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Renesas ZSSC3240CC1C
- Part No.:
- ZSSC3240CC1C
- Manufacturer:
- Renesas
- Category:
- Sensor and Detector Interfaces
- Package:
- Die
- Datasheet:
-
ZSSC3240CC1C.pdf
- Description:
- WAFER (SAWN) - FRAME
- Quantity:
- Payment:
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Product details
Overview
ZSSC3240CC1C 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 analog voltage (0–1V/0–5V), ratiometric, or 4–20mA current-loop outputs in industrial pressure, flow, and medical sensing systems.
For engineers reviewing the ZSSC3240CC1C datasheet, ZSSC3240CC1C pinout, ZSSC3240CC1C application, or ZSSC3240CC1C equivalent, this page provides verified technical context, real-world interface configurations, validated analog output options, confirmed diagnostic capabilities, and precise sensor compatibility data-including supported resistance range (0.5kΩ–60kΩ), supply voltage (2.7–5.5V), and on-chip temperature sensing.
Technical Context
The ZSSC3240CC1C 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 calibration coefficients stored in reprogrammable NVM. Its analog front-end supports ratiometric or current-mode sensor excitation with internal regulators supplying VDDB at 1.75V ±0.07V.
Digital interfaces include SPI (up to 10 MHz), I²C (Standard/Fast/High-Speed modes), and OWI (up to 100 kbit/s), all supporting both calibration and application-level communication. Three operational modes-wake-up-on-request, continuous/fast-response, and automatic cyclic measurement-enable optimized trade-offs among energy consumption, update rate (up to 2.91 kHz), accuracy, and self-diagnostic coverage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| ADC Resolution | 12/16/24-bit selectable; enables configurable noise-performance vs. speed trade-off (e.g., 13 kHz @ 12-bit, 0.21 kHz @ 24-bit) |
| DAC Resolution | 13/14/16-bit programmable; supports absolute (0–1V, 0–5V), ratiometric (2.5–97.5% VDD), or 4–20mA outputs |
| Supply Voltage | 2.7–5.5V (VDD); extends to 48V with external JFET via LDOctrl pin for high-voltage industrial applications |
| Sensor Resistance Range | 0.5kΩ–60kΩ; covers Pt100, strain gauges, RTDs, and NTC/PTC thermistors without external biasing circuitry |
| Operating Temperature | -40°C to +125°C; qualified for under-hood automotive, factory automation, and medical monitoring environments |
| Total Accuracy Error | ≤0.01% FSO (full-scale output); includes correction of sensor offset, sensitivity, temperature drift, and nonlinearity |
| Digital Interfaces | I²C (up to 3.4 Mbps), SPI (up to 10 MHz), OWI (up to 100 kbit/s); all support read/write of corrected sensor data and NVM programming |
Pinout & Package
Package: 4 × 4 mm² 24-QFN with wettable flanks (exposed thermal pad connected to VSS).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| INP / INN | Differential analog input | Accepts bridge/half-bridge sensor signals; supports common-mode input up to 1.2V and differential span up to ±700mV |
| VDDB / VSSB | Ratiometric sensor supply rails | Provides regulated 1.75V ±0.07V analog supply (VDDB) and return (VSSB) for bridge excitation; enables ratiometric accuracy |
| AOUT / OWI1 | Multi-function terminal | Delivers analog output (voltage/current) or serves as OWI bidirectional data line; includes short-circuit protection (10–12 mA limit) |
| LDOctrl | Analog control output | Drives external JFET for >5.5V supply regulation; enables high-voltage current-loop (7–48V) operation |
| EOC | Digital interrupt output | Signals end-of-conversion or user-configurable threshold crossing; supports asynchronous system wake-up and timing synchronization |
| MOSI/SDA, SCLK/SCL, MISO, SS | SPI/I²C interface pins | Shared pin assignments allow flexible digital interface selection without PCB redesign; pull-up required on MOSI/SDA and SCLK/SCL |
Key Features
| Feature | Design Value |
|---|---|
| 24-bit sensor-signal-conditioning math core | Executes full polynomial correction (offset, sensitivity, tempco, nonlinearity) using NVM-stored coefficients-no host MCU computation required |
| Programmable measurement scheduler | Enables deterministic cyclic sensing with configurable update rates (0.07–2.91 kHz), power gating, and self-test integration |
| On-chip diagnostics | Detects open/shorted sensor connections, memory integrity faults, and chip-level anomalies (chipping-check) per ISO 26262 ASIL-B readiness |
| Triple analog output configuration | Single-pin AOUT supports voltage (0–1V/0–5V), ratiometric (%VDD), or 4–20mA loop-reducing BOM count and board space vs. discrete solutions |
| Integrated temperature sensing | On-die sensor + TEXT pin support for external diode/RTD enables dual-point temperature compensation without external ICs |
Applications
| Industrial Pressure Sensing | Medical Blood Pressure Monitoring |
|---|---|
|
Use Scenario: High-reliability pressure transducers in hydraulic systems requiring long-term stability and temperature compensation across -40°C to 125°C. IC Role / Device Role / Timing Role: Sensor signal conditioner performing real-time offset/sensitivity/temperature drift correction and delivering ratiometric analog output synchronized to EOC interrupt. Use Value: Eliminates need for external PGA, ADC, DAC, and microcontroller-reducing component count by ≥4 while achieving ≤0.01% FSO accuracy over full temperature range. |
Use Scenario: Portable blood pressure cuffs requiring low-power, calibrated analog output compatible with analog front-ends of clinical-grade MCUs. IC Role / Device Role / Timing Role: Smart sensor hub converting piezoresistive bridge signals into stable 4–20mA current-loop output with wake-on-demand operation for battery life extension. Use Value: Enables <3.5 µA average current draw per measurement cycle and built-in diagnostics for FDA-compliant self-test reporting. |
| Smart HVAC Temperature Control | Factory Automation Flow Sensing |
|
Use Scenario: Compact thermostats using Pt100 RTD elements needing linearized, temperature-compensated voltage output for microcontroller ADC input. IC Role / Device Role / Timing Role: Resistive sensor conditioner with integrated current-source excitation for Pt100, delivering 0–5V absolute output referenced to VDD. Use Value: Supports direct Pt100 connection (0.5–60 kΩ) with on-chip 80 µA bias current-removing external current source and precision resistors. |
Use Scenario: Coriolis or differential-pressure flow meters in process plants requiring robust analog output immune to EMI and supply ripple. IC Role / Device Role / Timing Role: Signal conditioner providing 4–20mA current-loop output with FB feedback pin and external JFET regulation for 24V loop compliance. Use Value: PSRR >50 dB (DC–10 MHz) and CAOUT,EMC-optimized 22 nF filtering ensure stable output in noisy 4–20mA industrial environments. |
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 OWI, requires external EEPROM for calibration coefficients, 2.7–5.25V supply | Lacks native current-loop output and on-chip diagnostics; suited for lower-cost, non-safety-critical designs | Choose MAX1452ACM+T when budget constraints outweigh need for 24-bit correction, embedded diagnostics, or 4–20mA output. |
| AD7798BRUZ | 24-bit ΣΔ ADC only (no DAC, no math core, no NVM), SPI-only interface, no sensor excitation circuitry | Requires external PGA, DAC, microcontroller, and calibration storage-increasing design complexity and BOM cost | Choose AD7798BRUZ only if full custom signal chain implementation is preferred and host MCU handles all correction logic. |
Compared with MAX1452ACM+T and AD7798BRUZ, the ZSSC3240CC1C uniquely integrates sensor excitation, 24-bit correction math, reprogrammable NVM, triple-output analog drivers, and diagnostics in one QFN package-reducing total system footprint by ≥60% and eliminating firmware development for sensor linearization.
Availability
ZSSC3240CC1C is available at Aetrix Electronics and suitable for industrial pressure transducers, medical blood pressure monitors, smart HVAC thermostats, and factory automation flow sensors requiring stable component supply, long-lifecycle support, and traceable sourcing.
Supply support for ZSSC3240CC1C 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, and power solutions for automotive, industrial, and IoT applications.
The ZSSC3240CC1C belongs to Renesas' Sensor Signal Conditioner product line, designed specifically to replace multi-component analog signal chains in high-accuracy resistive sensor systems-enabling compact, calibrated, and safety-aware smart sensor modules.
FAQ
What sensor types does the ZSSC3240CC1C support?
The ZSSC3240CC1C supports resistive bridge and half-bridge sensors, Pt100 RTDs, external temperature diodes, and resistive divider strings. It accommodates sensor resistances from 0.5kΩ to 60kΩ and differential signal spans from 1mV/V to 500mV/V. The device provides on-chip current sources and ratiometric voltage supplies to directly drive these elements without external bias components-making ZSSC3240CC1C ideal for pressure, flow, and temperature sensing platforms.
Does the ZSSC3240CC1C support 4–20mA current-loop output?
Yes, the ZSSC3240CC1C supports 4–20mA current-loop output via its AOUT/OWI1 pin combined with the FB feedback pin and optional external JFET controlled by LDOctrl. The datasheet specifies IDRloop = 100–160 µA drive capability at the FB node, enabling compliant 4–20mA loop operation with 7–48V loop supply. This functionality is fully integrated-no external op-amps or transistors beyond the JFET are required for ZSSC3240CC1C-based current-loop designs.
What digital interfaces are available on the ZSSC3240CC1C?
The ZSSC3240CC1C offers three concurrent digital interfaces: SPI (up to 10 MHz), I²C (Standard/Fast/High-Speed modes), and One-Wire Interface (OWI, up to 100 kbit/s). Pins are multiplexed (e.g., MOSI/SDA, SCLK/SCL), allowing hardware-selectable interface mode. All interfaces support reading corrected sensor data (S/T values), raw ADC results, status registers, and full NVM programming-including calibration coefficient updates-making ZSSC3240CC1C adaptable to diverse host controller architectures.
How does the ZSSC3240CC1C handle temperature compensation?
The ZSSC3240CC1C performs full temperature compensation using both its on-die temperature sensor and external sensing via the TEXT pin (for diodes or RTDs). Its 24-bit math core applies stored polynomial coefficients to correct sensor offset, sensitivity, and nonlinearity versus temperature. Supported configurations include bridge-as-temperature-detector, external diode biasing, and Pt100 excitation-all managed internally. This eliminates need for external temperature sensors or host-based compensation algorithms in ZSSC3240CC1C implementations.
What is the operating temperature range of the ZSSC3240CC1C?
The ZSSC3240CC1C operates from -40°C to +125°C ambient temperature, qualified per industrial and extended automotive requirements. This range is guaranteed across all specified performance parameters-including ADC accuracy, DAC linearity, PGA gain error, and NVM retention-without derating. The device's on-chip diagnostics (e.g., sensor connection check, memory integrity) remain active across the full range, making ZSSC3240CC1C suitable for under-hood, factory-floor, and portable medical applications where thermal resilience is critical.
ZSSC3240CC1C 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
ZSSC3240CC1C FAQ
1.How can I place an order for ZSSC3240CC1C through Aetrix?
Please submit a Request for Quotation (RFQ) for ZSSC3240CC1C 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 ZSSC3240CC1C reliable?
The price and inventory of ZSSC3240CC1C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ZSSC3240CC1C is usually 5 days.
3.What payment methods are accepted for ZSSC3240CC1C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ZSSC3240CC1C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ZSSC3240CC1C?
ZSSC3240CC1C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ZSSC3240CC1C 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 ZSSC3240CC1C?
For technical support, including ZSSC3240CC1C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ZSSC3240CC1C requirements.
6.How does Aetrix verify that ZSSC3240CC1C is sourced from the original manufacturer or authorized distributors?
All ZSSC3240CC1C 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 ZSSC3240CC1C meets industry standards.
7.What is the process for return or replacement of ZSSC3240CC1C?
All ZSSC3240CC1C units undergo pre-shipment inspection (PSI). If there is an issue with ZSSC3240CC1C, 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 ZSSC3240CC1C part is unused and in its original packaging.
Return procedure for ZSSC3240CC1C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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