link to page 6 link to page 7 link to page 8 link to page 8 link to page 8 link to page 11 link to page 12 link to page 12 link to page 13 link to page 15 link to page 17 link to page 17 link to page 22 link to page 24 link to page 24 link to page 27 link to page 28 link to page 32 link to page 32 link to page 34 link to page 34 link to page 37 link to page 39 link to page 40 link to page 43 link to page 55 link to page 58 link to page 59 link to page 59 link to page 59 link to page 60 link to page 60 link to page 61 Datasheet ZSSC3240 Sensor Signal Conditioner IC for Resistive Sensors Contents1.Pin Assignments .. 62.Pin Descriptions .. 73.Absolute Maximum Ratings .. 84.Recommended Operating Conditions ... 85.Electrical Characteristics .. 86.Device Description .. 11 6.1 Signal Flow .. 12 6.2 Analog (Sensor) Front-End .. 12 6.2.1. Programmable-Gain Amplifier (PGA) .. 13 6.2.2. Analog-to-Digital Converter (ADC) .. 15 6.2.3. Internal Temperature Sensor .. 17 6.2.4. Supported Supplies for Sensor Elements and Additional, External Temperature Sensing .. 17 6.3 On-Chip Diagnostics .. 22 6.4 Digital Interfaces .. 24 6.4.1. SPI ... 24 6.4.2. I2C ... 27 6.4.3. One-Wire-Interface, OWI .. 28 6.5 Measurement and Output Options .. 32 6.5.1. Single Measurements, Digital Raw Results, and SSC Results .. 32 6.5.2. Cyclic, Continuous, Repeated Measurements – Measurement Scheduler .. 34 6.5.3. Analog Outputs: Digital-to-Analog Converter (DAC) ... 34 6.5.4. Output Interrupt Signaling ... 37 6.6 System Setup and Control ... 39 6.6.1. Digital Commands ... 40 6.6.2. Nonvolatile Memory (NVM) ... 43 6.6.3. Digital Sensor-Signal-Conditioning Mathematics .. 55 6.7 External, Extra LDO (LDOctrl) for Applications for > 5.5V .. 58 7.Calibration .. 598.Package Outline Drawings .. 599.Marking Diagram .. 5910.Ordering Information ... 6011.Glossary .. 6012.Revision History .. 61 Apr.15.20 Page 3 Document Outline 1. Pin Assignments 2. Pin Descriptions 3. Absolute Maximum Ratings 4. Recommended Operating Conditions 5. Electrical Characteristics 6. Device Description 6.1 Signal Flow 6.2 Analog (Sensor) Front-End 6.2.1. Programmable-Gain Amplifier (PGA) 6.2.2. Analog-to-Digital Converter (ADC) 6.2.3. Internal Temperature Sensor 6.2.4. Supported Supplies for Sensor Elements and Additional, External Temperature Sensing 6.3 On-Chip Diagnostics 6.4 Digital Interfaces 6.4.1. SPI 6.4.2. I2C 6.4.3. One-Wire-Interface, OWI 6.5 Measurement and Output Options 6.5.1. Single Measurements, Digital Raw Results, and SSC Results 6.5.2. Cyclic, Continuous, Repeated Measurements – Measurement Scheduler 6.5.3. Analog Outputs: Digital-to-Analog Converter (DAC) 6.5.4. Output Interrupt Signaling 6.6 System Setup and Control 6.6.1. Digital Commands 6.6.2. Nonvolatile Memory (NVM) 6.6.3. Digital Sensor-Signal-Conditioning Mathematics 6.7 External, Extra LDO (LDOctrl) for Applications for > 5.5V 7. Calibration 8. Package Outline Drawings 9. Marking Diagram 10. Ordering Information 11. Glossary 12. Revision History