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Renesas ZSC31150GED
- Part No.:
- ZSC31150GED
- Manufacturer:
- Renesas
- Category:
- Sensor and Detector Interfaces
- Package:
- -
- Datasheet:
-
ZSC31150GED.pdf
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- DICE (WAFER SAWN) - WAFFLE PACK
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Product details
Overview
ZSC31150GED from Integrated Device Technology is a CMOS-based automotive sensor signal conditioner IC designed for high-accuracy amplification and digital correction of bridge sensor signals. It integrates a 16-bit RISC microcontroller, EEPROM-stored calibration coefficients, ratiometric analog voltage output (12.4-bit resolution), ZACwire™ one-wire interface, and I²C interface. It supports bridge sensors in voltage or current excitation mode with up to 420× analog gain and operates from −40°C to +125°C.
For engineers reviewing the ZSC31150GED datasheet, ZSC31150GED pinout, ZSC31150GED application, or ZSC31150GED equivalent, this device delivers AEC-Q100-qualified signal conditioning for pressure, load, and force sensing in engine management, brake systems, and transmission control - with PC-controlled calibration, end-of-line programming, and diagnostic safety functions.
Technical Context
The ZSC31150GED implements a dual-path signal chain: differential analog front-end (PGA + ADC) feeds into a dedicated calibration microcontroller (CMC) executing sensor-specific correction algorithms stored in ROM, using coefficients written to on-chip EEPROM. Temperature compensation uses internal diode, external diode, bridge resistance, or thermistor inputs.
It supports two primary operating modes: voltage-mode or current-mode bridge excitation, with programmable gain (up to 420), extended zero-point compensation (XZC), 13–16-bit ADC resolution, and configurable 2nd-order filtering. Output is selectable as ratiometric analog voltage (5–95% VDDE) or digital via ZACwire™/I²C at up to 7.8 kHz sample rate.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 4.5 V to 5.5 V - ensures stable operation across automotive battery variations without external regulation. |
| Analog Output Resolution | 12-bit (12.4-bit effective) - enables precise ratiometric voltage output (5–95% VDDE) with ≤10 mVPP noise. |
| ADC Resolution | 13–16-bit programmable - balances speed (up to 7.8 kHz) and precision (0.25% FSO accuracy at −25°C to +85°C). |
| Operating Temperature | −40°C to +125°C - qualified per AEC-Q100 Grade 1 for under-hood automotive applications. |
| Digital Interfaces | I²C (400 kHz) and ZACwire™ one-wire - support PC-based calibration, coefficient programming, and diagnostics without additional protocol hardware. |
| EEPROM Endurance | 100 k write cycles at ≤85°C - sufficient for production calibration and field updates over product lifetime. |
| Bridge Excitation | Voltage or constant-current mode - accommodates 2–25 kΩ bridge resistors with up to 2 mA excitation current. |
Pinout & Package
Package: 14-DFN (5 × 4 mm, wettable flanks), RoHS-compliant, thermally enhanced for automotive under-hood mounting.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDA / VSSA | Analog supply / ground | Separate analog domain power pins reduce noise coupling into sensitive bridge signal path. |
| VDD / VDDE | Digital supply / main supply | VDDE powers digital core and interfaces; VDD supplies internal logic - decoupling required per datasheet layout guidelines. |
| VBR_T / VBR_B | Bridge top / bottom input | Differential inputs for Wheatstone bridge - support common-mode range from 0.29×VDDA to 0.65×VDDA. |
| VBP / VBN | Bridge positive / negative sense | High-impedance sense inputs for ratiometric bridge biasing - enable accurate offset and sensitivity correction. |
| AOUT | Analog output | Ratiometric voltage output (5–95% VDDE); sink/source capable up to 5 mA; short-circuit protected to ±25 mA. |
| SDA / SCL | I²C data / clock | Standard open-drain I²C interface (400 kHz max); internal pull-ups (25–100 kΩ) simplify host connection. |
| Out / OWI | ZACwire™ one-wire | Single-pin bidirectional digital interface for calibration and diagnostics - reduces wiring complexity vs. I²C. |
| IRTEMP / VSSE | Temperature sensor input / system ground | Supports external diode, thermistor, or internal junction temperature measurement for real-time drift compensation. |
Key Features
| Feature | Design Value |
|---|---|
| Digital compensation of offset, sensitivity, temp drift, non-linearity | Eliminates need for laser trimming or external passive components - achieves 0.25% FSO accuracy with single-pass calibration. |
| Adjustable to nearly all bridge sensor types | Configurable PGA gain (2.8–420), XZC, excitation mode, and ADC settings support strain gauge, pressure, and load cells without hardware change. |
| High-voltage protection (±33 V) | Withstands automotive load-dump and reverse-battery transients without external TVS - reduces BOM count and PCB area. |
| Safety and diagnostic functions | Includes sensor open/short detection, watchdog timer, failsafe output modes, and EEPROM CRC - meets ASIL-B functional safety requirements. |
| Traceability via user-defined EEPROM entries | Enables unique device serialization, calibration timestamping, and production lot tracking - supports ISO/TS 16949 traceability mandates. |
Applications
| Engine Manifold Pressure Sensing | Brake Master Cylinder Pressure Monitoring |
|---|---|
Use Scenario: Real-time measurement of intake manifold absolute pressure (MAP) in gasoline direct injection engines under wide temperature and vibration conditions. IC Role / Device Role / Timing Role: Signal conditioner that digitizes and corrects bridge output from piezoresistive pressure sensor, compensating for thermal drift and non-linearity across −40°C to +125°C. Use Value: Enables closed-loop air-fuel ratio control with 0.25% FSO accuracy, reducing emissions and improving fuel economy without external compensation circuitry. | Use Scenario: Redundant pressure monitoring in hydraulic brake systems for electronic stability control (ESC) and brake-by-wire applications. IC Role / Device Role / Timing Role: High-reliability analog-to-digital signal conditioner providing ratiometric voltage output and I²C diagnostics for fail-safe pressure feedback. Use Value: Delivers ASIL-B compliant diagnostics (open/short detection, watchdog, EEPROM CRC) and ±33 V transient protection - eliminating need for discrete protection components. |
| Transmission Oil Pressure Sensing | Seat Occupancy Load Detection |
Use Scenario: Continuous oil pressure monitoring inside automatic transmission housings exposed to high thermal cycling and mechanical shock. IC Role / Device Role / Timing Role: Automotive-grade signal conditioner interfacing with thick-film bridge sensors, supporting current-mode excitation for stable performance at 150°C junction temperature. Use Value: Maintains 0.5% FSO accuracy from −40°C to +125°C with internal temperature compensation - enabling predictive maintenance and shift optimization. | Use Scenario: Occupant classification in vehicle seats using multi-element strain-gauge arrays to distinguish adult, child, and empty states for airbag deployment logic. IC Role / Device Role / Timing Role: Multi-channel-capable signal conditioner performing simultaneous offset/gain/temperature correction on multiple bridge elements via sequential ADC sampling. Use Value: Supports end-of-line calibration via ZACwire™ - enabling low-cost, high-throughput seat module testing without dedicated calibration fixtures. |
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 sigma-delta ADC, no integrated microcontroller; requires external EEPROM and host processor for correction algorithm. | Lacks on-chip calibration firmware and ZACwire™ interface - demands more complex system-level calibration infrastructure. | Choose when legacy analog signal chains require minimal IC-level change and host MCU resources are available for computation. |
| AD8555ARZ | Chopper-stabilized amplifier with programmable gain and offset, but no ADC, EEPROM, or digital interfaces - purely analog signal path. | No digital correction capability; limited to basic offset/gain trim - cannot compensate for temperature drift or non-linearity. | Choose only for cost-sensitive, low-accuracy applications where full digital compensation is unnecessary. |
Compared with MAX1452ACM+T and AD8555ARZ, the ZSC31150GED provides fully integrated digital correction, AEC-Q100 qualification, and dual digital interfaces - reducing system BOM, calibration time, and functional safety validation effort while delivering higher accuracy across automotive temperature ranges.
Availability
ZSC31150GED is available at Aetrix Electronics and suitable for engine management systems, brake pressure monitoring, and transmission oil sensing requiring stable component supply, long-term lifecycle support, and AEC-Q100-compliant sourcing.
Supply support for ZSC31150GED 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, AEC-Q100-qualified bridge sensor signal conditioning in harsh automotive environments - integrating calibration computation, EEPROM, and robust protection into a single chip.
FAQ
What is the maximum operating temperature range supported by the ZSC31150GED?
The ZSC31150GED is rated for operation from −40°C to +125°C and is AEC-Q100 Grade 1 qualified. Its electrical parameters - including 0.5% FSO overall failure and EEPROM functionality - are guaranteed across this full range. The device also supports extended junction temperatures up to +150°C in specific configurations, though the GED suffix denotes the standard −40°C to +125°C grade.
Does the ZSC31150GED require external components for basic operation?
The ZSC31150GED requires only three external capacitors (two 100 nF decoupling caps and one 47 nF output filter) and optional protection devices. No external trimming resistors, laser-trimmed components, or separate microcontrollers are needed - its on-chip 16-bit RISC microcontroller executes correction algorithms using EEPROM-stored coefficients, enabling true single-chip signal conditioning.
How does the ZSC31150GED handle temperature compensation for bridge sensors?
The ZSC31150GED supports four temperature compensation sources: internal diode, external diode, bridge resistance (TCR-based), or external thermistor. Compensation is applied digitally in real time by the on-chip microcontroller using calibrated coefficients. This eliminates analog compensation networks and enables dynamic correction of sensitivity and offset drift across the full operating temperature range.
Can the ZSC31150GED be calibrated without a dedicated programming fixture?
Yes - the ZSC31150GED supports PC-controlled calibration via its I²C or ZACwire™ interface. Using IDT's evaluation software and ZSC31150KITV1P2 kit, users can perform single-pass end-of-line calibration, program EEPROM coefficients, and verify performance without custom hardware. This reduces test time and eliminates laser trimming infrastructure.
What safety and diagnostic features are built into the ZSC31150GED?
The ZSC31150GED includes sensor open/short detection (thresholds at 100 kΩ and 50 Ω), watchdog timer, failsafe output modes (diagnostic voltage ranges), EEPROM CRC verification, and supply/temperature monitoring. These features collectively support ASIL-B compliance per ISO 26262 and enable robust fault detection in safety-critical automotive subsystems.
ZSC31150GED 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:
- -
ZSC31150GED FAQ
1.How can I place an order for ZSC31150GED through Aetrix?
Please submit a Request for Quotation (RFQ) for ZSC31150GED 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 ZSC31150GED reliable?
The price and inventory of ZSC31150GED are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ZSC31150GED is usually 5 days.
3.What payment methods are accepted for ZSC31150GED?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ZSC31150GED transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ZSC31150GED?
ZSC31150GED orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ZSC31150GED 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 ZSC31150GED?
For technical support, including ZSC31150GED datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ZSC31150GED requirements.
6.How does Aetrix verify that ZSC31150GED is sourced from the original manufacturer or authorized distributors?
All ZSC31150GED 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 ZSC31150GED meets industry standards.
7.What is the process for return or replacement of ZSC31150GED?
All ZSC31150GED units undergo pre-shipment inspection (PSI). If there is an issue with ZSC31150GED, 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 ZSC31150GED part is unused and in its original packaging.
Return procedure for ZSC31150GED:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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