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Renesas ZSC31015EIG1-T
- Part No.:
- ZSC31015EIG1-T
- Manufacturer:
- Renesas
- Category:
- Specialized
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
ZSC31015EIG1-T.pdf
- Description:
- IC INTERFACE SPECIALIZED 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,857
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Product details
Overview
ZSC31015EIG1-T from Integrated Device Technology (IDT) is a programmable analog-output sensor signal conditioner for piezoresistive bridge sensors, featuring 14-bit ADC resolution, 12-bit ratiometric analog voltage output, and integrated ZACwire™ one-wire digital interface. It delivers ±0.1% FSO accuracy from –25°C to +85°C, supports supply voltages from +2.7 V to +5.5 V, and operates across –50°C to +150°C for automotive and industrial pressure/force sensing.
For engineers reviewing the ZSC31015EIG1-T datasheet, ZSC31015EIG1-T pinout, ZSC31015EIG1-T application, or ZSC31015EIG1-T equivalent, key selection criteria include its on-chip EEPROM calibration, rail-to-rail analog output with programmable clipping, diagnostic features (bridge short detection, power loss monitoring), and compatibility with low-span bridges (<1 mV/V).
Technical Context
The ZSC31015EIG1-T integrates a chopper-stabilized differential preamplifier with four selectable analog gains (6, 24, 48, 96), feeding a 14-bit charge-balanced ADC. Digital compensation corrects offset, sensitivity, temperature drift, and nonlinearity using coefficients stored in on-chip EEPROM.
Its output stage includes a 12-bit DAC with programmable high/low clipping limits and configurable rail-to-rail ratiometric or absolute analog voltage output. The ZACwire™ one-wire interface enables PC-based calibration and device configuration without external trimming components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| ADC Resolution | 14-bit - provides ≥16,384 discrete steps for high-precision bridge measurement before digital correction |
| Analog Output Resolution | 12-bit ratiometric - delivers 4,096-step output referenced to VDD, supporting 2.5%–95% VDD range |
| Accuracy (Digital) | ±0.1% FSO @ –25°C to +85°C - guaranteed full-scale output error for calibrated digital path only |
| Supply Voltage Range | +2.7 V to +5.5 V - operates directly from standard microcontroller rails; no external regulator needed |
| Operating Temperature | –50°C to +150°C - qualified for under-hood automotive and harsh industrial environments |
| Startup Time | 8 ms - output valid within 8 ms of power-up, enabling fast system wake-up and responsive sensing |
| Diagnostic Coverage | Bridge connection check, short detection, EEPROM signature validation, power loss detection - reduces need for external fault monitoring circuitry |
Pinout & Package
SOP8 (150 mil) package - surface-mount, 8-pin small-outline plastic package with 1.27 mm pitch, optimized for compact PCB layouts in sensor modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VBP | Bridge Positive Supply | Drives positive side of piezoresistive bridge; internally regulated and ratiometric to VDD |
| VBN | Bridge Negative Supply | Drives negative side of bridge; complements VBP for full-bridge excitation |
| VSS | Ground Reference | System ground return; used by diagnostics for power-loss detection |
| SIG™ | Signal Output / OWI Data | Configurable as analog voltage output (rail-to-rail) or bidirectional ZACwire™ serial data line |
| Vgate | JFET Gate Control | Enables external JFET for overvoltage protection (5.5–30 V operation); not required for 2.7–5.5 V use |
| VDD | Power Supply Input | +2.7 V to +5.5 V analog supply; powers all internal blocks including EEPROM and ADC |
| Bsink | Bridge Sink Current Output | Optional current sink for bridge biasing; enables 3-wire bridge configurations with reduced component count |
| ExtTemp | External Diode Input | Accepts voltage from external diode for enhanced temperature compensation beyond internal PTAT reference |
Key Features
| Feature | Design Value |
|---|---|
| Digital compensation engine | Corrects offset, sensitivity, temperature drift, and nonlinearity in real time using 16-bit correction coefficients stored in EEPROM |
| Programmable analog/digital gain | Analog gain settings (6/24/48/96) and digital gain (0–31) jointly support bridges with spans <1 mV/V and large offsets up to ±142% of span |
| Rail-to-rail analog output | 12-bit DAC delivers 2.5%–95% VDD output range with programmable upper/lower clipping limits to prevent saturation in noisy systems |
| ZACwire™ one-wire interface | Single-pin bidirectional serial interface for PC-based calibration, coefficient programming, and diagnostics readout-no UART or SPI required |
| On-chip diagnostics suite | Validates EEPROM integrity, detects open/shorted bridge connections, monitors VSS loss, and verifies ExtTemp diode presence-all without host MCU intervention |
Applications
| Industrial Pressure Transmitters | Automotive Brake Pressure Sensors |
|---|---|
Use Scenario: High-reliability pressure measurement in hydraulic control units where long-term stability and fault tolerance are critical. IC Role / Device Role / Timing Role: Signal conditioner performing real-time bridge amplification, 14-bit digitization, digital compensation, and ratiometric analog output generation. Use Value: Eliminates laser trimming and external compensation components; ±0.25% FSO accuracy over –50°C to +150°C ensures consistent performance across thermal cycling. | Use Scenario: Front-wheel brake line pressure monitoring in electronic stability control (ESC) systems requiring functional safety awareness. IC Role / Device Role / Timing Role: Sensor front-end providing calibrated analog output and built-in diagnostics (bridge short/open, power loss) for ASIL-B–level monitoring. Use Value: On-chip diagnostics reduce need for redundant external monitoring circuits; fast 1 ms response enables real-time pressure feedback during ABS actuation. |
| White Goods Load Cells | Portable Medical Force Sensors |
Use Scenario: Weight measurement in washing machines and dishwashers exposed to humidity, vibration, and wide ambient temperature swings. IC Role / Device Role / Timing Role: Bridge signal conditioner with internal temperature compensation (PTAT) and optional external diode support for improved thermal accuracy. Use Value: Internal reference eliminates need for external thermistor network; 24-bit customer ID field enables module-level traceability for warranty and service tracking. | Use Scenario: Compact handheld force gauges used in physical therapy devices requiring battery efficiency and precision over extended operating life. IC Role / Device Role / Timing Role: Low-power sensor AFE delivering calibrated analog output with current consumption scaling from 250 µA (low update rate) to 1 mA (1 kHz). Use Value: Adaptive power management extends battery life; 5 ms power-up-to-data-out enables instant-on operation after sleep mode wake-up. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar sensor signal conditioning applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX1452AESA+ | 16-bit DAC, 20-bit ADC, higher resolution but no integrated one-wire interface; requires external EEPROM and microcontroller for calibration | Used in high-accuracy lab instrumentation where PC calibration is impractical; lacks self-contained diagnostics | Select when highest analog precision is required and host MCU resources are available for calibration sequencing |
| PGA309AIPW | 16-bit DAC, 20-bit ADC, integrated PGA and voltage reference; uses I²C interface instead of one-wire; no built-in bridge short detection | Common in industrial process control transmitters with existing I²C infrastructure; requires external temperature sensor for full compensation | Select when I²C bus is already present and external temperature sensing is acceptable |
Compared with MAX1452AESA+ and PGA309AIPW, the ZSC31015EIG1-T uniquely combines single-pin ZACwire™ calibration, on-chip EEPROM, and comprehensive diagnostics in an SOP8 package-reducing BOM count, eliminating external trimming, and accelerating time-to-calibration without sacrificing –50°C to +150°C operation.
Availability
ZSC31015EIG1-T is available at Aetrix Electronics and suitable for industrial pressure transmitters, automotive brake sensors, white goods load cells, and portable medical force sensors requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for ZSC31015EIG1-T 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 communications, computing, and industrial markets.
The ZSC31015 product line targets piezoresistive sensor manufacturers needing factory-calibrated, drop-in signal conditioners with diagnostic capability-designed specifically to replace manual trimming and reduce test time in mass-produced pressure and force modules.
FAQ
What is the primary function of the ZSC31015EIG1-T in a sensor system?
The ZSC31015EIG1-T serves as a fully integrated sensor signal conditioner for piezoresistive bridge sensors. It performs analog amplification, 14-bit digitization, digital compensation of offset, sensitivity, temperature drift, and nonlinearity, then outputs the result as either a 12-bit ratiometric analog voltage or a digital ZACwire™ packet. Its design eliminates external trimming components and enables one-wire PC-based calibration-making the ZSC31015EIG1-T ideal for high-volume, high-accuracy pressure and force sensing modules.
Does the ZSC31015EIG1-T require external components for basic operation?
No, the ZSC31015EIG1-T operates with minimal external components: only a 0.1 µF decoupling capacitor between VDD and VSS is required for standard 2.7–5.5 V operation. External components like a JFET (for 5.5–30 V supply), temperature diode (for enhanced thermal compensation), or pull-up resistors (for ZACwire™) are optional and application-dependent-not mandatory for core functionality. This integration reduces BOM cost and board space versus discrete AFE solutions.
How does the ZSC31015EIG1-T achieve ±0.1% FSO accuracy?
The ZSC31015EIG1-T achieves ±0.1% FSO accuracy from –25°C to +85°C through a combination of on-chip 14-bit ADC digitization, digital correction using factory-programmed 16-bit coefficients stored in EEPROM, and internal temperature compensation via PTAT reference. Accuracy is specified for the calibrated digital signal path only and assumes proper bridge matching and calibration procedure per IDT's ZACwire™ protocol. The ZSC31015EIG1-T does not guarantee this accuracy when used with uncalibrated bridges or outside its validated temperature range.
Can the ZSC31015EIG1-T be used in automotive applications despite lacking AEC-Q100 qualification?
Yes-the ZSC31015EIG1-T is widely deployed in automotive subsystems such as brake pressure and HVAC sensors where full AEC-Q100 qualification is not mandated by the OEM. Its –50°C to +150°C operating range, integrated diagnostics (bridge short/open, power loss), and robust ESD/latch-up protection meet many Tier-2 and non-safety-critical requirements. However, for ASIL-B or higher applications, system-level validation and additional fault-handling firmware remain the responsibility of the end designer-not the ZSC31015EIG1-T itself.
What diagnostic functions are implemented inside the ZSC31015EIG1-T?
The ZSC31015EIG1-T implements six core diagnostics: (1) EEPROM signature verification, (2) bridge connection check (open detection), (3) bridge short detection (requires RBR ≥ 0.3 kΩ at 2.7 V), (4) power loss detection (monitors VSS integrity), (5) ExtTemp diode presence check, and (6) optional output short-circuit protection (enabled via Diag_cfg EEPROM word). All diagnostics execute autonomously on power-up or during normal operation-requiring no host MCU polling-and report status via dedicated diagnostic output levels (VDIA,H/VDIA,L) on the SIG™ pin.
ZSC31015EIG1-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- RBicLite™
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Applications:
- Sensor Signal Conditioner - Resistive
- Interface:
- ZACwire™ One-Wire Interface
- Voltage - Supply:
- 2.7V ~ 30V
- Supplier Device Package:
- 8-SOIC
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
ZSC31015EIG1-T FAQ
1.How can I place an order for ZSC31015EIG1-T through Aetrix?
Please submit a Request for Quotation (RFQ) for ZSC31015EIG1-T 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 ZSC31015EIG1-T reliable?
The price and inventory of ZSC31015EIG1-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ZSC31015EIG1-T is usually 5 days.
3.What payment methods are accepted for ZSC31015EIG1-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ZSC31015EIG1-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ZSC31015EIG1-T?
ZSC31015EIG1-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ZSC31015EIG1-T 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 ZSC31015EIG1-T?
For technical support, including ZSC31015EIG1-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ZSC31015EIG1-T requirements.
6.How does Aetrix verify that ZSC31015EIG1-T is sourced from the original manufacturer or authorized distributors?
All ZSC31015EIG1-T 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 ZSC31015EIG1-T meets industry standards.
7.What is the process for return or replacement of ZSC31015EIG1-T?
All ZSC31015EIG1-T units undergo pre-shipment inspection (PSI). If there is an issue with ZSC31015EIG1-T, 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 ZSC31015EIG1-T part is unused and in its original packaging.
Return procedure for ZSC31015EIG1-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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