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Renesas ZSSC3241DL3R
- Part No.:
- ZSSC3241DL3R
- Manufacturer:
- Renesas
- Category:
- Sensor and Detector Interfaces
- Package:
- 24-VFQFN Exposed Pad
- Datasheet:
-
ZSSC3241DL3R.pdf
- Description:
- PQFN / 24 / 4X4MM G1 - TAPE&REEL
- Quantity:
- Payment:
- Shipping:
Inventory:2,558
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Product details
Overview
ZSSC3241DL3R from Renesas is a sensor signal conditioning IC (SSC) for high-accuracy amplification, digitization, and digital correction of resistive sensor signals-including bridge, half-bridge, Pt100, and external diode sensors. It features a 24-bit ADC, 16-bit DAC, dual math cores (26-bit main + 16-bit support), nonvolatile memory for calibration coefficients, and operates from 2.7V to 5.5V across –40°C to 125°C. It enables smart analog/digital sensor modules in industrial pressure and medical blood pressure monitoring.
For engineers reviewing the ZSSC3241DL3R datasheet, ZSSC3241DL3R pinout, ZSSC3241DL3R application, or ZSSC3241DL3R equivalent, this page delivers verified technical context, real-world interface options (I²C/SPI/OWI), analog output configurations (0–1V, 0–5V, ratiometric, 4–20mA), and validated alternatives for calibrated resistive sensor signal chains.
Technical Context
The ZSSC3241DL3R integrates a programmable-gain amplifier (PGA) with 120 gain steps (1.32–540 V/V), a 24-bit ADC supporting 0.21–5.81 kHz single-conversion rates, and two independent math cores: a 26-bit primary core for full sensor correction (offset, sensitivity, temperature drift, nonlinearity) and a 16-bit secondary core for dual-domain (analog + digital) output optimization.
It supports three operational modes-wake-up-on-request, continuous/fast-response, and automatic cyclic measurement-with programmable scheduling balancing energy use, update rate (up to 2.5 kHz), and self-diagnostic coverage. Analog outputs include absolute voltage (0–1V/0–5V), VDD-ratiometric (2.5–97.5% VDD), and 4–20mA current loop with external JFET regulation up to 48V supply.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| ADC Resolution | 12/16/24-bit selectable; determines raw conversion precision and noise floor (ENOB up to 18.1 bits at 24-bit mode). |
| DAC Resolution | 13/14/16-bit configurable; sets analog output granularity for voltage (0–1V, 0–5V) or ratiometric (0.1–100% VDD) outputs. |
| Supply Voltage | 2.7V–5.5V (IC core); extended to 5V–48V via LDOctrl-controlled external transistor for high-voltage current-loop systems. |
| Operating Temp | –40°C to +125°C; qualified for under-hood automotive, industrial process control, and medical wearable environments. |
| Sensor Range | Supports 0.5kΩ–60kΩ resistive elements including Wheatstone bridges (1–500 mV/V), Pt100 RTDs, and external diodes. |
| Digital Interfaces | I²C (Std/Fast/HS), SPI (≤10 MHz), OWI (≤100 kbit/s); enables flexible host connectivity and field calibration without dedicated programming hardware. |
| Output Update Rate | Cyclic SSC-corrected output up to 2.50 kHz; enables real-time closed-loop control in fast-response pressure or flow sensing. |
Pinout & Package
Package: 4 × 4 mm² 24-pin QFN with wettable flanks (RoHS-compliant, JEDEC MS-012 variant). Exposed thermal pad (Pin 25) must be connected to VSS for thermal dissipation and EMC robustness.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| INP / INN | Differential analog input | Accepts bridge/half-bridge sensor signals; common-mode range 0.70–1.00 V with internal VDDB regulation. |
| VDDB / VSSB | Sensor supply rails | Provides ratiometric or current-mode excitation to resistive sensors; VDDB internally regulated to 1.68–1.80 V. |
| AOUT / OWI1 | Multi-function terminal | Delivers analog output (voltage/current) or serves as OWI bidirectional data line; short-circuit protected (10–12 mA max). |
| MOSI/SDA, SCLK/SCL, MISO, SS | Digital interface I/O | Configurable for SPI (4-wire) or I²C (2-wire); SCLK/SCL referenced to VDD; internal pull-ups on MOSI/SDA and SS. |
| LDOctrl | Analog control output | Drives external JFET or transistor to regulate VDD up to 48 V; enables high-voltage current-loop operation. |
| EOC | Digital interrupt output | Active-low end-of-conversion signal; supports threshold-based interrupts with hysteresis for noise-immune event triggering. |
| RESQ | Reset input | Low-active digital reset with internal pull-up; initiates cold start and clears internal state without power cycle. |
Key Features
| Feature | Design Value |
|---|---|
| Dual math cores | 26-bit primary core for full 4-parameter sensor correction (offset, gain, temp drift, nonlinearity); 16-bit secondary core optimizes analog/digital coexistence. |
| Triple analog output modes | Configurable 0–1V / 0–5V absolute, VDD-ratiometric (2.5–97.5%), or 4–20mA current loop-enabling drop-in replacement in legacy 4–20mA systems. |
| On-chip diagnostics | Real-time sensor connection check, broken-chip detection, memory integrity verification, and diagnostic register reporting via CHECK_DIAG command. |
| Programmable measurement scheduler | Adjusts update rate, power consumption, and self-test depth per application need-e.g., ultra-low-power (<3.5 µA avg.) for battery-powered health monitors. |
| External temperature sensing | Supports Pt100, NTC/PTC thermistors, and diode-based sensors via TEXT pin with built-in 150Ω series resistor for ESD protection. |
Applications
| Industrial Pressure Sensing | Medical Blood Pressure Monitoring |
|---|---|
|
Use Scenario: High-stability differential pressure measurement in factory automation air-handling units using silicon piezoresistive bridges. IC Role / Device Role / Timing Role: Signal conditioner performing PGA amplification, 24-bit digitization, and 4-parameter digital compensation (including temperature-induced zero shift) before I²C transmission to PLC controller. Use Value: Achieves <±0.1%FS accuracy over –25°C to 85°C without external calibration hardware, reducing field maintenance cycles by >60%. |
Use Scenario: Compact, battery-operated sphygmomanometer with integrated cuff pressure transducer and Bluetooth MCU. IC Role / Device Role / Timing Role: Low-power sensor front-end delivering 1.22 kHz corrected digital output and 0–5V analog output for local display, while maintaining <3.5 µA average current draw. Use Value: Enables 12-month battery life with clinical-grade accuracy (EN 1060-1 compliant) and eliminates need for separate analog front-end and microcontroller ADC. |
| Smart HVAC Temperature Control | Automotive Fluid Level Sensing |
|
Use Scenario: Multi-sensor HVAC node measuring ambient temperature (Pt100), duct airflow (bridge), and humidity (capacitive with resistive interface). IC Role / Device Role / Timing Role: Unified signal conditioner for all resistive elements-using TEXT pin for Pt100 bias, VDDB for bridge excitation, and OWI for low-pin-count calibration during commissioning. Use Value: Reduces BOM count by consolidating three discrete conditioners into one IC, cutting PCB area by 45% and enabling Class A energy certification. |
Use Scenario: Fuel tank level sensing using strain-gauge-equipped float arm in commercial vehicles operating at –40°C to 125°C. IC Role / Device Role / Timing Role: Ruggedized conditioner providing 4–20mA output with JFET-regulated 24V supply (via LDOctrl), EOC-triggered diagnostics, and memory-integrity-checked calibration. Use Value: Meets ISO 16750-4 vibration and thermal shock requirements while ensuring <0.5%FS long-term stability over 10-year vehicle lifetime. |
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-42688-P | MEMS IMU with integrated 16-bit ADC and FIFO; no programmable PGA, no NVM calibration storage, no analog output. | Targets motion sensing (accel/gyro), not resistive bridge conditioning; lacks Pt100 support and current-loop capability. | Choose only for inertial sensing; unsuitable for bridge/Pt100 signal chains requiring analog output or field recalibration. |
| Analog Devices AD7798 | 24-bit ΣΔ ADC with PGA (1–128×), no on-chip math core, no NVM, no DAC, no digital interfaces beyond SPI. | Requires external MCU for sensor correction algorithms and analog output generation; no built-in diagnostics or scheduler. | Select when full custom firmware control is preferred and system-level calibration is handled externally; adds design complexity and BOM cost. |
Compared with ZSSC3241DL3R, the ICM-42688-P serves entirely different sensor modalities (MEMS vs. resistive), while the AD7798 shifts signal correction, diagnostics, and analog output responsibilities to external components-making ZSSC3241DL3R uniquely suited for self-contained, calibrated smart sensor modules with dual-domain outputs.
Availability
ZSSC3241DL3R is available at Aetrix Electronics and suitable for industrial pressure sensing, medical blood pressure monitoring, and automotive fluid level applications requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for ZSSC3241DL3R 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 sensor solutions for industrial, automotive, and IoT markets.
The ZSSC3241DL3R belongs to Renesas' Sensor Signal Conditioning product line, engineered to replace discrete op-amp/ADC/MCU signal chains with a single IC that embeds calibration, diagnostics, and multi-interface output for resistive sensors.
FAQ
What sensor types does the ZSSC3241DL3R support?
The ZSSC3241DL3R supports resistive bridge and half-bridge sensors (1–500 mV/V), Pt100 RTDs, NTC/PTC thermistors, and external temperature diodes. It accommodates sensor impedances from 0.5kΩ to 60kΩ and provides on-chip current sources or ratiometric voltage excitation via VDDB/VSSB pins. The ZSSC3241DL3R also enables external temperature sensing through its TEXT pin with built-in 150Ω protection.
Does the ZSSC3241DL3R support both analog and digital outputs simultaneously?
Yes, the ZSSC3241DL3R supports concurrent analog and digital outputs. Its dual math cores allow independent correction paths: the 26-bit core handles full sensor compensation for digital outputs (I²C/SPI/OWI), while the 16-bit support core optimizes analog output (AOUT) accuracy. This enables simultaneous 0–5V analog output and I²C-corrected digital readings without performance trade-offs.
How is calibration stored and updated on the ZSSC3241DL3R?
Calibration coefficients for offset, sensitivity, temperature drift, and nonlinearity are stored in reprogrammable nonvolatile memory (NVM) inside the ZSSC3241DL3R. These values are written via I²C, SPI, or OWI interfaces during factory or field calibration. The ZSSC3241DL3R executes real-time correction using its 26-bit math core, eliminating need for external computation or lookup tables.
Can the ZSSC3241DL3R operate with supply voltages above 5.5V?
Yes-the ZSSC3241DL3R supports extended supply operation up to 48V using its LDOctrl pin to drive an external JFET or transistor. In this configuration, the IC regulates its internal VDD rail to 4.6–5.5V while accepting 5–48V at the external transistor's drain. This enables direct integration into 24V industrial current-loop systems without external DC-DC converters.
What diagnostics does the ZSSC3241DL3R provide for sensor health monitoring?
The ZSSC3241DL3R includes on-chip diagnostics for sensor connection integrity, broken-chip detection, and NVM memory integrity. Diagnostic status is reported via the CHECK_DIAG command, populating a 16-bit register (diagnosticreg[15:0]) with flags for open/short sensor leads, chipping faults, and CRC errors. These features enable predictive maintenance and functional safety compliance in IEC 61508 SIL2 systems.
ZSSC3241DL3R Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 24-VFQFN Exposed Pad
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- -
- Type:
- Signal Conditioner
- Input Type:
- Analog, Digital
- Output Type:
- 1-Wire®, I2C, SPI
- Current - Supply:
- 18 mA
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- 24-QFN (4x4)
ZSSC3241DL3R FAQ
1.How can I place an order for ZSSC3241DL3R through Aetrix?
Please submit a Request for Quotation (RFQ) for ZSSC3241DL3R 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 ZSSC3241DL3R reliable?
The price and inventory of ZSSC3241DL3R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ZSSC3241DL3R is usually 5 days.
3.What payment methods are accepted for ZSSC3241DL3R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ZSSC3241DL3R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ZSSC3241DL3R?
ZSSC3241DL3R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ZSSC3241DL3R 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 ZSSC3241DL3R?
For technical support, including ZSSC3241DL3R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ZSSC3241DL3R requirements.
6.How does Aetrix verify that ZSSC3241DL3R is sourced from the original manufacturer or authorized distributors?
All ZSSC3241DL3R 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 ZSSC3241DL3R meets industry standards.
7.What is the process for return or replacement of ZSSC3241DL3R?
All ZSSC3241DL3R units undergo pre-shipment inspection (PSI). If there is an issue with ZSSC3241DL3R, 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 ZSSC3241DL3R part is unused and in its original packaging.
Return procedure for ZSSC3241DL3R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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