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Renesas ZSC31010CEG1-T
- Part No.:
- ZSC31010CEG1-T
- Manufacturer:
- Renesas
- Category:
- Specialized
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
ZSC31010CEG1-T.pdf
- Description:
- IC INTFACE SPECIALIZED SGNL COND
- Quantity:
- Payment:
- Shipping:
Inventory:2,924
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Product details
Overview
ZSC31010CEG1-T from Integrated Device Technology (IDT) is a sensor signal conditioner IC designed for precision calibration of resistive bridge sensors. It delivers digital offset/gain/linearity compensation over temperature, supports 14-bit ADC resolution, ±0.1% FSO accuracy at –25°C to +85°C, and provides selectable 0–1 V absolute or rail-to-rail ratiometric analog output - used in industrial pressure transducers and automotive load cells.
For engineers reviewing the ZSC31010CEG1-T datasheet, ZSC31010CEG1-T pinout, ZSC31010CEG1-T application, or ZSC31010CEG1-T equivalent, this page details its chopper-stabilized AFE, ZACwire™ one-wire interface, EEPROM-based second-order temperature compensation, and SOP8 package suitability for high-accuracy sensor front-ends in harsh environments.
Technical Context
The ZSC31010CEG1-T integrates a true differential chopper-stabilized 14-bit ADC with programmable analog gain (6–48), a DSP core executing correction math on EEPROM-stored coefficients, and dual-output capability: buffered 11-bit DAC for analog voltage output and ZACwire™ serial interface for digital bridge/temperature data. Its bandgap PTAT reference enables internal temperature sensing without external components.
It operates across –50°C to +150°C with supply flexibility: 2.7–5.5 V directly, or 5.5–30 V when paired with an external JFET regulator. The Bsink terminal supports active bridge excitation control, while N/C pin confirms SOP8-specific pin mapping per datasheet Figure 6.1 and Table 6.2.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| ADC Resolution | 14-bit - enables ≥12-bit effective resolution across 1.2–36 mV/V bridge sensitivities with gain selection. |
| Analog Output Accuracy | ±0.5% FSO @ –50°C to +150°C - specifies full-scale error bound for calibrated analog output under worst-case thermal stress. |
| Digital Interface | ZACwire™ One-Wire - single-pin bidirectional serial interface for PC-based calibration and real-time sensor/temperature readout. |
| Temperature Range | –50°C to +150°C - validated operating range supporting automotive under-hood and industrial process monitoring. |
| Supply Voltage | 2.7–5.5 V (direct); 5.5–30 V (with external JFET) - accommodates both low-power battery systems and high-voltage industrial rails. |
| EEPROM Endurance | 100k write cycles @ 85°C - ensures field recalibration capability over extended product lifecycle without wear-out risk. |
| Response Time | 1 ms typical - defines minimum time between valid bridge measurements, critical for dynamic pressure or force sensing. |
Pinout & Package
SOP8 (150 mil) package with 1.27 mm pitch, RoHS-compliant, rated for reflow soldering per Table 6.1 in datasheet.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - Bsink | Bridge sink driver | Active-low current sink for controlled bridge excitation; enables ratiometric accuracy by synchronizing bridge power with measurement cycle. |
| 2 - VBP | Bridge positive input | Differential high-side input for Wheatstone bridge; accepts common-mode voltages up to VDD – 1.3 V. |
| 3 - N/C | No connect | Unbonded pin in SOP8 package; must remain floating - no routing or grounding permitted. |
| 4 - VBN | Bridge negative input | Differential low-side input for Wheatstone bridge; matched impedance and offset tracking with VBP for common-mode rejection. |
| 5 - VSS | Analog ground | Primary analog return path; requires star-point connection to minimize noise coupling into sensitive AFE. |
| 6 - SIG™ | Analog output | Buffered DAC output supporting 0–1 V absolute or 0–VDD ratiometric modes; drives ≥2.5 kΩ load with <10 mV absolute error. |
| 7 - VDD | Supply voltage | Power input for analog/digital blocks; decoupling with 100–470 nF capacitor required per datasheet Section 1.2. |
| 8 - Vgate | JFET gate control | Drives external JFET for high-voltage regulation (5.5–30 V); open-drain output with internal pull-down for safe default state. |
Key Features
| Feature | Design Value |
|---|---|
| Second-order temperature compensation | Corrects gain/offset drift and bridge linearity using two independent PTAT-derived coefficients stored in EEPROM. |
| Chopper-stabilized AFE | Eliminates 1/f noise and offset drift in preamp and ADC, enabling stable µV-level bridge signal conditioning over temperature. |
| Rail-to-rail analog output | Delivers full 0–VDD swing with <16.5 mV lower limit and 95% VDD upper limit - maximizes dynamic range for ADC-driven microcontrollers. |
| ZACwire™ digital interface | Single-pin, Manchester-encoded serial bus requiring only pull-up resistor - reduces PCB routing complexity vs. I²C/SPI. |
| Internal bandgap PTAT reference | Provides accurate temperature sensing without external diode or sensor; enables simultaneous bridge and temperature measurement. |
Applications
| Industrial Pressure Transducers | Automotive Load Cells |
|---|---|
|
Use Scenario: High-accuracy pressure sensing in hydraulic systems, process control valves, and HVAC manifolds operating from –40°C to +125°C. IC Role / Device Role / Timing Role: Signal conditioner performing real-time digital correction of bridge nonlinearity and thermal drift before analog output delivery. Use Value: Achieves ±0.25% FSO analog accuracy without external trim components, reducing calibration labor and test fixture cost. |
Use Scenario: Dynamic force measurement in seat occupancy detection, brake pedal position, and suspension load monitoring. IC Role / Device Role / Timing Role: Sensor front-end providing synchronized bridge and temperature readings via ZACwire™ for ECU compensation algorithms. Use Value: 1 ms response time and –50°C to +150°C operation enable reliable performance in under-hood and cabin environments. |
| White Goods Level Sensors | Portable Medical Weighing Scales |
|
Use Scenario: Liquid level detection in washing machines and dishwashers using strain-gauge-based tank displacement sensing. IC Role / Device Role / Timing Role: Low-power analog output conditioner delivering 0–1 V ratiometric signal compatible with 3.3 V microcontroller ADC inputs. Use Value: 0.25 mA quiescent current at minimum update rate extends battery life in cordless appliance service tools. |
Use Scenario: Precision weight measurement in handheld clinical scales requiring CE/FDA-compliant accuracy and repeatability. IC Role / Device Role / Timing Role: Calibration anchor device storing factory-trimmed coefficients in EEPROM to maintain traceable metrology across product lifetime. Use Value: ±0.1% FSO digital accuracy at –25°C to +85°C meets Class III weighing standards without periodic recalibration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar sensor signal conditioning applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX1452AUA+ | 16-bit DAC, SPI interface, no integrated temperature sensor - requires external PTAT diode for thermal compensation. | Lacks single-wire simplicity and embedded temperature measurement; better suited for designs with existing SPI infrastructure. | Choose MAX1452AUA+ when higher DAC resolution is prioritized over integrated thermal sensing and board space is not constrained. |
| AD8555ARZ | Chopper-stabilized instrumentation amp + 12-bit DAC, no EEPROM or digital interface - analog-only signal chain. | Requires external microcontroller for coefficient storage and real-time correction math; no self-contained calibration capability. | Choose AD8555ARZ when system-level processing is already centralized and analog signal integrity is the sole priority. |
Compared with MAX1452AUA+ and AD8555ARZ, the ZSC31010CEG1-T uniquely integrates EEPROM-based second-order compensation, ZACwire™ one-wire configuration, and internal PTAT temperature sensing - eliminating external components and firmware development for basic bridge calibration tasks.
Availability
ZSC31010CEG1-T is available at Aetrix Electronics and suitable for industrial pressure transducers, automotive load cells, and white goods level sensors requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for ZSC31010CEG1-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, is a fabless semiconductor company specializing in timing, memory interface, RF, and sensor signal conditioning solutions.
The ZSC31010CEG1-T belongs to IDT's RBicLite™ family of sensor signal conditioners, engineered specifically for cost-sensitive, high-accuracy bridge sensor applications in industrial automation, building controls, and automotive subsystems.
FAQ
What is the primary function of the ZSC31010CEG1-T in a sensor system?
The ZSC31010CEG1-T serves as a complete sensor signal conditioner for resistive bridge sensors, performing digital offset, gain, and second-order linearity compensation over temperature using on-chip EEPROM-stored coefficients. It converts raw bridge signals into calibrated analog voltage outputs (0–1 V or rail-to-rail) or digital ZACwire™ data streams - eliminating external trimming components and simplifying system-level calibration. The ZSC31010CEG1-T integrates all necessary analog front-end, DSP, and interface functions in a single SOP8 package.
Does the ZSC31010CEG1-T support both analog and digital output simultaneously?
No, the ZSC31010CEG1-T does not support simultaneous analog and digital output. Its SIG™ pin delivers either a calibrated analog voltage (selectable 0–1 V absolute or 0–VDD ratiometric mode), while the ZACwire™ interface on the same pin (when configured for digital mode) outputs sequential bridge and optional temperature data. Mode selection is configured via EEPROM bits and fixed at power-up; switching requires reprogramming the device. The ZSC31010CEG1-T uses pin multiplexing to conserve package real estate without sacrificing functionality.
What is the role of the Bsink pin on the ZSC31010CEG1-T?
The Bsink pin on the ZSC31010CEG1-T is an active-low bridge excitation sink driver that controls current flow through the bottom leg of a Wheatstone bridge. When asserted, it synchronizes bridge power with the measurement cycle to improve ratiometric accuracy and reduce self-heating errors. Its nominal RDS(ON) is 10 Ω at VDD = 5 V, making it suitable for bridges with resistance >200 Ω. The ZSC31010CEG1-T datasheet specifies that low-resistance bridges introduce ratiometricity inaccuracy, so Bsink usage must be evaluated against bridge impedance and accuracy targets.
Can the ZSC31010CEG1-T operate from a 3.3 V supply?
Yes, the ZSC31010CEG1-T operates from 2.7 V to 5.5 V, fully supporting standard 3.3 V supply rails. At 3.3 V, its analog output maintains rail-to-rail capability (0–3.3 V) with guaranteed 95% upper limit and 16.5 mV lower limit, and its ZACwire™ interface remains functional with adjusted voltage thresholds (VZAC,low ≤ 0.2 × VDD, VZAC,high ≥ 0.8 × VDD). Current consumption scales linearly: 0.25–1.0 mA depending on update rate. The ZSC31010CEG1-T requires no design changes when migrating from 5 V to 3.3 V systems beyond verifying decoupling capacitor values per Section 1.2 of the datasheet.
How is temperature compensation implemented in the ZSC31010CEG1-T?
The ZSC31010CEG1-T implements temperature compensation using an on-chip bandgap PTAT (proportional-to-absolute-temperature) circuit that generates a precise reference voltage tracking thermal drift. This signal feeds the DSP core, which applies second-order correction coefficients (Gain_T, Offset_T, Linearity_T) stored in EEPROM to adjust bridge offset, sensitivity, and nonlinearity in real time. Compensation occurs digitally within the signal path before DAC conversion, enabling ±0.25% FSO accuracy from –50°C to +150°C without external sensors. The ZSC31010CEG1-T can also output the measured temperature value via ZACwire™ for system-level thermal management.
ZSC31010CEG1-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 ~ 5.5V, 5.5V ~ 30V
- Supplier Device Package:
- 8-SOIC
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
ZSC31010CEG1-T FAQ
1.How can I place an order for ZSC31010CEG1-T through Aetrix?
Please submit a Request for Quotation (RFQ) for ZSC31010CEG1-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 ZSC31010CEG1-T reliable?
The price and inventory of ZSC31010CEG1-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ZSC31010CEG1-T is usually 5 days.
3.What payment methods are accepted for ZSC31010CEG1-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ZSC31010CEG1-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ZSC31010CEG1-T?
ZSC31010CEG1-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ZSC31010CEG1-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 ZSC31010CEG1-T?
For technical support, including ZSC31010CEG1-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ZSC31010CEG1-T requirements.
6.How does Aetrix verify that ZSC31010CEG1-T is sourced from the original manufacturer or authorized distributors?
All ZSC31010CEG1-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 ZSC31010CEG1-T meets industry standards.
7.What is the process for return or replacement of ZSC31010CEG1-T?
All ZSC31010CEG1-T units undergo pre-shipment inspection (PSI). If there is an issue with ZSC31010CEG1-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 ZSC31010CEG1-T part is unused and in its original packaging.
Return procedure for ZSC31010CEG1-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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