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Renesas ZSSC3135BE1D
- Part No.:
- ZSSC3135BE1D
- Manufacturer:
- Renesas
- Category:
- Sensor and Detector Interfaces
- Package:
- -
- Datasheet:
-
ZSSC3135BE1D.pdf
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- DICE (WAFER SAWN) - WAFFLE PACK
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Product details
Overview
ZSSC3135BE1D from Integrated Device Technology (IDT) is a CMOS sensor signal conditioner IC designed specifically for piezoresistive bridge sensors in automotive and industrial environments. It delivers 13/14-bit ADC resolution, analog gain up to 105, ratiometric analog voltage output (12.4-bit effective), and digital ZACwire™ One-Wire interface - enabling high-accuracy compensation of offset, sensitivity, temperature drift, and non-linearity across -40°C to +150°C.
For engineers reviewing the ZSSC3135BE1D datasheet, ZSSC3135BE1D pinout, ZSSC3135BE1D application, or ZSSC3135BE1D equivalent, key selection considerations include its SSOP14 package, AEC-Q100 qualification, integrated 16-bit RISC microcontroller for on-chip correction, external temperature sensor support, and dual-output capability (analog voltage or ZACwire™).
Technical Context
The ZSSC3135BE1D implements a fully differential analog front-end with programmable gain amplifier (PGA), multiplexer, and full-differential switched-capacitor ADC. Its calibration microcontroller executes sensor-specific correction algorithms stored in ROM, using coefficients written to on-chip EEPROM during one-pass calibration.
Signal flow includes sequential sampling of bridge sensor, internal/external temperature sensor, and input channel auto-zero - all synchronized by an internal oscillator (2–4 MHz). Output is configurable as ratiometric analog voltage (5–95% VDDE, 12-bit DAC) or digital ZACwire™ data stream, with I²C™ used only for configuration and calibration.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| ADC Resolution | 13 or 14 bits - determines raw digitization fidelity before digital conditioning |
| Analog Gain Range | Up to 105 - enables direct interfacing with low-output piezoresistive bridges (e.g., 2–25 kΩ) |
| Output Options | Ratiometric analog voltage (5–95% VDDE) or ZACwire™ One-Wire digital interface - supports both legacy analog systems and modern digital bus architectures |
| Accuracy | 0.25% FSO @ -25°C to +85°C - specifies total error including INL, gain, offset, and temperature effects without sensor contribution |
| Operating Temp | -40°C to +150°C - qualified for under-hood automotive and harsh industrial environments |
| Supply Voltage | 4.5 V to 5.5 V - compatible with standard 5 V rail systems; supports reverse polarity and short-circuit protection |
| Sample Rate | Up to 200 Hz - sufficient for dynamic pressure, force, and acceleration sensing in real-time control loops |
Pinout & Package
Package: JEDEC-compliant SSOP14 (Small Outline Package, 14-pin, 0.635 mm pitch), RoHS-compliant, rated for -40°C to +150°C operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDA | Analog supply | Provides clean power to analog front-end; decoupled via 100 nF capacitor |
| VSSA | Analog ground | Reference for analog inputs and outputs; must be separated from digital ground for noise immunity |
| SDA | I²C™ data line | Open-drain bidirectional interface for configuration, calibration, and EEPROM programming |
| SCL | I²C™ clock line | Drives synchronous communication up to 400 kHz; requires external pull-up |
| VDD | Digital core supply | Supplies logic and microcontroller; tied to VDDA in typical applications |
| VDDE | Output driver supply | Sets analog output voltage range (5–95% VDDE); supports up to 33 V transient protection |
| IRTEMP | External temperature sensor bias | Provides 6–20 µA current source for external diode or thermistor temperature sensing |
| VBR_T / VBR_B | Bridge sensor top/bottom inputs | Differential inputs accepting Wheatstone bridge signals; require matched external filtering |
| VBP / VBN | Bridge sensor positive/negative sense | High-impedance inputs for precise common-mode monitoring and sensor connection diagnostics |
| AOUT | Analog output | Ratiometric voltage output (0.05–0.95 × VDDE); drives ≥2 kΩ load with 0.1 V/µs slew rate |
| VSSE | Output ground | Return path for AOUT; isolated from VSSA to maintain ratiometric accuracy |
| n.c. | No connect | Pin 5 is unconnected; must remain floating per datasheet |
Key Features
| Feature | Design Value |
|---|---|
| Digital compensation engine | On-chip 16-bit RISC microcontroller executes sensor-specific correction algorithms - eliminates need for external DSP or MCU |
| One-pass calibration | Single-point end-of-line calibration writes all coefficients to on-chip EEPROM - reduces production test time and cost |
| Failsafe sensor diagnostics | Detects open-circuit (>100 kΩ), short-circuit (<50 Ω), and asymmetry faults on bridge inputs - meets ASIL-B functional safety requirements |
| Robust protection | Withstands ±33 V transients on VDDE/AOUT, reverse polarity, and output short circuits - enables direct battery connection in automotive systems |
| Traceability support | User-defined EEPROM fields allow serialization, calibration timestamp, and manufacturing lot storage - supports ISO/TS 16949 traceability |
Applications
| Automotive Tire Pressure Monitoring (TPMS) | Industrial Hydraulic Pressure Sensing |
|---|---|
Use Scenario: Real-time monitoring of tire inflation pressure in passenger vehicles under extreme ambient conditions (-40°C to +125°C). IC Role / Device Role / Timing Role: Signal conditioner that digitizes and compensates piezoresistive bridge output from MEMS pressure die, then outputs calibrated analog voltage or ZACwire™ data to ECU. Use Value: Achieves 0.25% FSO accuracy over full temperature range, enabling reliable pressure thresholds for warning activation without recalibration. | Use Scenario: Closed-loop pressure feedback in hydraulic valve manifolds exposed to vibration, oil contamination, and wide thermal cycling. IC Role / Device Role / Timing Role: Front-end conditioner for stainless-steel strain-gauge bridges, providing ratiometric analog output to PLC analog input modules. Use Value: High-voltage protection (±33 V) and reverse polarity tolerance eliminate need for external protection circuitry, reducing BOM count and board space. |
| Medical Disposable Blood Pressure Transducer | Heavy-Duty Off-Road Equipment Load Sensing |
Use Scenario: Single-use blood pressure cuffs requiring factory-calibrated, low-power, high-accuracy analog output for bedside monitors. IC Role / Device Role / Timing Role: Sensor-specific correction IC that applies temperature-compensated linearization to bridge output before analog transmission. Use Value: 100,000 EEPROM write cycles at ≤85°C enable field re-calibration during device servicing, extending usable life beyond single-use assumptions. | Use Scenario: Structural load monitoring on mining shovels and agricultural machinery operating continuously at >100°C ambient. IC Role / Device Role / Timing Role: High-temp signal conditioner interfacing with high-resistance (up to 25 kΩ) piezoresistive load cells, delivering stable analog output despite thermal gradients. Use Value: Extended -40°C to +150°C operation range and 0.5% FSO accuracy at -40°C to +125°C ensure consistent performance where conventional conditioners fail. |
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, 2-wire serial interface, no integrated microcontroller - requires external host for compensation math | Lacks on-chip correction algorithm; needs external MCU or FPGA for full calibration | Choose when existing system already includes processing resources and analog output is preferred |
| AD8555ARZ | Chopper-stabilized op-amp + programmable gain + 16-bit DAC; no ADC or digital compensation engine | Requires external ADC and microcontroller for full sensor correction - higher component count | Choose for ultra-low offset (<1 µV) analog amplification where digital correction is handled elsewhere |
Compared with MAX1452ACM+T and AD8555ARZ, the ZSSC3135BE1D integrates correction computation, EEPROM storage, and dual-output capability in a single SSOP14 package - reducing system-level complexity, PCB area, and calibration overhead while maintaining AEC-Q100 compliance.
Availability
ZSSC3135BE1D is available at Aetrix Electronics and suitable for automotive TPMS, industrial hydraulic pressure monitoring, medical disposable transducers, and off-road equipment load sensing requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for ZSSC3135BE1D 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
Integrated Device Technology (IDT), now part of Renesas Electronics, is a fabless semiconductor company specializing in timing, memory interface, RF, and sensor signal conditioning solutions for automotive, industrial, and communications markets.
The ZSSC313x product line was designed to deliver highly accurate, AEC-Q100-qualified signal conditioning for piezoresistive bridge sensors - targeting applications demanding robustness, minimal external components, and end-of-line calibration efficiency.
FAQ
What is the maximum operating temperature supported by the ZSSC3135BE1D?
The ZSSC3135BE1D is specified for operation from -40°C to +150°C, with full electrical performance guaranteed across this extended temperature range. This rating applies to the BE1D variant (SSOP14 package, TQE version), making it suitable for under-hood automotive and high-temperature industrial environments where conventional conditioners derate or fail.
Does the ZSSC3135BE1D support both analog and digital outputs simultaneously?
No - the ZSSC3135BE1D supports either ratiometric analog voltage output (AOUT pin) or ZACwire™ digital output, but not both concurrently. Output mode is selected during EEPROM configuration. The analog output provides 12-bit effective resolution (5–95% VDDE), while ZACwire™ delivers conditioned 13/14-bit digital data over a single-wire interface.
Can the ZSSC3135BE1D perform temperature compensation using an external sensor?
Yes - the ZSSC3135BE1D includes dedicated IRTEMP, VTSER, and VTSED pins to bias and read external temperature sensors, including diodes (0–1.5 V input range) and resistors (0–600 mV/V). External temperature data is digitally fused with bridge measurements to correct for thermal drift, improving accuracy beyond what the on-chip diode alone achieves.
What calibration method does the ZSSC3135BE1D use, and is external equipment required?
The ZSSC3135BE1D uses a one-pass end-of-line calibration procedure executed via I²C™ or ZACwire™ interface. A PC running IDT's configuration software applies known pressure/temperature stimuli while the IC writes all correction coefficients to on-chip EEPROM. No trimming resistors or manual adjustments are needed - the entire process is automated and repeatable.
Is the ZSSC3135BE1D AEC-Q100 qualified, and which stress test levels apply?
Yes - the ZSSC3135BE1D is AEC-Q100 qualified for Grade 0 (-40°C to +150°C). It has passed accelerated stress tests including HTOL (high-temperature operating life), TC (temperature cycling), and AC (autoclave), confirming reliability for automotive safety-critical applications such as brake pressure and airbag deployment systems.
ZSSC3135BE1D Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- -
- Series:
- *
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- -
- Input Type:
- -
- Output Type:
- -
- Current - Supply:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
ZSSC3135BE1D FAQ
1.How can I place an order for ZSSC3135BE1D through Aetrix?
Please submit a Request for Quotation (RFQ) for ZSSC3135BE1D 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 ZSSC3135BE1D reliable?
The price and inventory of ZSSC3135BE1D are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ZSSC3135BE1D is usually 5 days.
3.What payment methods are accepted for ZSSC3135BE1D?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ZSSC3135BE1D transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ZSSC3135BE1D?
ZSSC3135BE1D orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ZSSC3135BE1D 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 ZSSC3135BE1D?
For technical support, including ZSSC3135BE1D datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ZSSC3135BE1D requirements.
6.How does Aetrix verify that ZSSC3135BE1D is sourced from the original manufacturer or authorized distributors?
All ZSSC3135BE1D 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 ZSSC3135BE1D meets industry standards.
7.What is the process for return or replacement of ZSSC3135BE1D?
All ZSSC3135BE1D units undergo pre-shipment inspection (PSI). If there is an issue with ZSSC3135BE1D, 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 ZSSC3135BE1D part is unused and in its original packaging.
Return procedure for ZSSC3135BE1D:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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