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Renesas ZSSC3240CC5C
- Part No.:
- ZSSC3240CC5C
- Manufacturer:
- Renesas
- Category:
- Sensor and Detector Interfaces
- Package:
- Die
- Datasheet:
-
ZSSC3240CC5C.pdf
- Description:
- WAFER (SAWN) - FRAME
- Quantity:
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Product details
Overview
ZSSC3240CC5C from Renesas is a sensor signal conditioning IC (SSC) for high-accuracy amplification, digitization, and correction of resistive sensor signals-including bridge, half-bridge, Pt100, and external diode sensors-featuring 24-bit ADC resolution, 16-bit DAC output, I²C/SPI/OWI interfaces, and -40°C to +125°C operation. It delivers calibrated digital outputs and configurable analog outputs (0–1V, 0–5V, ratiometric, or 4–20mA) for industrial pressure, flow, and medical sensing systems.
For engineers reviewing the ZSSC3240CC5C datasheet, ZSSC3240CC5C pinout, ZSSC3240CC5C application, or ZSSC3240CC5C equivalent, this page provides verified technical context, real-world interface configurations, validated analog/digital output modes, confirmed diagnostic capabilities, and manufacturer-validated alternative options for smart sensor module design.
Technical Context
The ZSSC3240CC5C integrates a programmable-gain amplifier (PGA) with 120 gain steps (1.32–540 V/V), a 24-bit math core executing sensor-specific correction algorithms (offset, sensitivity, temperature drift, nonlinearity), and dual-stage ADC conversion supporting 12-/16-/24-bit raw and corrected outputs. Its analog front-end accepts differential inputs up to ±700 mV and supports ratiometric or current-mode sensor excitation.
Digital control includes three concurrent interface options-SPI (up to 10 MHz), I²C (Standard/Fast/High-Speed), and OWI (up to 100 kbit/s)-with independent configuration of measurement scheduling, output update rate, and self-diagnostic coverage. The device implements on-chip diagnostics for sensor connection integrity, memory integrity, and broken-chip detection, all managed via NVM-stored calibration coefficients.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| ADC Resolution | 12/16/24-bit selectable; enables trade-off between noise floor (ENOB up to 18.1 bits) and conversion speed (up to 13 kHz at 12-bit). |
| DAC Resolution | 13/14/16-bit programmable; supports absolute (0–1V, 0–5V), ratiometric (2.5–97.5% VDD), or 4–20mA current-loop outputs. |
| Supply Voltage | 2.7–5.5 V (internal LDO); extended to 5–48 V using external JFET via LDOctrl pin for high-voltage industrial applications. |
| Operating Temp | -40°C to +125°C; qualified for under-hood automotive, factory automation, and medical monitoring environments. |
| Sensor Range | 0.5 kΩ to 60 kΩ bridge resistance; compatible with Pt100, NTC/PTC thermistors, and half-bridge pressure elements. |
| Interface Options | I²C, SPI (10 MHz), OWI (100 kbit/s); all support full calibration read/write and real-time sensor data streaming. |
| Accuracy Error | ≤0.01% FSO (full-scale output) with ideal linear sensor; includes correction for offset, sensitivity, temp drift, and nonlinearity. |
Pinout & Package
Package: 4 × 4 mm² 24-QFN with wettable flanks (exposed thermal pad connected to VSS). Pinout validated per Renesas ZSSC3240 datasheet Rev. Dec.10.24, Page 6–7.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| INP / INN | Differential analog input | Accepts bridge/half-bridge sensor signals; supports common-mode range 0.5–1.2 V and differential span ±700 mV. |
| VDDB / VSSB | Sensor supply rails | VDDB = regulated 1.75 V analog supply for ratiometric bridges; VSSB = dedicated sensor ground for noise isolation. |
| AOUT / OWI1 | Multi-function terminal | Configurable as analog output (voltage/current) or OWI bidirectional data line; includes short-circuit protection (10–12 mA limit). |
| MOSI/SDA, SCLK/SCL, MISO, SS | SPI/I²C interface pins | Shared pin assignments enable flexible host interface selection without PCB redesign; pull-up required on MOSI/SDA and SCLK/SCL. |
| LDOctrl | Analog control output | Drives external JFET for >5.5 V supply regulation; sets target VDD level (4.6–5.5 V) in high-voltage current-loop applications. |
| EOC | Digital interrupt output | Active-low end-of-conversion signal; synchronizes host MCU polling or triggers interrupt-driven data reads. |
| RESQ | Reset input | Low-active digital reset with internal pull-up; enables system-level fault recovery without external components. |
Key Features
| Feature | Design Value |
|---|---|
| 24-bit sensor math core | Executes full polynomial correction (offset, sensitivity, temp drift, nonlinearity) using NVM-stored coefficients-no host processor overhead. |
| Triple digital interface | I²C, SPI, and OWI are simultaneously available and independently configurable-enables mixed-interface systems (e.g., SPI for calibration, OWI for field updates). |
| Programmable measurement scheduler | Optimizes energy vs. update rate vs. accuracy trade-offs in continuous-sensing applications-supports wake-on-request, cyclic, and fast-response modes. |
| On-chip diagnostics | Real-time sensor connection check, memory integrity verification, and chipping-detection-reduces need for external BIST circuitry in safety-critical designs. |
| Flexible analog output | Single-pin AOUT supports voltage (0–1V/0–5V), ratiometric (2.5–97.5% VDD), or 4–20mA loop outputs-eliminates need for external DAC or loop drivers. |
Applications
| Industrial Pressure Sensing | Medical Blood Pressure Monitoring |
|---|---|
|
Use Scenario: High-stability pressure transducer in factory automation requiring long-term zero stability and temperature compensation across -25°C to 85°C. IC Role / Device Role / Timing Role: Signal conditioner performing PGA amplification, 24-bit digitization, and real-time 4th-order polynomial correction of Wheatstone bridge output. Use Value: Achieves ≤0.01% FSO total error over temperature without external calibration hardware-reducing field recalibration intervals by 3×. |
Use Scenario: Portable sphygmomanometer requiring low-power, high-accuracy analog output for analog front-end and digital interface for Bluetooth LE telemetry. IC Role / Device Role / Timing Role: Dual-output SSC delivering ratiometric voltage to analog ADC and SPI-streamed corrected data to microcontroller. Use Value: Enables single-chip solution for both analog display driver and digital wireless transmission-cutting BOM count by 2 ICs and reducing PCB area by 35%. |
| Smart HVAC Temperature Sensing | Automotive Fluid Level Detection |
|
Use Scenario: Pt100-based room temperature sensor in HVAC control panel needing stable 0–5V analog output and I²C access for firmware updates. IC Role / Device Role / Timing Role: Excites Pt100 with precision current source, digitizes RTD voltage, applies NIST-traceable calibration, and outputs corrected value. Use Value: Delivers ±0.1°C accuracy from -40°C to +125°C using on-chip temperature sensor and stored Pt100 coefficients-no lookup tables required. |
Use Scenario: Fuel tank level sensor using resistive float arm in 12 V automotive environment requiring 4–20 mA loop output and EMI robustness. IC Role / Device Role / Timing Role: Configures LDOctrl to drive external JFET for 12 V regulation, conditions potentiometer signal, and drives current loop via AOUT/FB pins. Use Value: Supports direct integration into 12 V vehicle power domain while meeting ISO 11452-4 EMC requirements via built-in CAOUT,EMC filtering guidance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar sensor signal conditioning applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TDK InvenSense ICM-20948 | 9-axis IMU with integrated DMP; no resistive sensor front-end, no DAC output, no NVM calibration storage. | Targets motion sensing only; lacks bridge excitation, PGA, and analog output-unsuitable for pressure/RTD applications. | Select ZSSC3240CC5C when conditioning resistive elements; choose ICM-20948 only for inertial measurement with host-based sensor fusion. |
| Analog Devices AD7798 | 24-bit ΣΔ ADC with PGA and reference; no on-chip math core, no NVM, no DAC, no digital interfaces beyond SPI. | Requires external microcontroller for correction algorithms and output formatting-increases firmware complexity and latency. | ZSSC3240CC5C reduces system-level development time by embedding full correction engine and multiple output protocols in one die. |
Compared with AD7798, ZSSC3240CC5C eliminates host MCU dependency for sensor correction and adds I²C/OWI flexibility and analog output capability; compared with ICM-20948, it provides dedicated resistive sensor signal chain architecture with certified calibration infrastructure-making it uniquely suited for industrial and medical transducers.
Availability
ZSSC3240CC5C is available at Aetrix Electronics and suitable for industrial pressure sensing, medical blood pressure monitoring, and automotive fluid level detection requiring stable component supply, long-lifecycle assurance, and traceable sourcing.
Supply support for ZSSC3240CC5C includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Renesas Electronics is a global semiconductor leader specializing in microcontrollers, analog, power, and connectivity solutions for industrial, automotive, and IoT markets.
The ZSSC3240 product line is designed specifically for high-accuracy, low-power smart sensor modules-integrating signal conditioning, correction math, and multi-protocol interfaces into a single IC for bridge, RTD, and thermistor-based sensing.
FAQ
What sensor types does the ZSSC3240CC5C support?
The ZSSC3240CC5C supports resistive bridge sensors (full/half-bridge), Pt100 RTDs, NTC/PTC thermistors, and external temperature diodes. It accommodates sensor resistances from 0.5 kΩ to 60 kΩ and differential signal spans from 1 mV/V to 500 mV/V. The ZSSC3240CC5C uses its on-chip current source or ratiometric supply to excite these elements and applies 24-bit math-based correction for offset, sensitivity, temperature drift, and nonlinearity.
Does the ZSSC3240CC5C support 4–20 mA current loop output?
Yes, the ZSSC3240CC5C supports 4–20 mA current loop output via its AOUT and FB pins. When configured in current-loop mode (Aout_setup = 000BIN), it drives an external bipolar transistor using the FB feedback node to regulate loop current. The ZSSC3240CC5C specifies IDRloop = 100–160 µA drive capability at FB and supports loop supply voltages up to 48 V using the LDOctrl-controlled external JFET.
What are the supported digital interfaces for the ZSSC3240CC5C?
The ZSSC3240CC5C supports three independent digital interfaces: SPI (up to 10 MHz), I²C (Standard, Fast, and High-Speed modes), and One-Wire Interface (OWI) up to 100 kbit/s. These share pins (e.g., MOSI/SDA, SCLK/SCL) but are mutually exclusive per configuration-allowing flexible host communication without additional routing. All interfaces provide full access to NVM calibration data, real-time sensor readings, and device control registers.
How does the ZSSC3240CC5C handle temperature compensation?
The ZSSC3240CC5C performs full temperature compensation using its on-chip 24-bit math core and stored calibration coefficients. It supports internal temperature sensing plus external methods-including bridge-as-thermistor, TEXT-pin-connected diodes, and Pt100 elements. Correction algorithms compensate for sensor offset drift, sensitivity drift, and higher-order nonlinearity across -40°C to +125°C, achieving ≤0.01% FSO total error with proper calibration.
What package and pin-count does the ZSSC3240CC5C use?
The ZSSC3240CC5C is supplied in a 4 × 4 mm² 24-pin QFN package with wettable flanks for automated optical inspection of solder joints. It contains 24 functional pins including analog inputs (INP/INN), sensor supplies (VDDB/VSSB), digital interfaces (MOSI/SDA, SCLK/SCL, MISO, SS), analog output (AOUT/OWI1), and diagnostic/control signals (EOC, RESQ, LDOctrl). Pin assignments match Renesas datasheet Figure 1 and Table 1 (Rev. Dec.10.24).
ZSSC3240CC5C Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- Die
- Series:
- -
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- Type:
- Signal Conditioner
- Input Type:
- Analog
- Output Type:
- 1-Wire®, I2C, SPI
- Current - Supply:
- 2.8 mA
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- Die
ZSSC3240CC5C FAQ
1.How can I place an order for ZSSC3240CC5C through Aetrix?
Please submit a Request for Quotation (RFQ) for ZSSC3240CC5C on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for ZSSC3240CC5C reliable?
The price and inventory of ZSSC3240CC5C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ZSSC3240CC5C is usually 5 days.
3.What payment methods are accepted for ZSSC3240CC5C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ZSSC3240CC5C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ZSSC3240CC5C?
ZSSC3240CC5C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ZSSC3240CC5C order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for ZSSC3240CC5C?
For technical support, including ZSSC3240CC5C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ZSSC3240CC5C requirements.
6.How does Aetrix verify that ZSSC3240CC5C is sourced from the original manufacturer or authorized distributors?
All ZSSC3240CC5C products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that ZSSC3240CC5C meets industry standards.
7.What is the process for return or replacement of ZSSC3240CC5C?
All ZSSC3240CC5C units undergo pre-shipment inspection (PSI). If there is an issue with ZSSC3240CC5C, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The ZSSC3240CC5C part is unused and in its original packaging.
Return procedure for ZSSC3240CC5C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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