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Renesas ZSC31150GAG1-R
- Part No.:
- ZSC31150GAG1-R
- Manufacturer:
- Renesas
- Category:
- Specialized
- Package:
- 14-SSOP (0.209", 5.30mm Width)
- Datasheet:
-
ZSC31150GAG1-R.pdf
- Description:
- IC INTERFACE SPECIALIZED 14SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,083
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Product details
Overview
ZSC31150GAG1-R from Integrated Device Technology (IDT) is an automotive-grade sensor signal conditioner IC designed to digitize, linearize, and temperature-compensate bridge sensor outputs. It integrates a 16-bit RISC microcontroller, EEPROM for calibration coefficients, PGA with up to 420× gain, 13–16-bit ADC, and dual-output capability (ratiometric analog voltage or ZACwire™/I²C digital interface). It delivers 0.5% FSO accuracy over −40°C to +125°C and supports end-of-line calibration in production.
For engineers reviewing the ZSC31150GAG1-R datasheet, ZSC31150GAG1-R pinout, ZSC31150GAG1-R application, or ZSC31150GAG1-R equivalent, this page provides verified technical context, validated pin functions, real-world automotive use cases, and two confirmed alternative parts with documented functional and packaging differences.
Technical Context
The ZSC31150GAG1-R implements a closed-loop digital correction architecture: differential bridge signals are amplified by a programmable-gain amplifier (PGA), digitized via a 13–16-bit successive-approximation ADC, then corrected using sensor-specific coefficients stored in on-chip EEPROM. Its internal 16-bit RISC microcontroller executes a ROM-resident correction algorithm covering offset, sensitivity, temperature drift (−40°C to +125°C), and non-linearity.
It supports three temperature sensing methods-internal diode, external diode, or thermistor-and offers dual excitation modes (voltage or constant-current bridge biasing). Output options include a ratiometric analog voltage (12.4-bit effective resolution, 5–95% VDDE range) or digital output via ZACwire™ (one-wire) or I²C (400 kHz), enabling PC-controlled calibration and diagnostics.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 4.5 V to 5.5 V - compatible with standard 5 V automotive rails; no external regulator required. |
| Operating Temperature | −40°C to +125°C - qualified per AEC-Q100 Grade 1; suitable for under-hood pressure, position, and force sensors. |
| Analog Output Accuracy | 0.5% FSO - guaranteed full-scale output error across full temp range; includes gain, offset, INL, and thermal effects. |
| ADC Resolution | 13–16 bit - selectable resolution enables trade-off between noise immunity (higher bits) and response time (up to 7.8 kHz sample rate). |
| Digital Interfaces | ZACwire™ (one-wire) and I²C - both support full EEPROM programming, coefficient upload, and real-time diagnostics without additional protocol hardware. |
| Protection Features | 33 V absolute max rating, reverse polarity protection, short-circuit tolerant AOUT, and built-in sensor connection check - reduces need for external TVS or discrete protection. |
| Calibration Storage | On-chip EEPROM - retains 100k write cycles at ≤85°C; enables one-pass, end-of-line digital calibration without laser trimming or external components. |
Pinout & Package
Package: 14-pin SSOP (Small Outline Package), 5.3 mm × 6.2 mm body, 0.635 mm pitch, RoHS-compliant, moisture-sensitive level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDA / VSSA | Analog supply / analog ground | Separate analog domain pins reduce noise coupling; require local 100 nF decoupling per datasheet layout guidance. |
| VDD / VSSE | Digital supply / digital ground | Independent digital power domain; allows clean logic-level signaling even with noisy sensor excitation paths. |
| VBP / VBN | Bridge positive / negative input | Differential inputs accept ratiometric bridge signals; support ±275 mV/V input span with PGA gain up to 420. |
| AOUT | Analog output | Ratiometric voltage output (5–95% VDDE); 12-bit DAC with 2.5 mA drive capability into ≥2 kΩ load. |
| SDA / SCL | I²C data / clock | Standard-mode I²C (400 kHz); open-drain with internal 25–100 kΩ pull-up; supports EEPROM configuration and real-time register access. |
| Out / OWI | ZACwire™ bidirectional I/O | Single-wire digital interface; requires external 0.3–3.3 kΩ pull-up; used for calibration, diagnostics, and firmware updates. |
| VBR_T / VBR_B | Bridge top/bottom voltage sense | Enable bridge voltage monitoring for excitation integrity checks and diagnostics; referenced to VSSA. |
| IRTEMP | Temperature sensor current source | Programmable current source (6–20 µA) for external diode or thermistor biasing; supports multiple temperature compensation schemes. |
Key Features
| Feature | Design Value |
|---|---|
| Digital sensor correction engine | 16-bit RISC MCU executing ROM-based algorithm with EEPROM-stored coefficients - eliminates analog trim components and enables field recalibration. |
| Multi-mode bridge excitation | Configurable voltage or constant-current biasing - supports diverse strain gauge, pressure, and load cell topologies without redesign. |
| Triple temperature sensing | Internal diode, external diode, or thermistor channel - enables accurate thermal compensation across wide ambient ranges (−40°C to +125°C). |
| Integrated sensor health monitoring | Real-time open/short detection on bridge inputs (100 kΩ loss threshold, <50 Ω short threshold) - improves system-level functional safety compliance. |
| Automotive robustness | AEC-Q100 qualified, 33 V HV tolerance, reverse polarity protection, and ESD-hardened I/O - reduces BOM count and board area in harsh environments. |
Applications
| Automotive Brake Pressure Sensing | Engine Intake Manifold Absolute Pressure (MAP) |
|---|---|
|
Use Scenario: Real-time monitoring of hydraulic brake line pressure in ABS and ESC systems, operating continuously at 125°C under hood. IC Role / Device Role / Timing Role: Signal conditioner performing offset/temperature/non-linearity correction on piezoresistive bridge output; outputs ratiometric analog voltage synchronized to vehicle ECU sampling clocks. Use Value: Enables 0.5% FSO accuracy without external trimming, meeting ISO 26262 ASIL-B diagnostic coverage requirements via integrated sensor connection check and watchdog. |
Use Scenario: Measuring intake air pressure across turbocharged gasoline engines, exposed to rapid thermal cycling and vibration. IC Role / Device Role / Timing Role: Bridge signal conditioner with constant-current excitation and external thermistor compensation; communicates calibrated values via ZACwire™ for ECU integration. Use Value: Eliminates laser-trimmed resistors and external temperature sensors, reducing assembly cost and improving long-term stability over 15-year vehicle lifetime. |
| Electric Power Steering (EPS) Torque Sensing | Commercial Vehicle Air Suspension Height Control |
|
Use Scenario: High-reliability torque measurement on steering column using Wheatstone bridge, requiring fail-safe diagnostics and low-latency response. IC Role / Device Role / Timing Role: Fast-response signal conditioner (≤512 µs response time) with dual I²C/ZACwire™ interfaces for redundancy; performs real-time zero-point drift compensation. Use Value: Supports functional safety goals with built-in watchdog, memory CRC, and diagnostic output modes - reduces need for external safety monitors. |
Use Scenario: Monitoring air spring height in heavy-duty trucks, where sensors endure extreme shock, humidity, and wide temperature swings (−40°C to +125°C). IC Role / Device Role / Timing Role: Automotive-grade bridge conditioner with extended temperature qualification, ratiometric analog output, and EEPROM traceability for calibration history logging. Use Value: Provides traceable, field-updatable calibration data and meets OEM requirements for 15-year data retention in EEPROM at elevated temperatures. |
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+T | 16-bit sigma-delta ADC, fixed 5 V supply only, no on-chip microcontroller - requires external host for correction algorithm execution. | Lacks integrated digital correction engine; needs external MCU and software development for calibration - increases design cycle time and validation scope. | Choose when legacy analog signal chain architecture is preferred and host processor resources are available for real-time compensation. |
| AD8555ARZ | Chopper-stabilized instrumentation amp with programmable gain and offset, but no ADC, EEPROM, or digital interface - purely analog signal path. | No digital calibration capability; relies on external trimming or manual calibration - unsuitable for automated end-of-line calibration or field updates. | Choose for cost-sensitive, non-automotive applications where digital features are unnecessary and analog performance dominates. |
Compared with MAX1452AUA+T and AD8555ARZ, the ZSC31150GAG1-R uniquely integrates correction computation, EEPROM storage, and dual digital interfaces in a single AEC-Q100-qualified package - enabling drop-in replacement of analog signal chains while adding diagnostics, traceability, and production-line programmability.
Availability
ZSC31150GAG1-R is available at Aetrix Electronics and suitable for automotive brake pressure sensing, engine MAP monitoring, EPS torque measurement, and commercial vehicle suspension control requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for ZSC31150GAG1-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 safety-critical automotive systems - emphasizing integrated digital correction, diagnostic capability, and production-ready calibration infrastructure.
FAQ
What is the maximum operating temperature range supported by the ZSC31150GAG1-R?
The ZSC31150GAG1-R is rated for operation from −40°C to +125°C and is AEC-Q100 Grade 1 qualified. This temperature range is explicitly defined in the ordering information for the "GAG" suffix variant and confirmed in Table 1.2 of the datasheet. The device maintains 0.5% FSO accuracy across this full range, making it suitable for under-hood automotive applications such as brake pressure and MAP sensors.
Does the ZSC31150GAG1-R support both voltage-mode and current-mode bridge excitation?
Yes, the ZSC31150GAG1-R supports configurable bridge excitation: voltage mode (ratiometric to VDDA) and constant-current mode (via IRTEMP pin with 6–20 µA programmable current source). This flexibility is documented in Section 2.2 ("Application Modes") and electrical parameter 1.2.5 (RIBR) of the datasheet, enabling compatibility with diverse bridge sensor types including strain gauges and pressure transducers.
Can the ZSC31150GAG1-R perform temperature compensation using an external thermistor?
Yes, the ZSC31150GAG1-R supports external thermistor-based temperature compensation via the VTSER input channel. Electrical parameters 1.3.3.4 and 1.3.3.5 specify gain (1200–3500 ppm FS/(mV/V)) and input range (0–600 mV/V) for thermistor interfaces. Figure 3.2 in the datasheet shows a complete application circuit using an external thermistor for bridge temperature drift correction.
What digital interfaces does the ZSC31150GAG1-R provide for calibration and configuration?
The ZSC31150GAG1-R provides two digital interfaces: I²C (400 kHz standard mode) and ZACwire™ (a proprietary one-wire interface). Both support full EEPROM programming, real-time register access, and end-of-line calibration - as confirmed in Sections 1.4.1 and 1.4.2 and the "Available Support" section of the datasheet. No external protocol converter is needed.
Is the ZSC31150GAG1-R pin-compatible with other variants in the ZSC31150 family?
Yes, all ZSC31150 variants - including ZSC31150GAG1-R (SSOP14), ZSC31150GEG2-R (DFN), and ZSC31150GAB (die) - share identical pinouts per package type. The SSOP14 variant (ZSC31150GAG1-R) uses the same 14-pin assignment shown in Figure 5.1 and Table 4.1 of the datasheet, ensuring mechanical and electrical compatibility within the SSOP footprint across temperature grades.
ZSC31150GAG1-R Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 14-SSOP (0.209", 5.30mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Applications:
- Sensor Signal Conditioner - Resistive
- Interface:
- I2C, ZACwire™
- Voltage - Supply:
- 4.5V ~ 5.5V
- Supplier Device Package:
- 14-SSOP
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
ZSC31150GAG1-R FAQ
1.How can I place an order for ZSC31150GAG1-R through Aetrix?
Please submit a Request for Quotation (RFQ) for ZSC31150GAG1-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 ZSC31150GAG1-R reliable?
The price and inventory of ZSC31150GAG1-R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ZSC31150GAG1-R is usually 5 days.
3.What payment methods are accepted for ZSC31150GAG1-R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ZSC31150GAG1-R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ZSC31150GAG1-R?
ZSC31150GAG1-R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ZSC31150GAG1-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 ZSC31150GAG1-R?
For technical support, including ZSC31150GAG1-R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ZSC31150GAG1-R requirements.
6.How does Aetrix verify that ZSC31150GAG1-R is sourced from the original manufacturer or authorized distributors?
All ZSC31150GAG1-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 ZSC31150GAG1-R meets industry standards.
7.What is the process for return or replacement of ZSC31150GAG1-R?
All ZSC31150GAG1-R units undergo pre-shipment inspection (PSI). If there is an issue with ZSC31150GAG1-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 ZSC31150GAG1-R part is unused and in its original packaging.
Return procedure for ZSC31150GAG1-R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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