 ±32 - ±16 ±32 LSB 24Unipolar Offset - ±32 ±64 - ±32 ±64 LSB 24Offset Drift (Notes 3 and 4) - 640/G + 5 - - 640/G + 5 - nV/°CBipolar Full Scale Error - ±8 ±31 - ±8 ±31 ppmUnipolar Full Scale Error - ±16 ±62 - ±16 ±62 ppmFull Scale Drift (Note 4) - TBD - - 2 - ppm/°CNotes: 1. Applies after system calibration at any temperature within -40 °C ~ +85 °C.2. Specifications guaranteed by design, characterization, and/or test. LSB is 16 bits for the CS5531/33 andLSB is 24 bits for the CS5532/34.3. This specification applies to the device only and does not include any effects by external parasiticthermocouples. The PGIA contributes 5 nV of offset drift, and the modulator contributes 640/G nV ofoffset drift, where G is the amplifier gain setting.4. Drift over specified temperature range after calibration at power-up at 25 °C.DS289PP5 5
Page 1 and 2: CS5531/32/33/3416-Bit and 24-Bit AD
Page 3: CS5531/32/33/342.3.8. Filter Rate S
Page 7 and 8: CS5531/32/33/34ANALOG CHARACTERISTI
Page 9 and 10: TYPICAL RMS NOISE (nV), CS5532/34-B
Page 11 and 12: CS5531/32/33/34DYNAMIC CHARACTERIST
Page 13 and 14: CS5531/32/33/34CSSDISCLKt3MSB MSB-1
Page 15 and 16: CS5531/32/33/34-40°C to +85°C (MC
Page 17 and 18: CS5531/32/33/34Using the single con
Page 19 and 20: CS5531/32/33/342.2.2. Command Regis
Page 21 and 22: CS5531/32/33/34READ/WRITE INDIVIDUA
Page 23 and 24: CS5531/32/33/34PERFORM CALIBRATIOND
Page 25 and 26: CS5531/32/33/342.2.5. Reading/Writi
Page 27 and 28: CS5531/32/33/34φ1 Fineφ1 FineVREF
Page 29 and 30: CS5531/32/33/34Filter Rate Select,
Page 31 and 32: CS5531/32/33/34U/B (Unipolar / Bipo
Page 33 and 34: CS5531/32/33/342.5.4. Performing Ca
Page 35 and 36: CS5531/32/33/34sult in the loss of
Page 37 and 38: CS5531/32/33/34FRS (WR3-WR0)Clock C
Page 39 and 40: CS5531/32/33/34Unipolar InputVoltag
Page 41 and 42: CS5531/32/33/342.10. Clock Generato
Page 43 and 44: CS5531/32/33/34+2.5 V+3 V ~ +5 VAna
Page 45 and 46: CS5531/32/33/342.12. Getting Starte
Page 47 and 48: CS5531/32/33/34SDI - Serial Data In
Page 49 and 50: CS5531/32/33/346. PACKAGE DRAWINGSN
Page 51: • Notes •

CS5531/32/33/34 - Eshop-Rychle.cz

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