Datasheet ZSSC3240 (Renesas) - 2

ZSSC3240 Physical Characteristics Typical Applications
• Supply voltage, VDD: 2.7V to 5.5V; • Calibrated, continuously operating sensors with with external transistor, for example digital interface and/or analog output: (absolute or JFET: 5V to 48V ratiometric) voltage or current loop output • Operating temperature: -40°C to 125°C • Enables smart, digital sensors for energy-efficient solutions • Supported sensor elements: 0.5kΩ to 60kΩ • Pressure, flow, and level sensing • Available as die on wafers or 4 × 4 mm2 24-QFN with wettable flanks, allowing visual inspection of • Industrial applications; e.g. process/factory QFN reflow quality automation • Consumer / white goods, e.g. HVAC, weight scales • Medical applications, e.g. blood pressure, continuous smart health monitors
Block Diagram
Sensor Supply: voltage / ratiometric LDOctrl TEXT external UP VDDA int -S Internal Transistor VDD S EN V Internal Voltage TP Regulation S Sensor AGND / CM IC Bias Current Temp. Sensor X Regulators Bias VDDB V Generator Generator VSS TN Sensor Element MU Current Power Ctr. Ana Dig Sensor Supply:
ZSSC3240
current mode DAC T AOUT / 13-16Bit OU OWI1 X er A MU RESQ INP Input tiplex D ul M PGA FB VSSB 12-24Bit OWI OWI2in INN Digitial Control and EOC Math Core Analog Clock SCLK/SCL Sensor System Chipping Power-ON SPI Generator SS Connection Control Check Reset NVM Diagnostics Oscillator MOSI/SDA Unit I2C MISO
Typical Application Examples
Digital Half-Bridge Sensor, e.g. PT100 Analog Sensor with Absolute Voltage Out VDD (2.7-5.5V) D VDD VDDB VD VSS (2.7 to 5.5V VDDB VDD INP VSS Rt C PTC / 1 NTC VSSB INP T,EM AO UT / OWI1
ZSSC3240
CAOU OWI 4 INN VSSB AOUT / OWI1
ZSSC3240 VOUT, absolute
A L I 4 INN (0 to 1V / 0 to 5V) SD SC / / Sensor Half- I K SS OW L ESQ OS IS Bridge R M SC M O Sensor Bridge Digital Interface: I2C or SPI or OWI Sensor with Ratiometric Voltage Output and Digital Interface Analog Sensor with Current Loop Output, OWI, and External JFET VDD Loop+ (2.7 to 5.5V) 5 to (7 to 48V) 5.5V D VDDB OWI VD VSS INP
VOUT, ratiometric
D AO UT / (2.5% to 97.5% of VDD trl VSSB c VDDB VD OWI1 O
ZSSC3240
D VSS L 4 INN INP FB A L Sensor Bridge I VSSB AO UT / OWI1 SD SC / / I V
ZSSC3240
K SS OW DD ESQ OS L IS (2.7 to 4 INN OWI2in R M SC M O 5.5V) Digital Interface: I2C or SPI or OWI Sensor Bridge Loop- 4 to 20mA Rsens Apr.15.20 Page 2 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