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HomeProductsIntegrated Circuits (ICs)Interface - SpecializedZSC31015EIG1-T
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ZSC31015EIG1-T - IDT, Integrated Device Technology Inc

Manufacturer Part Number
ZSC31015EIG1-T
Manufacturer
IDT (Renesas Electronics Corporation)
Allelco Part Number
98D-ZSC31015EIG1-T
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
36,511 pcs available, New & Original
Parts Description
IC INTERFACE SPECIALIZED 8SOIC
Package
8-SOIC
Data sheet
-
RoHs Status
 
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In stock: 36511
  • Unit Price: $3.554
  • Subtotal: $0.00

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Quantity Unit Price Ext. Price
1+ $3.554 $3.55
200+ $1.376 $275.20
500+ $1.327 $663.50
1000+ $1.303 $1,303.00
The above prices does not include taxes and freight rates, which will be calculated on the order pages.

Specifications

ZSC31015EIG1-T Tech Specifications
IDT, Integrated Device Technology Inc - ZSC31015EIG1-T technical specifications, attributes, parameters and parts with similar specifications to IDT, Integrated Device Technology Inc - ZSC31015EIG1-T

Product Attribute Attribute Value
Manufacturer IDT (Renesas Electronics Corporation)
Voltage - Supply 2.7V ~ 30V
Supplier Device Package 8-SOIC
Series RBicLite™
Package / Case 8-SOIC (0.154", 3.90mm Width)
Product Attribute Attribute Value
Package Tube
Mounting Type Surface Mount
Interface ZACwire™ One-Wire Interface
Base Product Number ZSC31015
Applications Sensor Signal Conditioner - Resistive

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
Moisture Sensitivity Level (MSL) 3 (168 Hours)
ECCN EAR99
HTSUS 8542.39.0001

Frequently Asked Questions(FAQ)

How does the ZSC31015EIG1-T perform in high-voltage sensor conditioning applications, and what are the key design considerations when operating near its 30V supply limit?
The ZSC31015EIG1-T is engineered for robust performance across a wide supply range of 2.7V to 30V, making it suitable for industrial sensor signal conditioning where voltage transients or higher bus voltages are common. When operating near the 30V upper limit, designers must ensure adequate decoupling capacitance close to the device pins to suppress noise and prevent latch-up, particularly in environments with inductive loads or long cable runs. Additionally, the input protection diodes can handle up to ±30V relative to VDD, but sustained operation at maximum supply voltage without proper thermal management may reduce long-term reliability. The device's internal architecture supports bidirectional communication via the ZACwire™ interface, which simplifies wiring in multi-drop configurations while maintaining signal integrity under these conditions.
What distinguishes the ZSC31015EIG1-T from other sensor signal conditioners like the MAX31855 or AD7124 in terms of protocol support and integration level?
Unlike precision analog-to-digital converters such as the AD7124 or thermocouple amplifiers like the MAX31855, the ZSC31015EIG1-T is purpose-built for resistive sensor interfaces using the proprietary ZACwire™ one-wire protocol. This allows direct connection to Wheatstone bridge sensors without requiring an external microcontroller for protocol handling, reducing component count and software overhead. While the AD7124 offers higher resolution and multiple sensor inputs, it lacks native support for ZACwire™, necessitating additional logic for communication. Similarly, the MAX31855 focuses exclusively on temperature measurement via thermocouples and does not support general-purpose resistive sensing. The ZSC31015EIG1-T thus occupies a niche in cost-sensitive, space-constrained designs where simplicity and integration outweigh the need for high channel counts or extreme accuracy.
Can the ZSC31015EIG1-T be used with 5V microcontrollers without level shifting, and what impact does this have on timing and signal integrity?
Yes, the ZSC31015EIG1-T can interface directly with 5V microcontrollers since its digital I/O pins are compatible with standard 5V logic levels when powered from a 5V supply within the 2.7–30V range. However, if the system uses a 3.3V microcontroller but powers the ZSC31015EIG1-T from a higher voltage (e.g., 12V), care must be taken to avoid overdriving the logic inputs. The device accepts inputs down to 2.7V, so 3.3V outputs from the MCU will be interpreted correctly. Timing margins remain unaffected because the ZACwire™ protocol is designed to tolerate variations in clock stretching and propagation delays. That said, long trace lengths between the IC and microcontroller may introduce noise that could disrupt the one-wire communication unless pull-up resistors are carefully selected—typically 1kΩ to 10kΩ depending on bus capacitance and data rate.
What are the typical power consumption characteristics of the ZSC31015EIG1-T during active conversion versus sleep mode, and how do they affect battery-powered sensor node design?
In active mode, the ZSC31015EIG1-T typically consumes around 1.2 mA at 3V supply, with peak current spiking briefly during ADC conversion due to internal bias generation. During standby or sleep states, current draw drops below 1 µA, enabling multi-year battery life in intermittent-sampling applications. For example, using a 200 mAh coin cell with duty cycling every 10 seconds results in an estimated operational life exceeding two years. Designers should minimize wake-up time by configuring the internal oscillator appropriately and ensuring stable power delivery to avoid brownout resets. The low quiescent current, combined with efficient ZACwire™ command structure that enables burst readouts, makes this device well-suited for energy-constrained IoT endpoints where both cost and longevity are critical.
How does the ZSC31015EIG1-T handle fault detection in resistive sensor networks, and what diagnostic features are available for system-level troubleshooting?
The ZSC31015EIG1-T includes built-in diagnostics such as open-circuit detection and over-range indication through status bits returned via the ZACwire™ interface. If a connected resistive bridge becomes disconnected or experiences excessive resistance beyond the programmed threshold, the device flags this condition without requiring external comparators. Additionally, supply voltage monitoring ensures reliable operation even under marginal power conditions. These features reduce reliance on software-based polling routines and enhance system robustness in harsh environments. However, unlike more advanced signal conditioners with built-in self-test (BIST) circuitry, the ZSC31015EIG1-T assumes the integrity of the physical layer—so proper PCB layout, shielding, and connector selection remain essential for consistent performance.
What is the recommended layout strategy for minimizing noise coupling into the ZSC31015EIG1-T’s analog inputs when used with strain gauge bridges?
To maintain accuracy in sensitive analog measurements, the analog input traces should be routed separately from digital lines and kept short and shielded when possible. Ground planes beneath the sensor interface section help contain return currents and reduce ground loops. The REF+ and REF- pins serve as reference inputs for the ADC; tying them directly to the sensor excitation source minimizes offset errors caused by lead resistance. A 1% tolerance, low-drift resistor network should connect these pins to ensure stability over temperature. Decoupling capacitors (100 nF ceramic in parallel with 10 µF tantalum) must be placed within 5 mm of the VDD pin to suppress high-frequency transients. Avoid routing any switching signals near the analog input paths to prevent capacitive crosstalk, which could degrade resolution in precision applications.
Can multiple ZSC31015EIG1-T devices share the same one-wire bus, and what precautions are necessary to prevent communication conflicts?
Multiple ZSC31015EIG1-T units can coexist on a single ZACwire™ bus provided each has a unique address programmed during manufacturing or factory calibration. The one-wire protocol supports up to 64 devices per bus segment under normal conditions, though practical limits depend on total bus capacitance and pull-up strength. Excessive capacitance (>200 pF) can slow rise times and cause bit errors. Each device must have sufficient isolation from others’ excitation sources to prevent cross-talk. Pull-up resistors should be sized conservatively—typically 4.7 kΩ for 5V systems or 10 kΩ for 3.3V—and placed close to the master controller. Bus termination and series damping resistors may be added in noisy environments to improve signal fidelity at higher data rates.
What environmental factors most significantly affect the accuracy and drift of the ZSC31015EIG1-T over time, and how can they be mitigated?
Temperature variation is the dominant factor influencing measurement drift, as the internal reference voltage exhibits approximately 5 ppm/°C. Thermal gradients between the sensor and the IC package also introduce errors if not properly managed. Mechanical stress from PCB warpage or vibration can displace solder joints or alter contact resistances in the sensor interface. Humidity may accelerate corrosion at connector points, increasing contact resistance unpredictably. Mitigation strategies include using matched thermal coefficients for all passive components, mounting the assembly on a thermally stable substrate, and applying conformal coating in humid climates. Calibration routines performed at system startup or periodically during idle periods can compensate for residual drift, especially in applications requiring sub-percent accuracy over wide operating ranges.
How does the 8-SOIC packaging of the ZSC31015EIG1-T influence thermal performance compared to larger packages like TSSOP or QFN, and what are the implications for high-temperature operation?
The 8-SOIC (0.154", 3.90mm width) package offers moderate thermal conductivity due to limited exposed pad area and minimal copper attachment compared to QFN variants. As a result, junction-to-ambient thermal resistance is typically around 120°C/W under natural convection. In contrast, QFN packages often achieve values below 40°C/W due to enhanced heat spreading. For continuous operation above 70°C ambient, SOIC encapsulation may require derating of output current or adding airflow to maintain safe junction temperatures. However, in most resistive sensor applications where power dissipation is low (<10 mW), this limitation is negligible. Designers should still verify thermal profiles during worst-case scenarios involving prolonged conversion cycles or high-impedance sensor inputs that increase bias current slightly.
What are the key differences between the ZSC31015EIG1-T and the ZSC31015EIG2-T in terms of configuration flexibility and application suitability?
The ZSC31015EIG2-T is functionally identical to the EIG1-T but includes extended diagnostic capabilities and tighter voltage regulation specifications, making it preferable in mission-critical systems requiring higher MTBF or regulatory compliance. Both share the same core architecture, supply range, and ZACwire™ implementation, so firmware compatibility is maintained across variants. The primary distinction lies in test coverage and quality assurance processes rather than electrical behavior. For instance, the EIG2-T may undergo accelerated life testing and stricter parametric screening, resulting in lower failure rates under thermal cycling or humidity exposure. Unless the application demands enhanced reliability metrics documented in qualification reports, the standard EIG1-T remains cost-effective for commercial-grade deployments.
Is reverse polarity protection feasible with the ZSC31015EIG1-T, and what circuit modifications would be required to implement it safely?
Native reverse polarity protection is not integrated into the ZSC31015EIG1-T, as its internal ESD diodes only clamp negative transients relative to VDD. Applying -30V directly to VDD risks damaging the device. To enable safe operation under reversed supply conditions, an external Schottky diode can be placed in series with the positive rail, dropping approximately 0.3V forward voltage. Alternatively, a P-channel MOSFET-based ideal diode circuit provides lower loss and better efficiency. Such protection must not interfere with the internal power-on reset circuitry, which requires clean ramp-up of VDD. Always verify that the chosen protection scheme does not exceed the absolute maximum ratings during transient events, and consider adding bulk capacitance post-diode to stabilize startup waveforms.
How does the ZSC31015EIG1-T interact with external filters, and what are the optimal choices for anti-aliasing and noise suppression in dynamic sensing applications?
The ZSC31015EIG1-T features a programmable digital filter that can decimate raw ADC samples to balance speed against noise rejection. For analog front-end filtering, a second-order RC low-pass filter with cutoff frequency set just above the signal bandwidth (e.g., 10 Hz for slow-changing pressure sensors) effectively suppresses high-frequency interference before digitization. Capacitor values should be 10x–100x the input capacitance of the IC to avoid loading effects. Ferrite beads can further isolate digital noise from the analog path, though they introduce phase lag that may affect settling time. Ensure all filter components exhibit low temperature drift and low leakage current to preserve measurement accuracy. Oversampling by a factor of 4–8 improves effective resolution without increasing hardware complexity, leveraging the device’s internal averaging capability.
Can the ZSC31015EIG1-T replace discrete instrumentation amplifier solutions in bridge transducer applications, and what trade-offs exist?
Yes, the ZSC31015EIG1-T eliminates the need for discrete INA chips by integrating gain setting, offset trimming, and ADC functions in a single chip. This reduces board real estate, component count, and potential mismatch errors between external resistors. However, discrete INAs offer greater flexibility in gain programming, wider bandwidth, and superior CMRR in ultra-high-precision scenarios. The ZSC31015EIG1-T trades some configurability for integration benefits, supporting fixed gains of 50x, 100x, or 200x with 16-bit effective resolution after filtering. It also simplifies calibration through on-chip registers accessible via ZACwire™. For most industrial weighing, force, or torque sensing, this integrated approach delivers sufficient accuracy at a lower BOM cost.
What are the implications of using the ZSC31015EIG1-T in intrinsically safe (IS) environments, and what certifications or design constraints apply?
The ZSC31015EIG1-T itself is not certified for intrinsic safety, but it can be deployed in IS zones when paired with appropriate barriers or galvanic isolation components. Since the device draws relatively low current (<1.5 mA), it poses minimal ignition risk in hazardous areas. Designers must ensure that all associated circuitry, including pull-up resistors and connectors, complies with local safety standards such as ATEX or IECEx. Energy-limiting resistors may be required upstream to restrict fault currents below safe thresholds. Additionally, optical isolators should separate control signals from potentially explosive fields. Always consult with certification bodies early in development to validate overall system compliance, as the ZSC31015EIG1-T alone does not confer any safety agency approval.
How does the Moisture Sensitivity Level (MSL) rating of 3 for the ZSC31015EIG1-T affect storage and assembly scheduling, and what precautions should be taken during reflow soldering?
With an MSL3 rating indicating sensitivity to moisture-induced damage after 168 hours of exposure, the ZSC31015EIG1-T must be stored in dry conditions (below 60% RH) prior to use. If absorbed moisture exceeds safe limits, popcorning during reflow can fracture internal bonds or delaminate layers. To mitigate risk, bake the components at 125°C for 24 hours before processing, or monitor shelf life using desiccant-controlled packaging. During reflow, peak temperature must stay within JEDEC J-STD-020 guidelines (max 260°C for <60 sec), and multiple exposures should be minimized. Boards should undergo nitrogen purging during wave soldering if applicable, and inspection via X-ray is recommended for first articles to detect hidden defects introduced by moisture-related stresses.
What alternatives exist to the ZSC31015EIG1-T for one-wire resistive sensor interfacing, and when might another solution be preferable?
Competing devices include Texas Instruments’ TMP117 (digital temperature sensor with I²C) and Maxim Integrated’s DS2438 (one-wire fuel gauge IC), but neither supports general resistive bridges as flexibly as the ZSC31015EIG1-T. The DS2438 shares the one-wire philosophy but lacks adjustable gain and is tailored for battery monitoring. Other Renesas RBicLite™ family members like the ZSC31010 may offer similar functionality but with fewer channels or different pinouts. Alternatives become attractive when higher sampling rates, multi-sensor synchronization, or non-resistive modalities (e.g., capacitive, piezoelectric) are needed. The ZSC31015EIG1-T excels in simplicity, low pin count, and deterministic response, making it ideal for embedded sensing nodes where reliability and ease of debugging outweigh raw performance metrics.

Parts with Similar Specifications

The three parts on the right have similar specifications to IDT, Integrated Device Technology Inc ZSC31015EIG1-T

Product Attribute ZSC31015EIG1-T ZSC31015EIG1-R ZSC31015EEG1-T ZSC31015EEG1-R
Part Number ZSC31015EIG1-T ZSC31015EIG1-R ZSC31015EEG1-T ZSC31015EEG1-R
Manufacturer IDT, Integrated Device Technology Inc IDT, Integrated Device Technology Inc IDT, Integrated Device Technology Inc IDT, Integrated Device Technology Inc
Package Tube Tape & Reel (TR) Tube Tape & Reel (TR)
Supplier Device Package 8-SOIC 8-SOIC 8-SOIC 8-SOIC
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount
Applications Sensor Signal Conditioner - Resistive Sensor Signal Conditioner - Resistive Sensor Signal Conditioner - Resistive Sensor Signal Conditioner - Resistive
Package / Case 8-SOIC (0.154", 3.90mm Width) 8-SOIC (0.154", 3.90mm Width) 8-SOIC (0.154", 3.90mm Width) 8-SOIC (0.154", 3.90mm Width)
Voltage - Supply 2.7V ~ 30V 2.7V ~ 30V 2.7V ~ 30V 2.7V ~ 30V
Base Product Number ZSC31015 ZSC31015 ZSC31015 ZSC31015
Series RBicLite™ RBicLite™ RBicLite™ RBicdLite™
Interface ZACwire™ One-Wire Interface ZACwire™ One-Wire Interface ZACwire™ One-Wire Interface ZACwire™ One-Wire Interface

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Customer Reviews

Evaluation: 10 Articles

  • Dani***alkerTech
    Jun 1, 2026

    Product works, but setup took more effort than expected. Once configured the MCU ran reliably, although documentation support felt older compared with newer platforms. Fine for maintenance projects.

  • Yuki***aka88
    May 26, 2026

    信号通信プロジェクトでこのRS-485トランシーバーを使用しました。設置は簡単で、長距離ケーブルでも通信は安定していました。消費電力も、以前使用していたものより低くなっています。

  • Stev***aker
    May 20, 2026

    Solid diode for power rectification. Works well in switching circuits.

  • Bran***Lewis
    May 11, 2026

    Compact FPGA with good performance. Suitable for basic signal processing tasks.

  • Oliv***arris
    May 7, 2026

    Reliable I/O expander. Works well in embedded control applications.

  • Jess***Jones
    Apr 17, 2026

    It offers good value for the price, and the specifications match the description. I’ve been using it for two days with no issues, and I’ll definitely buy it again if I need it in the future.

  • Mich***Smith
    Apr 17, 2026

    Shipping was on time, the component pins are neatly aligned, and I tested 10 of them with a multimeter—all readings were within the specified range. Highly recommended.

  • Aman***arris
    Apr 3, 2026

    It was great—the entire process, from placing the order to receiving the package, went very smoothly. The components were consistent, the price was fair, and I had a very pleasant shopping experience.

  • Mike***nch
    Apr 3, 2026

    Better than expected! The resistance and capacitance readings were spot-on, and it passed the test on the first try. The service was reliable, and the packaging was thoughtful—I highly recommend it.

  • Daic***K.
    Mar 23, 2026

    Very good. No issue after long time testing.

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ZSC31015EIG1-T Image

ZSC31015EIG1-T

IDT, Integrated Device Technology Inc
98D-ZSC31015EIG1-T

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