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Renesas ZSSC3138BE2R
- Part No.:
- ZSSC3138BE2R
- Manufacturer:
- Renesas
- Category:
- Specialized
- Package:
- -
- Datasheet:
-
ZSSC3138BE2R.pdf
- Description:
- IC INTFACE SPECIALIZED SGNL COND
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Product details
Overview
ZSSC3138BE2R from Integrated Device Technology (IDT) is a CMOS sensor signal conditioner IC designed for ceramic thick-film and strain gauge bridge sensors in automotive/industrial applications. It provides programmable gain up to 420, dual-stage offset compensation (including extended analog zero compensation), 16-bit ADC resolution, and ratiometric analog voltage output or ZACwire™ digital interface. It enables laser-trimming-free sensor modules with 0.25% FSO accuracy over –25°C to +85°C.
For engineers reviewing the ZSSC3138BE2R datasheet, ZSSC3138BE2R pinout, ZSSC3138BE2R application, or ZSSC3138BE2R equivalent, key selection criteria include its SSOP14 package, –40°C to +150°C extended temperature rating, 7.8 kHz max sample rate in 2-step ADC mode, internal temperature sensing, and AEC-Q100 qualification for harsh environments.
Technical Context
The ZSSC3138BE2R integrates a 16-bit RISC calibration microcontroller that executes sensor-specific correction algorithms for offset, sensitivity, temperature drift, and non-linearity using on-chip EEPROM-stored coefficients. Its analog front-end features a three-stage programmable gain amplifier (PGA) with gain settings from 2.8 to 420 and supports extended analog zero compensation (XZC) up to ±300% of signal span.
Dual measurement modes-1-step and 2-step ADC conversion-enable trade-offs between noise immunity and bandwidth: 2-step mode delivers 7.8 kHz bandwidth but reduced integration time, while 1-step mode achieves 200 Hz bandwidth with higher noise rejection. Output is configurable as ratiometric analog voltage (12.4-bit effective resolution, 5–95% VDDE range) or ZACwire™ one-wire digital interface.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 4.5–5.5 V DC - compatible with standard 5 V industrial and automotive power rails |
| Operating Temperature | –40°C to +150°C - qualified for under-hood automotive and high-temp industrial use |
| Analog Gain Range | 2.8 to 420 - supports low-output ceramic sensors without external amplification |
| ADC Resolution | 13–16 bit - selectable via configuration; 16-bit with range zooming for high-precision conditioning |
| Max Sample Rate | 7.8 kHz - achievable in 2-step ADC mode for dynamic pressure or force sensing |
| Output Options | Ratiometric analog voltage (12.4-bit effective) or ZACwire™ one-wire digital - enables flexible system-level interface design |
| Accuracy (FSO) | 0.25% @ –25°C to +85°C - meets stringent automotive sensor linearity requirements |
| Protection Features | 33 V absolute max rating, reverse polarity & short-circuit protection - eliminates need for external protection circuitry |
Pinout & Package
Package: RoHS-compliant JEDEC-standard SSOP14 (5.0 mm × 6.2 mm, 0.635 mm pitch), rated for –40°C to +150°C operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDA | Analog supply input | Provides clean 4.5–5.5 V power to analog front-end; decoupling required per datasheet |
| VSSA | Analog ground reference | Separate analog ground plane required to maintain 16-bit ADC performance |
| SDA | I²C data line | Open-drain bidirectional interface for configuration, calibration, and readout (400 kHz max) |
| SCL | I²C clock line | Master-generated clock for I²C communication; internal pull-up available (25–100 kΩ) |
| VDD | Digital supply input | Shared with VDDA in most designs; may be isolated for noise-sensitive applications |
| VDDE | External supply reference | Defines full-scale output range for ratiometric analog output (AOUT = 5–95% × VDDE) |
| VBR_T / VBR_B | Sensor bridge top/bottom inputs | Differential inputs for resistive bridge sensors; support common-mode range up to 0.65 × VDDA |
| VBP / VBN | Sensor bias outputs | Provide regulated bias voltage to bridge sensor; enable 4-wire Kelvin sensing |
| AOUT | Analog output | Ratiometric voltage output (0.05–0.95 × VDDE); 2.5 mA drive capability into ≥2 kΩ load |
| VSSE | Output ground reference | Separate output ground improves noise immunity for analog output path |
| n.c. | No-connect | Pins 5 and 9 are unconnected; must remain floating per datasheet |
| GND | Power ground | Primary ground return for digital logic and internal oscillator; tied to VSSA in typical layout |
Key Features
| Feature | Design Value |
|---|---|
| One-pass end-of-line calibration | Reduces production test time by eliminating iterative trimming; stores coefficients in on-chip EEPROM |
| Extended analog zero compensation (XZC) | Compensates sensor offsets up to ±300% of signal span, enabling use with high-offset ceramic elements |
| Internal temperature sensor | On-die pn-junction diode enables real-time thermal compensation without external components |
| High-voltage protection | Withstands ±33 V transients on all pins - eliminates need for external TVS diodes in 12/24 V systems |
| AEC-Q100 Grade 0 qualification | Validated for automotive under-hood applications up to +150°C ambient, including ESD and EMC robustness |
| ZACwire™ one-wire interface | Enables daisy-chainable digital readout over single wire, reducing wiring complexity in multi-sensor systems |
Applications
| Automotive Engine Pressure Sensing | Industrial Ceramic Load Cell Interface |
|---|---|
Use Scenario: Monitoring intake manifold absolute pressure (MAP) or turbo boost pressure in gasoline/diesel engines. IC Role / Device Role / Timing Role: Signal conditioner digitizing and compensating ceramic piezoresistive pressure sensor output in real time. Use Value: Achieves 0.25% FSO accuracy across –40°C to +150°C without laser trimming, meeting ASAM MCD-2 MC requirements for engine control units. |
Use Scenario: High-reliability weight measurement in factory automation scales using thick-film ceramic strain gauges. IC Role / Device Role / Timing Role: Front-end conditioner performing offset/gain/temperature/nonlinearity correction before analog-to-digital conversion. Use Value: Eliminates external trimming resistors and temperature sensors, reducing BOM count by ≥4 components per channel. |
| Off-Highway Hydraulic Pressure Monitoring | Medical Disposable Pressure Transducer |
Use Scenario: Real-time hydraulic pressure feedback in construction equipment (e.g., excavator boom control). IC Role / Device Role / Timing Role: Robust signal conditioner interfacing with high-impedance ceramic bridge sensors in EMI-heavy environments. Use Value: Built-in 33 V transient protection and AEC-Q100 qualification ensure reliable operation in ISO 13766-compliant machinery. |
Use Scenario: Single-use blood pressure or respiratory pressure sensors requiring stable calibration over shelf life. IC Role / Device Role / Timing Role: Calibration microcontroller executing sensor-specific correction algorithm stored in EEPROM. Use Value: One-pass calibration at manufacturing enables traceable, long-term stability (15-year data retention per JEDEC JESD22-A117). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar sensor signal conditioning applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Melexis MLX90363 | Triaxis Hall-based ASIC; no bridge input support; integrated Hall sensor instead of external bridge interface | Designed for rotary position sensing, not resistive bridge signal conditioning | Select only for magnetic field sensing; incompatible with ceramic strain gauge or pressure bridge sensors |
| TE Connectivity MS5837-02BA | Integrated pressure sensor + ADC + I²C interface; no programmable gain, no XZC, no EEPROM-based correction algorithm | Fixed-function digital pressure sensor module; lacks reconfigurable signal conditioning for custom bridges | Choose when a calibrated, pre-tested pressure transducer is needed-not for custom bridge sensor signal conditioning |
Compared with MLX90363 and MS5837-02BA, the ZSSC3138BE2R uniquely combines programmable bridge interface, dual-stage offset compensation, on-chip correction algorithm execution, and AEC-Q100 qualification-making it the only option among the three capable of replacing laser-trimmed analog signal chains in ceramic sensor applications.
Availability
ZSSC3138BE2R is available at Aetrix Electronics and suitable for automotive engine control, industrial weighing systems, off-highway hydraulics, and medical disposable pressure monitoring requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for ZSSC3138BE2R 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 ZSSC313x product line was developed specifically to replace analog trimming networks in high-accuracy bridge sensor applications, targeting cost-sensitive yet reliability-critical automotive and industrial systems requiring AEC-Q100 compliance and long-term calibration stability.
FAQ
What is the maximum operating temperature supported by the ZSSC3138BE2R?
The ZSSC3138BE2R is specified for continuous operation from –40°C to +150°C ambient, validated per AEC-Q100 Grade 0 requirements. This extended temperature range enables direct mounting in under-hood automotive locations and high-heat industrial environments where ceramic sensors are commonly deployed.
Does the ZSSC3138BE2R require external calibration components?
No. The ZSSC3138BE2R performs one-pass end-of-line calibration via I²C or ZACwire™, storing all sensor-specific coefficients-including offset, sensitivity, temperature drift, and nonlinearity-in on-chip EEPROM. No external resistors, trim pots, or temperature sensors are required for full compensation.
Can the ZSSC3138BE2R interface with both 3.3 V and 5 V microcontrollers?
Yes. While the ZSSC3138BE2R requires a 4.5–5.5 V supply (VDDE/VDDA), its I²C interface operates with level-tolerant inputs (VI²C,HIGH ≥ 0.8×VDDA) and open-drain outputs, allowing safe connection to 3.3 V controllers using appropriate pull-ups. ZACwire™ also supports mixed-voltage systems via configurable timing windows.
How does the extended analog zero compensation (XZC) function in the ZSSC3138BE2R?
XZC in the ZSSC3138BE2R adds programmable analog offset correction at the second PGA stage, supporting shifts up to ±300% of the sensor signal span. This prevents saturation when ceramic sensors exhibit large inherent offsets-enabling accurate conditioning without external nulling circuitry or laser trimming.
Is the ZSSC3138BE2R pin-compatible with other members of the ZSSC313x family?
Yes. All ZSSC313x variants-including ZSSC3135, ZSSC3136, and ZSSC3138-share identical SSOP14 pinouts and register maps. The ZSSC3138BE2R differs only in factory-programmed calibration parameters and temperature grade; hardware and firmware are fully interchangeable within the family.
ZSSC3138BE2R Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- *
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- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
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- Voltage - Supply:
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ZSSC3138BE2R FAQ
1.How can I place an order for ZSSC3138BE2R through Aetrix?
Please submit a Request for Quotation (RFQ) for ZSSC3138BE2R 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 ZSSC3138BE2R reliable?
The price and inventory of ZSSC3138BE2R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ZSSC3138BE2R is usually 5 days.
3.What payment methods are accepted for ZSSC3138BE2R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ZSSC3138BE2R transactions.
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4.How is shipping managed for ZSSC3138BE2R?
ZSSC3138BE2R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ZSSC3138BE2R 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 ZSSC3138BE2R?
For technical support, including ZSSC3138BE2R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ZSSC3138BE2R requirements.
6.How does Aetrix verify that ZSSC3138BE2R is sourced from the original manufacturer or authorized distributors?
All ZSSC3138BE2R 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 ZSSC3138BE2R meets industry standards.
7.What is the process for return or replacement of ZSSC3138BE2R?
All ZSSC3138BE2R units undergo pre-shipment inspection (PSI). If there is an issue with ZSSC3138BE2R, 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 ZSSC3138BE2R part is unused and in its original packaging.
Return procedure for ZSSC3138BE2R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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