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Renesas ZSC31150GEB
- Part No.:
- ZSC31150GEB
- Manufacturer:
- Renesas
- Category:
- Sensor and Detector Interfaces
- Package:
- -
- Datasheet:
-
ZSC31150GEB.pdf
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- WAFER (UNSAWN) - BOX
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Product details
Overview
ZSC31150GEB from Integrated Device Technology (IDT) is a CMOS-based automotive sensor signal conditioner IC designed for high-accuracy amplification and digital correction of bridge sensor outputs. It integrates a 16-bit RISC microcontroller, EEPROM-stored calibration coefficients, and dual analog/digital output (ratiometric voltage or ZACwire™/I²C). Key specs include ±0.25% FSO accuracy at −25°C to +85°C, 4.5–5.5 V supply, up to 7.8 kHz sample rate, and AEC-Q100 qualification for under-hood pressure, load, and force sensing.
For engineers reviewing the ZSC31150GEB datasheet, ZSC31150GEB pinout, ZSC31150GEB application, or ZSC31150GEB equivalent, this page delivers verified technical context, real-world interface behavior, calibrated performance boundaries, and validated alternatives for automotive sensor signal conditioning in production-grade designs.
Technical Context
The ZSC31150GEB implements a closed-loop digital compensation architecture: its internal PGA conditions bridge signals (gain up to 420), followed by a 13–16-bit ADC; temperature data-via internal diode, external diode, or thermistor-is fused with sensor readings before correction via ROM-resident algorithm and EEPROM-stored coefficients. The CMC executes real-time offset, sensitivity, temperature drift, and non-linearity compensation.
Dual output paths are supported: ratiometric analog voltage (12.4-bit effective resolution, 5–95% VDDE range) and digital interfaces (I²C up to 400 kHz, ZACwire™ one-wire). Safety features include sensor connection check, watchdog, diagnostic modes, reverse polarity protection, short-circuit tolerance (±25 mA), and high-voltage robustness (±33 V on supply and AOUT pins).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Accuracy (FSO) | ±0.25% at −25°C to +85°C; ±0.5% at −40°C to +125°C - defines maximum deviation from ideal transfer curve including gain, offset, INL, and thermal errors. |
| Analog Output Range | 5–95% of VDDE (ratiometric), 12-bit DAC resolution - ensures stable scaling across supply variation and compatibility with downstream ADCs. |
| Sample Rate | Up to 7.8 kHz - supports dynamic pressure/force measurements in fast-response automotive subsystems. |
| Supply Voltage | 4.5 V to 5.5 V - matches standard automotive 5 V rail with ±10% tolerance; enables direct integration without LDO overhead. |
| Operating Temperature | −40°C to +125°C (TQA grade) - qualified for engine bay, transmission, and brake module environments per AEC-Q100 Grade 1. |
| Digital Interfaces | I²C (400 kHz) and ZACwire™ (one-wire) - enable PC-based end-of-line calibration and field reconfiguration without additional bus controllers. |
| Protection Ratings | ±33 V absolute max on VDDE/AOUT; reverse polarity & short-circuit protected - eliminates need for external TVS or series FETs in harsh ECU designs. |
Pinout & Package
ZSC31150GEB is packaged in 14-pin SSOP (Small Outline Package), 5.0 × 6.2 mm body, 0.635 mm pitch, with wettable flanks for automated optical inspection (AOI) and solder joint reliability in automotive reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDA / VSSA | Analog supply / analog ground | Separate analog domain for precision AFE operation; decoupling required per datasheet (C1 = 100 nF). |
| VDD / VSSE | Digital supply / digital ground | Independent digital power domain; allows noise isolation between analog and digital sections. |
| VBR_T / VBR_B | Bridge top / bridge bottom inputs | Differential sensor input pair; supports voltage- or current-mode excitation with programmable common-mode range (0.29–0.65 × VDDA). |
| AOUT | Analog output | Ratiometric voltage output (5–95% VDDE); capable of sourcing/sinking 5 mA into 1 kΩ load with <10 mVpp noise. |
| SDA / SCL | I²C data / clock | Standard open-drain I²C interface (400 kHz max); internal 25–100 kΩ pull-ups eliminate external resistors. |
| Out / OWI | ZACwire™ one-wire interface | Single-pin bidirectional digital interface; supports calibration and diagnostics without dedicated I²C hardware. |
| IRTEMP | External temperature sensor bias | Provides 6–20 µA current source for external diode or thermistor; enables accurate temperature compensation independent of bridge excitation. |
| n.c. | No connect | Unbonded pin; must remain unconnected per layout guidelines to avoid parasitic coupling. |
Key Features
| Feature | Design Value |
|---|---|
| Digital compensation engine | 16-bit RISC microcontroller executing ROM-based correction algorithm with EEPROM-stored coefficients - eliminates laser trimming and external passive compensation networks. |
| Configurable sensor excitation | Voltage or constant-current bridge biasing - supports wide range of strain gauge, piezoresistive, and MEMS bridge sensors without redesign. |
| Multi-source temperature sensing | Internal diode, external diode, or thermistor input - enables optimal thermal tracking for different packaging constraints and accuracy requirements. |
| End-of-line calibration support | PC-controlled single-pass calibration via I²C or ZACwire™ - reduces test time and cost in final assembly; traceable EEPROM entries support lot-level traceability. |
| Failsafe diagnostics | Sensor open/short detection, watchdog timer, and diagnostic output mode (8–92% VDDE) - meets ASIL-B functional safety readiness for critical sensor nodes. |
Applications
| Engine Intake Manifold Pressure Sensing | Brake Master Cylinder Pressure Monitoring |
|---|---|
|
Use Scenario: Real-time measurement of absolute pressure in turbocharged intake manifolds under transient throttle events and high-temperature soak conditions. IC Role / Device Role / Timing Role: Signal conditioner performing offset/sensitivity/temperature compensation and delivering ratiometric analog output to ECU ADC. Use Value: ±0.25% FSO accuracy over −25°C to +85°C ensures precise air-mass calculation for fuel injection control, reducing emissions and improving combustion efficiency. |
Use Scenario: Continuous monitoring of hydraulic pressure in brake master cylinders during ABS activation and emergency braking cycles. IC Role / Device Role / Timing Role: High-reliability bridge signal conditioner with diagnostic output mode and sensor connection check for fail-safe pressure reporting. Use Value: Reverse polarity and ±33 V high-voltage protection enable direct connection to vehicle battery without external protection, simplifying BOM and improving system robustness. |
| Transmission Oil Pressure Feedback | Seat Occupancy Load Detection |
|
Use Scenario: Long-duration oil pressure monitoring inside automatic transmissions exposed to 150°C ambient and mechanical vibration. IC Role / Device Role / Timing Role: AEC-Q100 Grade 1 qualified signal conditioner with extended temperature range (−40°C to +125°C) and EEPROM data retention >15 years. Use Value: Internal temperature diode and 2nd-order ADC configuration deliver <5 LSB INL over full temperature range, ensuring consistent shift timing logic across lifetime. |
Use Scenario: Detection of occupant presence and weight classification using thin-film strain gauges embedded in seat cushion foam. IC Role / Device Role / Timing Role: Low-noise (3 mV RMS), high-gain (up to 420×) signal conditioner enabling sub-100 g resolution with minimal external components. Use Value: Programmable gain amplifier and extended zero-point compensation (XZC) accommodate large initial sensor offsets typical in polymer-based load cells, eliminating manual trim. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bridge sensor signal conditioning applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX1452AUA+ | 16-bit analog signal conditioner with external microcontroller interface; no integrated EEPROM or correction engine - requires host MCU for coefficient storage and computation. | Lacks autonomous digital correction; suitable only when host processor handles calibration math and retains coefficients externally. | Choose MAX1452AUA+ if existing MCU infrastructure already manages sensor linearization and EEPROM is available off-chip. |
| AD8555ARZ | Analog auto-zero chopper amplifier with programmable gain and offset; no digital interface, ADC, or temperature compensation - purely analog front-end. | Requires external ADC, temperature sensor, and microcontroller for full signal conditioning stack; no built-in diagnostics or failsafe modes. | Choose AD8555ARZ only for low-cost, non-safety-critical applications where digital features and AEC-Q100 compliance are not required. |
Compared with ZSC31150GEB, MAX1452AUA+ shifts computational burden to host firmware and lacks integrated EEPROM, while AD8555ARZ provides no digital interface or temperature compensation - making ZSC31150GEB the only option offering fully autonomous, calibrated, AEC-Q100-compliant bridge signal conditioning in a single package.
Availability
ZSC31150GEB is available at Aetrix Electronics and suitable for automotive pressure sensing, brake system monitoring, transmission feedback, and occupant detection requiring stable component supply, long-term lifecycle continuity, and AEC-Q100-compliant performance.
Supply support for ZSC31150GEB 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 ICs for automotive, industrial, and communications markets.
The ZSC31150 product line was designed specifically for high-accuracy, production-ready bridge sensor conditioning in automotive ECUs - integrating calibration, diagnostics, and robust protection into a single AEC-Q100-qualified device.
FAQ
What is the operating temperature range certified for ZSC31150GEB?
ZSC31150GEB is rated for −40°C to +125°C ambient operation (TQA grade) and qualified per AEC-Q100 Grade 1. This range covers under-hood applications such as engine manifolds and transmission housings. Extended-range variants (e.g., ZSC31150GEG2-R) support up to +150°C, but ZSC31150GEB itself is specified and tested to +125°C maximum.
Does ZSC31150GEB require external EEPROM for calibration storage?
No. ZSC31150GEB contains on-chip EEPROM that stores all calibration coefficients, configuration settings, and user-defined traceability entries. The internal EEPROM supports 100,000 write cycles at ≤85°C and retains data for ≥15 years at 55°C - eliminating need for external non-volatile memory in production systems.
Can ZSC31150GEB interface directly with an automotive microcontroller's I²C peripheral?
Yes. ZSC31150GEB supports standard-mode I²C (up to 400 kHz) with internal pull-up resistors (25–100 kΩ) on SDA/SCL. It operates at 4.5–5.5 V and is electrically compatible with 5 V-tolerant automotive MCUs - no level-shifting or external pull-ups are required for basic communication and calibration.
How does ZSC31150GEB handle sensor fault detection?
ZSC31150GEB performs real-time sensor connection checks: it detects open circuits above 100 kΩ and shorts below 50 Ω on bridge inputs. It also monitors internal diagnostics, watchdog timeout, and EEPROM integrity. Fault conditions trigger diagnostic output mode (8–92% VDDE) and can be read via I²C or ZACwire™ for ASIL-B–compliant error reporting.
Is ZSC31150GEB pin-compatible with other members of the ZSC31150 family?
ZSC31150GEB uses the 14-SSOP package and shares identical pinout with all ZSC31150xG1 variants (e.g., ZSC31150GAG1, ZSC31150GLG1). However, temperature grade (TQA vs TQE), EEPROM endurance, and internal diode calibration differ - so while PCB layout is interchangeable, system-level qualification must be repeated for each variant.
ZSC31150GEB 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:
- -
ZSC31150GEB FAQ
1.How can I place an order for ZSC31150GEB through Aetrix?
Please submit a Request for Quotation (RFQ) for ZSC31150GEB 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 ZSC31150GEB reliable?
The price and inventory of ZSC31150GEB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ZSC31150GEB is usually 5 days.
3.What payment methods are accepted for ZSC31150GEB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ZSC31150GEB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ZSC31150GEB?
ZSC31150GEB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ZSC31150GEB 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 ZSC31150GEB?
For technical support, including ZSC31150GEB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ZSC31150GEB requirements.
6.How does Aetrix verify that ZSC31150GEB is sourced from the original manufacturer or authorized distributors?
All ZSC31150GEB 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 ZSC31150GEB meets industry standards.
7.What is the process for return or replacement of ZSC31150GEB?
All ZSC31150GEB units undergo pre-shipment inspection (PSI). If there is an issue with ZSC31150GEB, 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 ZSC31150GEB part is unused and in its original packaging.
Return procedure for ZSC31150GEB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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