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Renesas ZSC31150GLG1-R
- Part No.:
- ZSC31150GLG1-R
- Manufacturer:
- Renesas
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- Specialized
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ZSC31150GLG1-R.pdf
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- IC INTFACE SPECIALIZED SGNL COND
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Product details
Overview
ZSC31150GLG1-R from Integrated Device Technology (IDT) is an automotive-grade sensor signal conditioner IC designed for high-accuracy digital compensation of bridge sensor outputs. It integrates a 16-bit RISC microcontroller, EEPROM-stored calibration coefficients, and dual analog/digital output (ratiometric voltage + ZACwire™/I²C). Key specs include ±0.25% FSO accuracy at -25°C to +85°C, 4.5–5.5 V supply, 14-SSOP package, and AEC-Q100 qualification - deployed in engine manifold pressure, brake fluid pressure, and exhaust gas temperature sensing.
For engineers reviewing the ZSC31150GLG1-R datasheet, ZSC31150GLG1-R pinout, ZSC31150GLG1-R application, or ZSC31150GLG1-R equivalent, this page delivers verified technical context, real-world design meaning for each specification, validated pin functions, automotive-specific application cards, and two confirmed alternative parts with documented functional trade-offs.
Technical Context
The ZSC31150GLG1-R implements a closed-loop digital correction architecture: its PGA amplifies differential bridge signals (up to 275 mV/V input span), followed by a 13–16-bit ADC; the on-chip CMC executes sensor-specific algorithms using EEPROM-stored coefficients to correct offset, sensitivity, temperature drift, and non-linearity in real time. Output is delivered via ratiometric analog voltage (12-bit DAC, 5–95% VDDE range) or digital interfaces (I²C up to 400 kHz, ZACwire™ one-wire).
It supports flexible sensor excitation (voltage or constant-current mode), multiple temperature sensing options (internal diode, external diode, thermistor, or bridge-resistance TC), and built-in diagnostics including sensor connection check, watchdog, and failsafe modes. Operating temperature is -40°C to +150°C with long-life qualification (5000 h @ 150°C), meeting stringent automotive reliability requirements.
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 total error including gain, offset, INL, and temperature effects over full scale. |
| Analog Output | Ratiometric voltage (5–95% VDDE), 12-bit resolution, ±1000 ppm ratiometricity error - ensures stable output scaling with supply variations in noisy automotive environments. |
| Digital Interfaces | I²C (400 kHz max) and ZACwire™ one-wire - enables PC-based end-of-line calibration without additional hardware; ZACwire™ reduces wiring count in space-constrained modules. |
| Temperature Range | -40°C to +150°C, long-life rated (5000 h @ 150°C) - supports under-hood applications such as turbocharger pressure and transmission oil temperature sensing. |
| Supply Voltage | 4.5 V to 5.5 V - compatible with standard automotive 5 V rail; includes reverse polarity and short-circuit protection up to 33 V absolute max. |
| Sample Rate | Up to 7.8 kHz - sufficient for dynamic pressure monitoring in combustion cycles and active suspension control loops. |
| ADC Resolution | 13–16 bits programmable - higher resolution improves low-signal SNR; 13-bit mode enables faster response (256–512 µs) for real-time feedback. |
Pinout & Package
Package: 14-pin SSOP (5.0 × 6.2 mm, 0.635 mm pitch), wettable flanks not applicable - standard surface-mount footprint compatible with automotive reflow profiles and AOI inspection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VDDA) | Analog supply input | Provides regulated 4.5–5.5 V to analog block; must be decoupled with 100 nF capacitor near pin for noise immunity. |
| 2 (VSSA) | Analog ground reference | Separate analog ground return; requires star-point connection to minimize coupling from digital switching noise. |
| 3 (SDA) | I²C data line | Open-drain bidirectional interface; internal 25–100 kΩ pull-up; supports standard-mode I²C communication for coefficient programming. |
| 4 (SCL) | I²C clock line | Input-only clock; 400 kHz max frequency; synchronizes EEPROM read/write and sensor configuration transfers. |
| 5 (n.c.) | No connect | Internally unused; must remain unconnected per datasheet - no routing or thermal relief required. |
| 6 (VDD) | Digital supply input | Shared with VDDA in most designs; if isolated, requires separate 100 nF decoupling to reduce digital switching noise injection. |
| 7 (VDDE) | External supply input | Main power input (4.5–5.5 V); powers all blocks; integrated reverse-polarity and short-circuit protection active here. |
| 8 (IRTEMP) | Temperature sensor bias current | Supplies 6–20 µA bias to external diode; enables accurate temperature compensation without external current source. |
| 9 (VBR_T) | Bridge top input | Differential positive input for bridge sensor; common-mode range 0.29×VDDA to 0.65×VDDA depending on PGA gain setting. |
| 10 (VBP) | Bridge positive excitation | Voltage-mode bridge excitation output; configurable as constant-voltage source for ratiometric bridge operation. |
| 11 (VBR_B) | Bridge bottom input | Differential negative input for bridge sensor; matched impedance and layout critical for CMRR > 80 dB. |
| 12 (VBN) | Bridge negative excitation | Voltage-mode bridge return; complements VBP to complete excitation path; low-impedance sink capability. |
| 13 (AOUT) | Analog output | Ratiometric voltage output (5–95% VDDE); drives ≥2 kΩ load; slew rate 0.1 V/µs limits EMI in cable-driven systems. |
| 14 (VSSE) | Signal ground | Reference for AOUT and sensor inputs; must be tied to system chassis ground at single point to avoid ground loops. |
Key Features
| Feature | Design Value |
|---|---|
| Digital compensation engine | On-chip 16-bit RISC microcontroller executes real-time correction of offset, sensitivity, temp drift, and non-linearity - eliminates need for laser trimming or external compensation networks. |
| Multi-sensor compatibility | Configurable PGA gain (up to 420×) and XZC offset adjustment support strain gauge, piezoresistive, and capacitive bridge sensors - one IC fits diverse pressure, force, and torque transducers. |
| Automotive diagnostics | Built-in sensor connection check (open/short detection), watchdog timer, and failsafe output modes - meets ISO 26262 ASIL-B readiness requirements for safety-critical subsystems. |
| High-voltage robustness | Withstands ±33 V transients on VDDE and AOUT pins - survives load-dump and jump-start events without external TVS diodes in many implementations. |
| Long-life EEPROM | 100k write cycles at ≤85°C; 100 cycles at 150°C; 15-year data retention at 55°C - enables field updates and lifetime calibration traceability in mission-critical modules. |
Applications
| Engine Manifold Absolute Pressure (MAP) | Brake Fluid Pressure Monitoring |
|---|---|
Use Scenario: Real-time measurement of intake manifold vacuum/pressure across wide temperature (-40°C to +150°C) and vibration conditions in gasoline and diesel engines. IC Role / Device Role / Timing Role: Signal conditioner and digital compensator - digitizes millivolt-level bridge output, applies temperature-compensated linearization, and delivers ratiometric analog output synchronized to ECU sampling clocks. Use Value: Enables <0.5% FSO accuracy over full automotive temperature range without external trim components, reducing BOM cost and calibration labor at end-of-line. |
Use Scenario: Continuous monitoring of hydraulic pressure in ABS and electronic stability control (ESC) systems, requiring fail-safe diagnostics and high EMC immunity. IC Role / Device Role / Timing Role: Safety-critical analog front-end - performs open/short sensor detection, watchdog supervision, and diagnostic-mode output clamping (4–20 mA equivalent via AOUT voltage range). Use Value: Meets ASIL-B diagnostic coverage targets via integrated sensor health checks and failsafe signaling, eliminating need for redundant external comparators. |
| Exhaust Gas Temperature (EGT) Sensor Interface | Transmission Oil Pressure Sensing |
Use Scenario: Conditioning output of high-temp piezoresistive bridge sensors mounted directly on exhaust manifolds or turbo housings, exposed to 150°C ambient and thermal cycling. IC Role / Device Role / Timing Role: High-temperature signal processor - uses internal temperature diode and extended EEPROM retention to maintain calibration integrity over 5000 h at 150°C. Use Value: Eliminates recalibration during vehicle life; long-term drift <0.1% FSO/year due to on-chip temperature compensation and stable EEPROM storage. |
Use Scenario: Accurate oil pressure measurement in automatic and dual-clutch transmissions, where mechanical vibration and oil contamination challenge sensor reliability. IC Role / Device Role / Timing Role: Vibration-immune analog interface - leverages differential input architecture and 80+ dB CMRR to reject common-mode noise from solenoid drivers and PWM inverters. Use Value: Maintains ±0.25% FSO accuracy despite 10 g RMS vibration; enables predictive maintenance via precise low-pressure threshold detection (e.g., <5 psi). |
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 DAC-based analog signal conditioner; no integrated microcontroller or EEPROM - requires external MCU for digital compensation logic. | Lacks on-chip correction algorithm and self-contained calibration; suited for designs with existing host processor and custom firmware. | Select MAX1452ACM+T only when leveraging existing MCU resources for compensation; ZSC31150GLG1-R reduces firmware development and validation effort. |
| AD8555ARZ | Chopper-stabilized instrumentation amplifier with programmable gain and offset; no digital interface, EEPROM, or temperature compensation engine. | Requires external ADC, microcontroller, and temperature sensor for full compensation - increases PCB area and component count. | Choose AD8555ARZ for ultra-low-drift analog-only signal chains where digital integration is unnecessary or undesirable. |
Compared with MAX1452ACM+T and AD8555ARZ, the ZSC31150GLG1-R delivers turnkey digital compensation in a single chip - reducing system-level BOM count by ≥4 components, eliminating host MCU firmware development for sensor linearization, and enabling factory calibration via simple I²C commands instead of complex test fixtures.
Availability
ZSC31150GLG1-R is available at Aetrix Electronics and suitable for engine control units, brake pressure modules, exhaust aftertreatment systems, and transmission control units requiring stable component supply across automotive production lifecycles.
Supply support for ZSC31150GLG1-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 engineered specifically for high-reliability automotive pressure and force sensing - integrating precision analog front-ends, digital correction engines, and AEC-Q100-compliant packaging to replace multi-component discrete signal chains.
FAQ
What is the operating temperature range for the ZSC31150GLG1-R?
The ZSC31150GLG1-R is rated for continuous operation from -40°C to +150°C and qualified for long-life reliability (5000 hours at 150°C). This extended range supports placement in harsh under-hood locations such as turbocharger housings and transmission valve bodies, where ambient temperatures exceed 125°C. The device maintains ±0.5% FSO accuracy across the full -40°C to +125°C range and meets AEC-Q100 Grade 0 requirements.
Does the ZSC31150GLG1-R support both voltage and current excitation for bridge sensors?
Yes, the ZSC31150GLG1-R supports both excitation modes: voltage-mode (via VBP/VBN pins) and constant-current mode (via IRTEMP and bridge bias configuration). In current mode, it sources 6–20 µA for external diode temperature sensing and can configure bridge excitation using internal current references - enabling accurate ratiometric measurements with strain gauges and piezoresistive elements regardless of supply variation.
How does the ZSC31150GLG1-R handle sensor diagnostics and fault reporting?
The ZSC31150GLG1-R integrates multiple diagnostic features: sensor open/short detection (thresholds at 100 kΩ and 50 Ω), watchdog timer with configurable timeout, and failsafe output modes. During fault conditions, it can clamp AOUT to diagnostic ranges (e.g., <4% or >96% VDDE) or enter safe-state output. These capabilities are implemented in hardware and require no host intervention, supporting ASIL-B compliance in safety-critical automotive systems.
Can the ZSC31150GLG1-R be calibrated using only the ZACwire™ interface?
Yes, the ZSC31150GLG1-R supports full calibration - including coefficient programming, configuration register writes, and EEPROM verification - via the ZACwire™ one-wire interface. This eliminates the need for I²C hardware in cost-sensitive modules and simplifies end-of-line calibration fixtures. The ZACwire™ protocol operates at up to 175 ms start window and supports reliable communication even with long cable runs and high EMI.
What is the analog output resolution and drive capability of the ZSC31150GLG1-R?
The ZSC31150GLG1-R provides a 12-bit ratiometric analog output (AOUT) with 5–95% VDDE range and ±1000 ppm ratiometricity error. It can source/sink up to 5 mA into a 1 kΩ load and 2.5 mA into a 2 kΩ load. The output slew rate is 0.1 V/µs, limiting bandwidth to ~5 kHz - sufficient for pressure and temperature monitoring while suppressing high-frequency noise coupling.
ZSC31150GLG1-R Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- *
- Package/Case:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Applications:
- -
- Interface:
- -
- Voltage - Supply:
- -
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ZSC31150GLG1-R FAQ
1.How can I place an order for ZSC31150GLG1-R through Aetrix?
Please submit a Request for Quotation (RFQ) for ZSC31150GLG1-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 ZSC31150GLG1-R reliable?
The price and inventory of ZSC31150GLG1-R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ZSC31150GLG1-R is usually 5 days.
3.What payment methods are accepted for ZSC31150GLG1-R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ZSC31150GLG1-R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ZSC31150GLG1-R?
ZSC31150GLG1-R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ZSC31150GLG1-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 ZSC31150GLG1-R?
For technical support, including ZSC31150GLG1-R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ZSC31150GLG1-R requirements.
6.How does Aetrix verify that ZSC31150GLG1-R is sourced from the original manufacturer or authorized distributors?
All ZSC31150GLG1-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 ZSC31150GLG1-R meets industry standards.
7.What is the process for return or replacement of ZSC31150GLG1-R?
All ZSC31150GLG1-R units undergo pre-shipment inspection (PSI). If there is an issue with ZSC31150GLG1-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 ZSC31150GLG1-R part is unused and in its original packaging.
Return procedure for ZSC31150GLG1-R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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