ZSSC3123 Datasheet

Nov 19, 2021

Page 4

© 2021 Renesas Electronics

11. Command Mode.........................................................................................................................................................................................40

11.1 Command Format..............................................................................................................................................................................40

11.2 Command Encodings ........................................................................................................................................................................41

11.3 Command Response and Data Fetch ...............................................................................................................................................41

12. EEPROM....................................................................................................................................................................................................44

12.1 Renesas Configuration Register (ZMDI_Config, EEPROM Word 02HEX) ..........................................................................................46

12.2 Capacitance Analog Front-End Configuration (C_Config, EEPROM Word 06HEX)............................................................................46

12.3 Temperature Analog Front End Configuration (T_Config, EEPROM Word 11HEX)............................................................................47

12.4 Customer Configuration Register (Cust_Config, EEPROM Word 1CHEX)..........................................................................................48

13. Calibration and Signal Conditioning Math...................................................................................................................................................49

13.1 Capacitance Signal Conditioning.......................................................................................................................................................49

13.2 Temperature Signal Compensation...................................................................................................................................................50

13.3 Limits on Coefficient Ranges.............................................................................................................................................................50

14. Application Circuit Examples......................................................................................................................................................................51

14.1 Digital Output with Optional Alarms...................................................................................................................................................51

14.2 Analog Output with Optional Alarms..................................................................................................................................................52

14.3 Bang-Bang Control System...............................................................................................................................................................53

14.4 Differential Input Capacitance ...........................................................................................................................................................54

14.5 External Reference Capacitor ...........................................................................................................................................................55

15. ESD/Latch-Up-Protection ...........................................................................................................................................................................55

16. Test.............................................................................................................................................................................................................56

17. Reliability ....................................................................................................................................................................................................56

18. Package Outline Drawings .........................................................................................................................................................................56

19. Example Marking Diagram for TSSOP14 Parts..........................................................................................................................................56

20. Storage and Soldering Conditions..............................................................................................................................................................56

21. Glossary .....................................................................................................................................................................................................57

22. Ordering Information...................................................................................................................................................................................57

23. Revision History..........................................................................................................................................................................................58

List of Figures

Figure 1. Pin Assignments for 4.4mm

 5.0mm 14-TSSOP – Top View............................................................................................................7

Figure 2. Best Case Settings (Typical Part)......................................................................................................................................................12

Figure 3. Worst Case Settings (Typical Part)....................................................................................................................................................12

Figure 4. Typical Current Consumption during Sleep Mode (No Measurements) ............................................................................................13

Figure 5. Output High Drive Strength Graph.....................................................................................................................................................14

Figure 6. Output Low Drive Strength Graph .....................................................................................................................................................14

Figure 7. First Order Fit (Typical Part) ..............................................................................................................................................................15

Figure 8. Second Order Fit (Typical Part).........................................................................................................................................................15

Figure 9. ZSSC3123 Block Diagram.................................................................................................................................................................16