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Renesas ZSC31150GAD
- Part No.:
- ZSC31150GAD
- Manufacturer:
- Renesas
- Category:
- Sensor and Detector Interfaces
- Package:
- -
- Datasheet:
-
ZSC31150GAD.pdf
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- DICE (WAFER SAWN) - WAFFLE PACK
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Product details
Overview
ZSC31150GAD 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, analog voltage output (12.4-bit ratiometric), and dual digital interfaces (I²C and ZACwire™). Key confirmed parameters: ±0.25% FSO accuracy at −25°C to +85°C, 7.8 kHz max sample rate, 4.5–5.5 V supply, and AEC-Q100 qualification - deployed in precision pressure and force sensing systems.
For engineers reviewing the ZSC31150GAD datasheet, ZSC31150GAD pinout, ZSC31150GAD application, or ZSC31150GAD equivalent, this page delivers verified technical context, real-world interface behavior, calibrated performance boundaries, and validated alternative options for automotive-grade bridge sensor conditioning.
Technical Context
The ZSC31150GAD implements a fully integrated analog-digital signal path: differential bridge input feeds a programmable gain amplifier (PGA) with gains up to 420, followed by a 13–16-bit ADC and on-chip correction engine executing sensor-specific algorithms. Calibration coefficients are stored in on-chip EEPROM and applied in real time to offset, sensitivity, temperature drift, and non-linearity errors.
Dual output modes are supported: ratiometric analog voltage (5–95% VDDE, 12-bit DAC resolution) and digital outputs via I²C (400 kHz) or ZACwire™ one-wire interface. Temperature compensation uses internal diode, external diode, bridge resistance, or thermistor inputs - all configurable per application without hardware changes.
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 full-scale error budget for closed-loop control feedback |
| Analog Output | Ratiometric voltage (5–95% VDDE), 12-bit resolution, ≤10 mVPP noise - enables direct MCU ADC interfacing without external scaling |
| Sample Rate | Up to 7.8 kHz - supports dynamic pressure monitoring in fast-response automotive subsystems |
| Supply Voltage | 4.5 V to 5.5 V - compatible with standard 5 V automotive rail; includes reverse polarity and short-circuit protection |
| Operating Temp | −40°C to +125°C - qualified per AEC-Q100 Grade 0 - suitable for under-hood engine management sensors |
| Digital Interfaces | I²C (400 kHz) and ZACwire™ one-wire - enable PC-based end-of-line calibration and field reconfiguration without protocol stack overhead |
| Protection | High-voltage tolerance (±33 V), ESD robustness, and diagnostic watchdog - reduces need for external TVS and fault-handling circuitry |
Pinout & Package
Package: 14-pin SSOP (Small Outline Package), 14-DFN (5 × 4 mm, wettable flanks), or die - ZSC31150GAD corresponds to the SSOP14 variant per ordering code GAG1/GAG2-R/GEG1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDA / VSSA | Analog supply / ground | Separate analog domain for precision AFE operation; decoupling required per datasheet layout guidelines |
| VDD / VDDE / VSSE | Digital supply / power return | VDD = core logic; VDDE = main supply (4.5–5.5 V); VSSE = system ground reference for all analog/digital domains |
| VBP / VBN | Bridge positive/negative input | Differential inputs for Wheatstone bridge; support voltage or constant-current excitation modes |
| AOUT | Analog output | Ratiometric voltage output (5–95% VDDE); sink/source capable up to 5 mA - drives 1 kΩ loads directly |
| SDA / SCL | I²C data/clock | Open-drain, 400 kHz compliant; internal pull-ups (25–100 kΩ) - eliminates external resistors in most configurations |
| Out / OWI | ZACwire™ one-wire | Single-pin bidirectional digital interface; supports calibration and diagnostics with minimal PCB routing |
| IRTEMP / VBR_T / VBR_B | Temp sensor inputs | Support external diode, thermistor, or bridge-resistance-based temperature measurement for compensation |
Key Features
| Feature | Design Value |
|---|---|
| Digital compensation engine | On-chip 16-bit RISC MCU executes real-time correction of offset, sensitivity, temp drift, and non-linearity using EEPROM-stored coefficients |
| Multi-sensor compatibility | Configurable PGA gain (up to 420), XZC offset range (±300% VIN_SP), and excitation mode selection - adapts to diverse bridge sensors without redesign |
| End-of-line calibration | I²C/ZACwire™ interfaces allow single-pass, PC-controlled coefficient programming - eliminates laser trimming and reduces test time |
| Robust automotive interface | ±33 V absolute max rating, reverse polarity protection, short-circuit current limiting (±25 mA), and AEC-Q100 Grade 0 qualification - simplifies front-end protection design |
| Traceability & diagnostics | User-defined EEPROM fields store serial numbers and calibration logs; built-in sensor connection check (100 kΩ open/50 Ω short detection) |
Applications
| Engine Oil Pressure Sensing | Brake Master Cylinder Pressure |
|---|---|
|
Use Scenario: Real-time monitoring of oil pressure across cold start to full-load operating conditions in ICE and hybrid powertrains. IC Role / Device Role / Timing Role: Signal conditioner performing ratiometric analog output generation and temperature-compensated linearization of piezoresistive bridge sensor. Use Value: Delivers ±0.25% FSO accuracy over −25°C to +85°C, enabling precise low-pressure detection (<1 bar) critical for early wear diagnostics. |
Use Scenario: Closed-loop pressure feedback in electro-hydraulic brake (EHB) systems requiring fail-safe analog output and diagnostic capability. IC Role / Device Role / Timing Role: Automotive-grade bridge signal conditioner with AEC-Q100 qualification, providing ratiometric AOUT and ZACwire™ diagnostics. Use Value: Integrated short/open detection and ±33 V HV protection eliminate external fault-monitoring circuitry, reducing BOM count and board area. |
| Transmission Fluid Pressure | Exhaust Gas Recirculation (EGR) Valve Position |
|
Use Scenario: High-temperature fluid pressure measurement inside automatic transmission housings (up to +150°C ambient). IC Role / Device Role / Timing Role: Signal conditioner with extended temperature range (−40°C to +125°C), supporting internal diode or external thermistor compensation. Use Value: Enables accurate pressure-to-voltage conversion under thermal stress, maintaining <0.5% FSO error across full automotive temperature range. |
Use Scenario: Linear position feedback from strain-gauge-based EGR valve actuators subject to vibration and thermal cycling. IC Role / Device Role / Timing Role: Bridge sensor conditioner with programmable gain (up to 420) and 7.8 kHz sampling - captures rapid valve movement dynamics. Use Value: High-resolution (12.4-bit analog, 16-bit digital) output ensures sub-degree angular resolution for closed-loop EGR control stability. |
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 |
|---|---|---|---|
| MAX1452ACM+T | 16-bit sigma-delta ADC, no integrated microcontroller; requires external EEPROM and host processor for compensation math | Lacks on-chip correction algorithm - demands additional firmware development and calibration infrastructure | Choose when legacy analog signal chain architecture must be preserved and host MCU resources are available |
| AD8422ARZ | Instrumentation amplifier only - no ADC, no digital interface, no temperature compensation logic or EEPROM | Requires full external signal chain (ADC, processor, memory, communication) for complete sensor conditioning | Choose only for ultra-low-noise analog pre-amplification where digital correction is handled elsewhere |
Compared with MAX1452ACM+T and AD8422ARZ, the ZSC31150GAD integrates correction computation, EEPROM storage, dual digital interfaces, and automotive-grade protection - reducing total system component count by ≥4 ICs and eliminating custom calibration software development.
Availability
ZSC31150GAD is available at Aetrix Electronics and suitable for engine management, brake control, and transmission monitoring applications requiring stable component supply, AEC-Q100 compliance, and long-term automotive lifecycle support.
Supply support for ZSC31150GAD 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, designs high-performance timing, memory interface, RF, and sensor signal conditioning ICs for automotive, industrial, and communications markets.
The ZSC31150 product line targets automotive bridge sensor signal conditioning - delivering integrated digital correction, AEC-Q100 reliability, and factory-calibration-ready architecture for pressure, force, and load cells.
FAQ
What is the primary function of the ZSC31150GAD in an automotive sensor system?
The ZSC31150GAD serves as a complete bridge sensor signal conditioner: it amplifies low-level Wheatstone bridge outputs, digitally corrects offset, sensitivity, temperature drift, and non-linearity using on-chip EEPROM-stored coefficients, and delivers calibrated results via ratiometric analog voltage or I²C/ZACwire™ digital interfaces. Its integrated 16-bit RISC microcontroller eliminates need for external processing in ZSC31150GAD-based designs.
Does the ZSC31150GAD support both voltage and current excitation for bridge sensors?
Yes, the ZSC31150GAD supports both excitation modes: voltage-mode biasing (via VBP/VBN pins) and constant-current excitation (programmable up to 2 mA). Configuration is set via EEPROM registers during calibration - no hardware change is needed to switch between modes in ZSC31150GAD implementations.
What temperature compensation methods does the ZSC31150GAD support?
The ZSC31150GAD supports four temperature compensation sources: internal diode (TS), external diode (IRTEMP), bridge resistance (VBR_T/VBR_B), and external thermistor (VBR_T). Each method is selectable in configuration EEPROM - enabling optimal drift correction for specific sensor physics without modifying ZSC31150GAD hardware.
Is the ZSC31150GAD pin-compatible with other members of the ZSC31150 family?
Yes - all ZSC31150 variants (including ZSC31150GAD, ZSC31150GEG2-R, ZSC31150GAG1) share identical 14-pin SSOP and 14-DFN pinouts and electrical behavior. Differences are limited to temperature grade (−40°C to +125°C vs. +150°C) and packaging - ZSC31150GAD uses SSOP14 and is rated for −40°C to +125°C operation.
How is calibration performed for the ZSC31150GAD?
Calibration for the ZSC31150GAD is performed via I²C or ZACwire™ interface using IDT's Mass Calibration System (MSC) or evaluation kit software. The process writes sensor-specific coefficients (offset, sensitivity, temp coefficients) into on-chip EEPROM - enabling one-time, end-of-line digital trimming without lasers or external components in the ZSC31150GAD signal path.
ZSC31150GAD Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- -
- Series:
- -
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- Type:
- -
- Input Type:
- -
- Output Type:
- -
- Current - Supply:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
ZSC31150GAD FAQ
1.How can I place an order for ZSC31150GAD through Aetrix?
Please submit a Request for Quotation (RFQ) for ZSC31150GAD 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 ZSC31150GAD reliable?
The price and inventory of ZSC31150GAD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ZSC31150GAD is usually 5 days.
3.What payment methods are accepted for ZSC31150GAD?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ZSC31150GAD transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ZSC31150GAD?
ZSC31150GAD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ZSC31150GAD 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 ZSC31150GAD?
For technical support, including ZSC31150GAD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ZSC31150GAD requirements.
6.How does Aetrix verify that ZSC31150GAD is sourced from the original manufacturer or authorized distributors?
All ZSC31150GAD 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 ZSC31150GAD meets industry standards.
7.What is the process for return or replacement of ZSC31150GAD?
All ZSC31150GAD units undergo pre-shipment inspection (PSI). If there is an issue with ZSC31150GAD, 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 ZSC31150GAD part is unused and in its original packaging.
Return procedure for ZSC31150GAD:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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