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Renesas ZSC31150GAG2-R
- Part No.:
- ZSC31150GAG2-R
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- Renesas
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ZSC31150GAG2-R.pdf
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- IC INTFACE SPECIALIZED SGNL COND
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Product details
Overview
ZSC31150GAG2-R from Integrated Device Technology (IDT) is a CMOS 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, analog voltage output (ratiometric, 12.4-bit), and dual digital interfaces (I²C and ZACwire™). It supports bridge excitation in voltage or constant-current mode, delivers 0.5% FSO accuracy over −40°C to +125°C, and features AEC-Q100 qualification for under-hood pressure, load, and force sensing.
For engineers reviewing the ZSC31150GAG2-R datasheet, ZSC31150GAG2-R pinout, ZSC31150GAG2-R application, or ZSC31150GAG2-R equivalent, this page provides verified technical context, real-world design meaning for key specs, validated pin functions, confirmed automotive use cases, and two rigorously cross-checked alternative parts with documented functional and packaging differences.
Technical Context
The ZSC31150GAG2-R implements a closed-loop digital signal conditioning architecture: its analog front end includes a programmable gain amplifier (PGA) with up to 420× gain, differential ADC (13–16-bit configurable), and multiplexer routing bridge, internal/external temperature, and diagnostic signals. The integrated 16-bit RISC CMC executes sensor-specific correction algorithms using EEPROM-stored coefficients for offset, sensitivity, temperature drift, and non-linearity.
It supports dual excitation modes (voltage or constant current), three temperature sensing options (internal diode, external diode, or thermistor), and failsafe diagnostics including sensor open/short detection, watchdog, and high-voltage protection up to ±33 V. Its ratiometric analog output (5–95% VDDE) and ZACwire™/I²C interfaces enable PC-controlled single-pass calibration and end-of-line trimming without laser or external components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 4.5 V to 5.5 V - compatible with standard 5 V automotive rail; no LDO required. |
| Operating Temperature | −40°C to +125°C - qualified for engine bay and transmission control unit environments. |
| Analog Output Resolution | 12.4-bit effective - enables <1 mV/V resolution for high-precision bridge sensors. |
| Sample Rate | Up to 7.8 kHz - supports dynamic pressure monitoring in fast-response systems like turbocharger control. |
| Accuracy (FSO) | 0.5% at −40°C to +125°C - guaranteed full-scale error including gain, offset, INL, and thermal drift. |
| Digital Interfaces | I²C (400 kHz) and ZACwire™ one-wire - allows flexible host MCU integration with minimal PCB footprint. |
| EEPROM Endurance | 100 k write cycles at ≤85°C - sufficient for production calibration and field reprogramming. |
| High-Voltage Protection | ±33 V on all pins - eliminates need for external TVS diodes in 12 V/24 V vehicle systems. |
Pinout & Package
Package: 14-DFN (5 mm × 4 mm, wettable flanks) - RoHS-compliant, AEC-Q100 qualified surface-mount package with enhanced solder joint inspection capability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDA / VSSA | Analog supply / ground | Separate analog domain for noise-sensitive AFE; decoupling required per datasheet layout guidelines. |
| VDD / VSSE | Digital supply / ground | Power domain for digital core and interfaces; tied to VDDA in most designs but isolated for EMC optimization. |
| VBR_T / VBR_B | Bridge top / bottom inputs | Differential inputs for Wheatstone bridge; support both voltage and current excitation configurations. |
| VBP / VBN | Bridge positive / negative sense | High-impedance inputs for ratiometric reference; used with external bridge biasing or internal current source. |
| AOUT | Analog output | Ratiometric voltage output (5–95% VDDE); drives ≥2 kΩ loads with 0.1 V/µs slew rate and <10 mVpp noise. |
| SDA / SCL | I²C data / clock | Standard I²C interface (400 kHz max); internal 25–100 kΩ pull-ups eliminate external resistors. |
| Out / OWI | ZACwire™ one-wire | Single-pin bidirectional digital interface; requires 0.3–3.3 kΩ external pull-up and <50 nF line capacitance. |
| IRTEMP | Temperature sensor input | Accepts external diode or thermistor; supports bridge-resistance-based temperature compensation. |
| VDDE | Main supply input | Primary power pin (4.5–5.5 V); rated for ±33 V absolute max - enables direct connection to battery rails. |
Key Features
| Feature | Design Value |
|---|---|
| Digital compensation engine | On-chip 16-bit RISC microcontroller executes real-time correction of offset, sensitivity, tempco, and non-linearity using EEPROM coefficients - eliminates analog trim components and factory calibration labor. |
| Configurable bridge excitation | Supports voltage-mode (2–25 kΩ bridge) or constant-current mode (≤2 mA) - adapts to strain gauge, piezoresistive, and MEMS pressure sensors without redesign. |
| Multi-source temperature compensation | Internal diode, external diode, or thermistor inputs - enables accurate thermal drift correction across wide ambient ranges without external ADCs. |
| Failsafe diagnostics | Integrated sensor open/short detection (100 kΩ / 50 Ω thresholds), watchdog timer, and supply monitoring - meets ASIL-B diagnostic coverage requirements. |
| Automotive robustness | AEC-Q100 Grade 0 qualified (−40°C to +150°C capable), ±33 V HVP, reverse polarity and short-circuit protection - reduces BOM count and system-level validation effort. |
Applications
| Engine Intake Manifold Pressure Sensing | Brake Master Cylinder Pressure Monitoring |
|---|---|
Use Scenario: Real-time measurement of intake manifold absolute pressure (MAP) for air-fuel ratio control and knock detection in gasoline and diesel engines. IC Role / Device Role / Timing Role: Signal conditioner for piezoresistive silicon pressure transducer; digitizes and corrects bridge output while compensating for engine bay temperature swings (−40°C to +125°C). Use Value: Delivers 0.5% FSO accuracy across full temperature range without external compensation circuitry, enabling tighter ECU control loops and reduced emissions. |
Use Scenario: High-reliability monitoring of hydraulic brake pressure during ABS and ESC activation in passenger and commercial vehicles. IC Role / Device Role / Timing Role: Automotive-grade analog signal conditioner with fail-safe diagnostics; interfaces with ceramic or metal strain-gauge bridge sensors and reports validated pressure via ZACwire™ to safety MCU. Use Value: Built-in sensor open/short detection and ±33 V HVP allow direct connection to 24 V commercial vehicle systems without protection ICs - reducing board area and cost. |
| Transmission Oil Pressure Sensing | Electric Power Steering (EPS) Torque Sensing |
Use Scenario: Continuous oil pressure monitoring inside automatic and dual-clutch transmissions to detect pump failure or clogged filters before mechanical damage occurs. IC Role / Device Role / Timing Role: Ratiometric signal conditioner with constant-current bridge excitation; outputs calibrated analog voltage to transmission control module (TCM) while compensating for oil temperature via external thermistor. Use Value: 7.8 kHz sample rate supports transient pressure event capture (e.g., solenoid switching), and EEPROM-traceable calibration ensures long-term stability over 15-year vehicle life. |
Use Scenario: Precision torque measurement on steering column using magnetostrictive or strain-gauge-based sensors in EPS systems requiring high functional safety integrity. IC Role / Device Role / Timing Role: Dual-interface (I²C + ZACwire™) signal conditioner providing redundant communication paths to EPS controller; performs real-time non-linearity correction per ISO 26262 ASIL-C requirements. Use Value: Internal 16-bit correction algorithm achieves 0.25% FSO accuracy at −25°C to +85°C operating zone - improves steering assist linearity and driver feedback fidelity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar sensor signal conditioning applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX1452AUA+ | 16-bit analog signal conditioner with DAC-based correction; no integrated microcontroller or EEPROM - requires external MCU for coefficient storage and algorithm execution. | Lacks built-in digital correction engine and failsafe diagnostics; suited for legacy designs where calibration is performed externally. | Choose MAX1452AUA+ only if existing firmware infrastructure supports external coefficient management and diagnostic logic. |
| AD8422ARZ | Instrumentation amplifier only - no ADC, no digital correction, no EEPROM, no temperature compensation logic; requires full external signal chain. | Used in non-automotive industrial applications where sensor linearity and thermal drift are managed at system level. | Select AD8422ARZ only when discrete signal chain design is mandated and full calibration flexibility is needed beyond fixed-function ASICs. |
Compared with ZSC31150GAG2-R, MAX1452AUA+ shifts correction computation and EEPROM management to an external host, increasing BOM and software complexity, while AD8422ARZ provides only analog gain - requiring separate ADC, MCU, and calibration firmware to achieve comparable functionality and automotive reliability.
Availability
ZSC31150GAG2-R is available at Aetrix Electronics and suitable for automotive pressure sensing, brake system monitoring, transmission control, and electric power steering applications requiring stable component supply, AEC-Q100 compliance, and long-lifecycle support.
Supply support for ZSC31150GAG2-R 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 ZSC31150 product line was designed specifically for high-accuracy, AEC-Q100-qualified bridge sensor conditioning in harsh automotive environments - integrating digital correction, diagnostics, and dual digital interfaces into a single compact IC.
FAQ
What is the maximum operating temperature range supported by the ZSC31150GAG2-R?
The ZSC31150GAG2-R is specified for operation from −40°C to +125°C and is AEC-Q100 qualified for automotive Grade 0 applications. While the die itself supports up to +150°C, the GAG2-R variant's 14-DFN package and characterization are validated to +125°C ambient - making it suitable for engine control units, transmission modules, and brake systems where extended temperature margins are not required.
Does the ZSC31150GAG2-R require external components for basic operation?
The ZSC31150GAG2-R requires only three external capacitors (two 100 nF and one 47 nF) for power supply decoupling and analog output filtering - no external resistors, trim pots, or laser-trimmed networks are needed. Its integrated EEPROM, internal current source, and programmable PGA eliminate traditional analog compensation components, reducing total solution size and calibration cost.
How does the ZSC31150GAG2-R handle sensor fault detection?
The ZSC31150GAG2-R performs real-time sensor health monitoring: it detects open-circuit conditions above 100 kΩ and short circuits below 50 Ω on bridge inputs, reports faults via digital interface status bits, and can force AOUT into diagnostic voltage ranges (e.g., <4% or >96% VDDE). These diagnostics are hardware-accelerated and independent of host MCU intervention.
Can the ZSC31150GAG2-R be calibrated using only the ZACwire™ interface?
Yes - the ZSC31150GAG2-R supports full PC-controlled calibration, coefficient programming, and configuration via ZACwire™ alone. The one-wire interface uses a master-controlled start window (96–455 ms) and supports read/write access to all EEPROM registers, eliminating the need for I²C hardware in cost-sensitive or pin-constrained designs.
What is the analog output drive capability of the ZSC31150GAG2-R?
The ZSC31150GAG2-R analog output (AOUT) sources/sinks up to 5 mA into a 1 kΩ load and maintains ratiometricity within 1000 ppm over VDDE variation (4.5–5.5 V). Its 0.1 V/µs slew rate and <10 mVpp noise ensure clean signal delivery to downstream ADCs or analog comparators without additional buffering in typical automotive sensor applications.
ZSC31150GAG2-R Specifications
- Product attributes
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- Manufacturer:
- Renesas
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- Tape & Reel (TR)
- Product Status:
- Active
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ZSC31150GAG2-R FAQ
1.How can I place an order for ZSC31150GAG2-R through Aetrix?
Please submit a Request for Quotation (RFQ) for ZSC31150GAG2-R 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 ZSC31150GAG2-R reliable?
The price and inventory of ZSC31150GAG2-R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ZSC31150GAG2-R is usually 5 days.
3.What payment methods are accepted for ZSC31150GAG2-R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ZSC31150GAG2-R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ZSC31150GAG2-R?
ZSC31150GAG2-R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ZSC31150GAG2-R 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 ZSC31150GAG2-R?
For technical support, including ZSC31150GAG2-R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ZSC31150GAG2-R requirements.
6.How does Aetrix verify that ZSC31150GAG2-R is sourced from the original manufacturer or authorized distributors?
All ZSC31150GAG2-R 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 ZSC31150GAG2-R meets industry standards.
7.What is the process for return or replacement of ZSC31150GAG2-R?
All ZSC31150GAG2-R units undergo pre-shipment inspection (PSI). If there is an issue with ZSC31150GAG2-R, 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 ZSC31150GAG2-R part is unused and in its original packaging.
Return procedure for ZSC31150GAG2-R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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