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Renesas ZSSC3240CC2B
- Part No.:
- ZSSC3240CC2B
- Manufacturer:
- Renesas
- Category:
- Sensor and Detector Interfaces
- Package:
- Die
- Datasheet:
-
ZSSC3240CC2B.pdf
- Description:
- IC SENSOR SIGNAL CONDITIONER
- Quantity:
- Payment:
- Shipping:
Inventory:1,850
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Product details
Overview
ZSSC3240CC2B from Renesas is a sensor signal conditioning IC (SSC) for resistive bridge, half-bridge, Pt100, and external diode sensors, featuring 24-bit ADC resolution, 16-bit DAC output, programmable PGA gain (1.32–540 V/V), on-chip temperature sensing, and digital correction of offset, sensitivity, temperature drift, and non-linearity. It enables calibrated smart sensor modules in industrial pressure and flow measurement systems.
For engineers reviewing the ZSSC3240CC2B datasheet, ZSSC3240CC2B pinout, ZSSC3240CC2B application, or ZSSC3240CC2B equivalent, key selection criteria include supported sensor configurations (bridge/half-bridge/Pt100), analog output options (0–1V/0–5V ratiometric/4–20mA), I²C/SPI/OWI interface compatibility, and diagnostic coverage for sensor connection and memory integrity.
Technical Context
The ZSSC3240CC2B integrates a 24-bit sensor-signal-conditioning math core executing calibration algorithms using coefficients stored in reprogrammable NVM, supporting cyclic measurement scheduling with configurable update rates (0.07–2.91 kHz) and self-diagnostic coverage including chipping-check and memory integrity verification.
Its analog front-end includes a programmable-gain amplifier (PGA) with 120 gain steps and ±2.5% gain error, dual-mode sensor supply (ratiometric voltage or current source), and support for external temperature sensing via TEXT pin with 0.5–1.25 V input range and 0.5–60 kΩ sensor resistance compatibility.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| ADC Resolution | 12–24-bit selectable; determines raw digitization fidelity and noise floor (ENOB up to 18.1 bits) |
| DAC Resolution | 13–16-bit programmable; enables precise analog output scaling for 0–1V, 0–5V, or ratiometric voltage outputs |
| PGA Gain Range | 1.32–540 V/V in 120 steps; accommodates sensor signal spans from 1 mV/V to 500 mV/V |
| Supply Voltage | 2.7–5.5 V (internal LDO); extends to 5–48 V with external JFET regulation via LDOctrl pin |
| Operating Temp | −40°C to +125°C; qualified for industrial and automotive under-hood environments |
| Sensor Resistance | 0.5–60 kΩ; supports Pt100, NTC/PTC thermistors, and precision bridge elements |
| Digital Interfaces | I²C (up to 3.4 MHz), SPI (up to 10 MHz), OWI (up to 100 kbit/s); enables flexible host connectivity and field calibration |
Pinout & Package
Package: 4 × 4 mm² 24-QFN with wettable flanks (RoHS-compliant, JEDEC MO-220).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| INP / INN | Differential sensor input | Accepts bridge/half-bridge signals; supports common-mode input up to 1.2 V and differential range ±700 mV |
| VDDB / VSSB | Sensor supply rails | Provides ratiometric bridge excitation (1.68–1.80 V) or serves as sensor signal reference |
| AOUT / OWI1 | Analog output / OWI data line | Delivers corrected analog output (voltage or current-loop) or functions as bidirectional OWI interface |
| MOSI/SDA / SCLK/SCL / MISO / SS | Digital interface I/O | Configurable for SPI or I²C; supports standard/fast/high-speed I²C modes and CPHA-0/1 SPI timing |
| EOC | End-of-conversion interrupt | Active-low pulse signals completion of SSC cycle; used for synchronous host polling or interrupt-driven readout |
| RESQ | Reset input | Low-active digital reset with internal pull-up; initiates cold start and clears internal state |
| LDOctrl | External regulator control | Drives gate of external JFET to regulate VDD up to 48 V; enables high-voltage industrial sensor modules |
| TEXT | External temp sensor drive | Supplies bias current to external diode or RTD; built-in 150 Ω series resistor protects pad during current-mode operation |
Key Features
| Feature | Design Value |
|---|---|
| 24-bit math core with NVM | Executes sensor-specific correction algorithms using factory- or field-programmed coefficients for offset, sensitivity, tempco, and non-linearity |
| Triple analog output modes | Configurable 0–1V/0–5V absolute, VDD-ratiometric (2.5–97.5%), or 4–20mA current loop - all with 16-bit DAC resolution |
| Programmable measurement scheduler | Optimizes trade-off between update rate (0.07–2.91 kHz), power (as low as 3.5 µA avg), accuracy, and diagnostic coverage per application need |
| On-chip diagnostics | Detects open/short sensor connections, chip integrity (chipping-check), and NVM corruption - reported via CHECK_DIAG command |
| Multi-supply topology | Internal LDO for VDD (2.7–5.5 V) plus LDOctrl-driven external regulation (5–48 V) - supports both low-power and high-voltage industrial designs |
Applications
| Industrial Pressure Sensing | Smart HVAC Temperature Monitoring |
|---|---|
Use Scenario: High-accuracy differential pressure measurement in process automation using silicon piezoresistive bridges. IC Role / Device Role / Timing Role: Signal conditioner performing PGA amplification, 24-bit digitization, and real-time 26-bit math-based correction of bridge non-linearity and thermal drift. Use Value: Enables <0.01% FSO total error over −40°C to +125°C without external compensation components. | Use Scenario: Digital thermostat with Pt100 RTD sensing and analog 4–20mA output for building management systems. IC Role / Device Role / Timing Role: Front-end conditioner powering Pt100 via current source, digitizing resistance, applying polynomial temperature correction, and driving current-loop output. Use Value: Eliminates discrete op-amps, references, and DACs while supporting auto-calibration and diagnostics for field maintenance. |
| Medical Blood Pressure Monitoring | White Goods Weight Scale Module |
Use Scenario: Portable sphygmomanometer requiring low-power, high-accuracy analog output synchronized to cuff inflation cycles. IC Role / Device Role / Timing Role: Wake-on-request SSC performing single-shot measurements with EOC-triggered readout and 0–5V absolute analog output. Use Value: Achieves sub-millimeter Hg resolution with <1.5 µA idle current and integrated sensor diagnostics for safety compliance. | Use Scenario: Consumer-grade kitchen scale using half-bridge load cell with ratiometric voltage output and I²C calibration interface. IC Role / Device Role / Timing Role: Bridge signal conditioner with VDD-ratiometric AOUT (2.5–97.5% VDD) and SPI-based factory calibration storage in NVM. Use Value: Reduces BOM count by integrating PGA, ADC, DAC, regulator, and diagnostics into single 4×4 mm QFN package. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar sensor signal conditioning applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX1452ACM+T | 16-bit ADC/DAC, no integrated temperature sensor, requires external EEPROM for coefficients, 5V-only supply | Lacks on-chip diagnostics and multi-interface support; limited to fixed 5V systems without LDOctrl capability | Choose when legacy 5V-only design and lower resolution suffice; avoid if Pt100 or wide-temp diagnostics required |
| AD7798BRUZ | 24-bit sigma-delta ADC only, no DAC, no math core, no NVM, no sensor supply generation | Requires external PGA, DAC, regulator, and microcontroller for correction - increases system complexity and footprint | Choose only as bare ADC in designs where full SSC functionality is implemented externally |
Compared with MAX1452ACM+T and AD7798BRUZ, the ZSSC3240CC2B delivers integrated signal chain functionality - combining PGA, 24-bit ADC, 16-bit DAC, 26-bit math core, NVM, diagnostics, and multi-supply support - reducing component count, PCB area, and firmware development effort for smart sensor modules.
Availability
ZSSC3240CC2B is available at Aetrix Electronics and suitable for industrial pressure sensing, HVAC temperature monitoring, medical blood pressure devices, and white goods weight scale modules requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for ZSSC3240CC2B 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 delivering microcontrollers, analog, power, and SoC solutions for automotive, industrial, infrastructure, and IoT applications.
The ZSSC3240CC2B belongs to Renesas' Sensor Signal Conditioner product line, designed specifically to replace discrete analog signal chains in high-accuracy resistive sensor applications with integrated calibration, diagnostics, and multi-output flexibility.
FAQ
What sensor types does the ZSSC3240CC2B support?
The ZSSC3240CC2B supports resistive bridge and half-bridge sensors, Pt100 RTDs, NTC/PTC thermistors, and external temperature diodes. It accepts sensor resistances from 0.5 kΩ to 60 kΩ and accommodates signal spans from 1 mV/V to 500 mV/V via its programmable PGA. The ZSSC3240CC2B also provides dedicated TEXT pin biasing and VDDB/VSSB ratiometric excitation for accurate temperature-compensated measurements.
How does the ZSSC3240CC2B handle temperature compensation?
The ZSSC3240CC2B performs full digital temperature compensation using its 24-bit math core and coefficients stored in reprogrammable NVM. It corrects sensor offset, sensitivity drift, and non-linearity across −40°C to +125°C using either its on-chip temperature sensor or external sources (e.g., bridge-as-thermistor, TEXT-driven diode). The ZSSC3240CC2B applies correction algorithms in real time during each measurement cycle, enabling <0.01% FSO accuracy without external components.
What analog output configurations are available on the ZSSC3240CC2B?
The ZSSC3240CC2B offers three analog output modes: absolute voltage (0–1V or 0–5V), VDD-ratiometric voltage (2.5–97.5% of VDD), and 4–20mA current loop. Output selection is configured via NVM settings and supported by its 13–16-bit DAC. The ZSSC3240CC2B also allows concurrent analog output and OWI communication using AOUT/OWI1 and OWI2in pins, with short-circuit protection limiting AOUT current to 10–12 mA.
Can the ZSSC3240CC2B operate above 5.5V supply?
Yes, the ZSSC3240CC2B supports supply voltages up to 48 V using its LDOctrl pin to drive an external JFET or transistor for regulation. In this configuration, the internal LDO is bypassed and the external regulator supplies VDD. The ZSSC3240CC2B maintains full functionality - including sensor excitation, ADC, DAC, and interfaces - across the extended 5–48 V range, making it suitable for industrial 24V and 48V bus-powered sensor nodes.
What diagnostics does the ZSSC3240CC2B provide?
The ZSSC3240CC2B includes on-chip diagnostics for sensor connection (open/short detection), chip integrity (chipping-check), and memory integrity (NVM CRC verification). Diagnostic status is accessible via the CHECK_DIAG command, which populates a 16-bit register reporting faults per bit. The ZSSC3240CC2B also supports EOC signaling and interrupt thresholds for output-level monitoring, enabling fail-safe behavior in safety-critical applications.
ZSSC3240CC2B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- Die
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Resistive
- 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
ZSSC3240CC2B FAQ
1.How can I place an order for ZSSC3240CC2B through Aetrix?
Please submit a Request for Quotation (RFQ) for ZSSC3240CC2B 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 ZSSC3240CC2B reliable?
The price and inventory of ZSSC3240CC2B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ZSSC3240CC2B is usually 5 days.
3.What payment methods are accepted for ZSSC3240CC2B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ZSSC3240CC2B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ZSSC3240CC2B?
ZSSC3240CC2B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ZSSC3240CC2B 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 ZSSC3240CC2B?
For technical support, including ZSSC3240CC2B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ZSSC3240CC2B requirements.
6.How does Aetrix verify that ZSSC3240CC2B is sourced from the original manufacturer or authorized distributors?
All ZSSC3240CC2B 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 ZSSC3240CC2B meets industry standards.
7.What is the process for return or replacement of ZSSC3240CC2B?
All ZSSC3240CC2B units undergo pre-shipment inspection (PSI). If there is an issue with ZSSC3240CC2B, 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 ZSSC3240CC2B part is unused and in its original packaging.
Return procedure for ZSSC3240CC2B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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