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Renesas ZSC31015EIB
- Part No.:
- ZSC31015EIB
- Manufacturer:
- Renesas
- Category:
- Sensor and Detector Interfaces
- Package:
- -
- Datasheet:
-
ZSC31015EIB.pdf
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- WAFER (UNSAWN) - BOX
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Product details
Overview
ZSC31015EIB from Integrated Device Technology (IDT) is a programmable analog-output sensor signal conditioner optimized for piezoresistive bridge sensors. It delivers calibrated 12-bit ratiometric or absolute analog voltage output (±0.1% FSO accuracy @ −25°C to +85°C), supports one-wire ZACwire™ digital calibration, and integrates on-chip EEPROM, diagnostics, and temperature compensation - deployed in industrial pressure transducers and automotive brake sensors.
For engineers reviewing the ZSC31015EIB datasheet, ZSC31015EIB pinout, ZSC31015EIB application, or ZSC31015EIB equivalent, key selection criteria include its rail-to-rail analog output capability, 14-bit ADC with 12-bit DAC, diagnostic coverage (bridge short/EEPROM signature/power loss), −50°C to +150°C operating range, and SOP8 package compatibility with external JFET overvoltage protection up to 30 V.
Technical Context
The ZSC31015EIB implements a chopper-stabilized differential preamplifier with four selectable analog gains (6/24/48/96), feeding a 14-bit charge-balanced ADC. Digital correction applies 5th-order polynomial compensation for offset, sensitivity, temperature drift, and nonlinearity using coefficients stored in on-chip EEPROM.
Its output stage includes a 12-bit DAC with independently programmable high/low clipping limits and dual-mode operation: ratiometric analog voltage referenced to VDD or absolute analog voltage with internal PTAT reference. The ZACwire™ one-wire interface enables PC-based calibration without external trimming components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 2.7 V to 5.5 V (or 5.5 V to 30 V with external JFET) |
| Operating Temperature | −50°C to +150°C - supports under-hood automotive and industrial harsh environments |
| Analog Output Resolution | 12-bit DAC with ±0.2% VDD absolute error - ensures stable ratiometricity across supply variation |
| ADC Resolution | 14-bit with ±4 LSB INL - provides sufficient headroom for digital correction of sensor nonlinearities |
| Accuracy (Digital Mode) | ±0.1% FSO @ −25°C to +85°C - enables high-precision closed-loop control without post-calibration |
| Startup Time | 8 ms to valid output - meets fast-response requirements in safety-critical sensing loops |
| Diagnostics Coverage | Bridge connection check, short detection, EEPROM signature validation, power loss detection - reduces system-level fault injection risk |
Pinout & Package
SOP8 (150 mil) package - surface-mount, leaded plastic small-outline package with 1.27 mm pitch, RoHS-compliant, rated for −50°C to +150°C operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VBP | Bridge Positive Supply | Drives excitation voltage to positive side of piezoresistive bridge; supports ratiometric measurement |
| VBN | Bridge Negative Supply | Completes bridge excitation path; used with VBP for differential bridge biasing |
| VSS | Ground Reference | System ground return; required for power loss detection diagnostic when pull-down load resistor is present |
| SIG™ | Signal Output / One-Wire Interface | Configurable as analog voltage output (rail-to-rail) or ZACwire™ serial data I/O - single-pin dual-function interface |
| Vgate | JFET Gate Control | Enables external JFET for overvoltage protection (5.5–30 V supply); disables internal regulator |
| VDD | Analog Power Supply | Primary 2.7–5.5 V supply input; powers all analog/digital blocks except optional external JFET path |
| Bsink | Bridge Sink Current Output | Optional current sink for low-side bridge configuration; requires ≥0.3 kΩ bridge resistance for diagnostic validity |
| ExtTemp | External Diode Input | Accepts 150–800 mV signal from external diode for enhanced temperature compensation beyond internal PTAT |
Key Features
| Feature | Design Value |
|---|---|
| Digital compensation engine | Applies 5th-order polynomial correction for offset, sensitivity, temp drift, and nonlinearity - eliminates need for analog trimming |
| Programmable analog gain | Four settings (6/24/48/96) accommodate bridges with spans < 1 mV/V and large offsets - avoids ADC saturation during calibration |
| Integrated diagnostics | Real-time bridge short detection, EEPROM integrity check, and power loss monitoring - reduces field failure root cause analysis time |
| Rail-to-rail analog output | 12-bit DAC delivers 2.5%–95% VDD output range with ±0.2% VDD absolute error - maintains resolution across full supply range |
| ZACwire™ one-wire interface | Single-pin bidirectional serial communication for coefficient programming and readback - simplifies calibration setup and reduces test fixture cost |
Applications
| Industrial Pressure Transducers | Automotive Brake Sensors |
|---|---|
Use Scenario: High-accuracy pressure measurement in hydraulic systems with wide temperature swings (−40°C to +125°C). IC Role / Device Role / Timing Role: Signal conditioner that digitizes, compensates, and outputs calibrated analog voltage proportional to bridge deflection. Use Value: Enables ±0.25% FSO accuracy over −50°C to +150°C without external temperature sensors or laser trimming - reduces BOM count and calibration labor. |
Use Scenario: Real-time brake line pressure feedback in ABS/EBS modules where diagnostic coverage is critical. IC Role / Device Role / Timing Role: Fault-tolerant bridge signal conditioner with power loss detection and bridge short monitoring. Use Value: On-chip diagnostics detect open/short bridge faults within 1 ms response time - supports ISO 26262 ASIL-B functional safety requirements. |
| White Goods Load Cells | Portable Medical Weighing Scales |
Use Scenario: Low-power weight sensing in washing machines and dishwashers with battery-backed calibration retention. IC Role / Device Role / Timing Role: Low-quiescent-current (250 µA typical) signal conditioner with EEPROM-stored calibration coefficients. Use Value: 10-year data retention at 100°C and 100k write cycles at 85°C ensure calibration persistence across product lifetime - eliminates recalibration service visits. |
Use Scenario: Compact, battery-powered patient scales requiring fast startup and minimal external components. IC Role / Device Role / Timing Role: Single-chip solution providing 5 ms power-up-to-data-out and rail-to-rail analog output. Use Value: Eliminates external op-amps, references, and trimming resistors - reduces PCB area by >30% and enables sub-50 mm² sensor module designs. |
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, no integrated EEPROM; requires external serial EEPROM and separate calibration controller | Lacks on-chip diagnostics (no bridge short/power loss detection); limited to −40°C to +125°C | Choose for legacy designs already using MAX1452 toolchain; requires additional firmware and layout for EEPROM interface |
| AD8555ARZ | Chopper-stabilized amplifier only - no ADC, DAC, or digital compensation; analog-only signal chain | No digital calibration or diagnostics; requires external ADC/DAC/microcontroller for full compensation | Choose only if existing system has dedicated microcontroller handling compensation math and diagnostics logic |
Compared with MAX1452ACM+T and AD8555ARZ, the ZSC31015EIB integrates full signal chain (AFE, ADC, DSP, DAC, diagnostics) in one SOP8 package - reducing total component count by ≥7 parts and eliminating external trimming, while supporting wider temperature range and embedded diagnostics not available in either alternative.
Availability
ZSC31015EIB is available at Aetrix Electronics and suitable for industrial pressure transducers, automotive brake sensors, and white goods load cells requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for ZSC31015EIB 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 industrial, communications, and automotive markets.
The ZSC31015EIB belongs to IDT's RBicdLite™ family of configurable sensor signal conditioners, designed specifically to replace discrete analog compensation circuits in piezoresistive sensor modules - enabling rapid calibration, reduced footprint, and built-in diagnostics.
FAQ
What is the maximum supply voltage supported by ZSC31015EIB?
The ZSC31015EIB operates from 2.7 V to 5.5 V directly. With an external JFET connected to the Vgate pin, it supports supply voltages from 5.5 V to 30 V - enabling use in 12 V and 24 V automotive and industrial systems without external regulators. Absolute maximum rating is 6.0 V on VDD without JFET.
Does ZSC31015EIB require external components for basic operation?
No - the ZSC31015EIB requires only a 0.1 µF decoupling capacitor on VDD and a 100–470 nF bulk capacitor between VDD and VSS for stable operation. Internal temperature reference, oscillator, and EEPROM eliminate need for external trim components, op-amps, or precision references in standard configurations.
How does ZSC31015EIB achieve ±0.1% FSO accuracy?
The ZSC31015EIB achieves ±0.1% FSO accuracy via on-chip 14-bit ADC sampling, 5th-order digital compensation (offset, sensitivity, temperature drift, nonlinearity), and 12-bit DAC output - all calibrated using coefficients stored in EEPROM. This accuracy is specified over −25°C to +85°C and verified per datasheet Section 1.3.9.
Can ZSC31015EIB be used in AEC-Q100 qualified automotive applications?
No - the ZSC31015EIB is explicitly marked "Not AEC-Q100-qualified" in the datasheet. While it operates from −50°C to +150°C and includes diagnostics useful in automotive contexts, it lacks formal qualification testing per AEC-Q100 stress requirements. For qualified alternatives, consult Renesas' AEC-Q100-certified signal conditioners.
What diagnostic functions are implemented in ZSC31015EIB?
ZSC31015EIB implements six core diagnostics: EEPROM signature validation, bridge open/short detection, power loss detection (via VSS monitoring), external temperature diode connection check, sensor short detection, and internal oscillator health monitoring - all configurable via EEPROM bits and reported through SIG™ pin behavior or ZACwire™ status reads.
ZSC31015EIB 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:
- -
ZSC31015EIB FAQ
1.How can I place an order for ZSC31015EIB through Aetrix?
Please submit a Request for Quotation (RFQ) for ZSC31015EIB 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 ZSC31015EIB reliable?
The price and inventory of ZSC31015EIB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ZSC31015EIB is usually 5 days.
3.What payment methods are accepted for ZSC31015EIB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ZSC31015EIB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ZSC31015EIB?
ZSC31015EIB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ZSC31015EIB 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 ZSC31015EIB?
For technical support, including ZSC31015EIB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ZSC31015EIB requirements.
6.How does Aetrix verify that ZSC31015EIB is sourced from the original manufacturer or authorized distributors?
All ZSC31015EIB 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 ZSC31015EIB meets industry standards.
7.What is the process for return or replacement of ZSC31015EIB?
All ZSC31015EIB units undergo pre-shipment inspection (PSI). If there is an issue with ZSC31015EIB, 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 ZSC31015EIB part is unused and in its original packaging.
Return procedure for ZSC31015EIB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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