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Renesas ZSSC3138BE1B
- Part No.:
- ZSSC3138BE1B
- Manufacturer:
- Renesas
- Category:
- Sensor and Detector Interfaces
- Package:
- -
- Datasheet:
-
ZSSC3138BE1B.pdf
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- WAFER (UNSAWN) - BOX
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Product details
Overview
ZSSC3138BE1B from Integrated Device Technology (IDT) is a CMOS sensor signal conditioner IC designed for ceramic thick-film and strain gauge bridge sensors in automotive and industrial applications. It provides 16-bit RISC-based digital compensation of offset, sensitivity, temperature drift, and non-linearity; supports analog gain up to 420; delivers 0.25% FSO accuracy over −25°C to +85°C; and features ratiometric analog voltage output or ZACwire™ one-wire digital interface.
For engineers reviewing the ZSSC3138BE1B datasheet, ZSSC3138BE1B pinout, ZSSC3138BE1B application, or ZSSC3138BE1B equivalent, key selection criteria include its −40°C to +150°C extended temperature range, JEDEC-SSOP14 package, dual offset compensation (analog XZC + digital), 7.8 kHz max bandwidth in 2-step ADC mode, and AEC-Q100 qualification for harsh environments.
Technical Context
The ZSSC3138BE1B integrates a three-stage programmable gain amplifier (PGA), full-differential switched-capacitor ADC (13–16 bit), on-chip temperature diode, and calibration microcontroller (CMC) executing ROM-stored correction algorithms. Its analog front-end supports differential bridge inputs with common-mode range of 29–65% VDDA and programmable gain from 2.8 to 420.
Digital conditioning uses EEPROM-stored coefficients from one-pass calibration to correct sensor non-idealities. Output options include ratiometric analog voltage (5–95% VDDE, 12.4-bit effective resolution) or ZACwire™ serial interface - both configurable via I²C™ or ZACwire™ during programming.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 4.5 V to 5.5 V - enables direct connection to standard 5 V automotive/industrial rails without external regulation. |
| Operating Temperature | −40°C to +150°C - qualified for under-hood automotive and high-temp industrial sensor modules. |
| Analog Gain Range | 2.8 to 420 - supports low-output ceramic sensors (e.g., 1–275 mV/V span) without external amplification. |
| ADC Resolution | 13–16 bit - selectable resolution enables trade-off between noise immunity (16-bit) and response time (13-bit @ 7.8 kHz). |
| Accuracy (FSO) | 0.25% @ −25°C to +85°C - guaranteed total error including INL, gain, offset, and thermal drift - no laser trimming required. |
| Output Interface | Ratiometric analog voltage (5–95% VDDE) or ZACwire™ one-wire - simplifies system integration with or without microcontroller host. |
| Protection Features | 33 V absolute max rating, reverse polarity protection, short-circuit current limiting (±25 mA), and sensor open/short detection - eliminates need for external protection circuitry. |
Pinout & Package
Package: RoHS-compliant JEDEC-SSOP14 (5.3 mm × 6.2 mm, 0.635 mm pitch), rated for −40°C to +150°C operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDA / VSSA | Analog supply / ground | Separate analog domain power pins minimize noise coupling into precision AFE path. |
| VDD / VSSE | Digital supply / ground | Digital domain isolated from analog ground to prevent switching noise contamination of sensor measurements. |
| VBR_T / VBR_B | Sensor bridge top/bottom terminals | Differential inputs accepting resistive bridge signals; support symmetric biasing and auto-zero measurement phases. |
| VBP / VBN | Sensor bridge positive/negative sense | High-impedance inputs for precise differential sensing; enable parasitic offset current cancellation (≤10 nA). |
| AOUT | Analog output | Ratiometric voltage output (0.05–0.95 VDDE) with 12-bit DAC, 0.1 V/µs slew rate, and 2.5 mA drive capability. |
| SDA / SCL | I²C™ interface | Two-wire serial interface for configuration, calibration data loading, and real-time register access (400 kHz max). |
| OUT | ZACwire™ output | Open-drain one-wire interface supporting bidirectional communication using single wire and pull-up resistor. |
| VDDE | Main supply input | Primary 4.5–5.5 V power rail; powers internal regulators and sets analog output reference scale. |
Key Features
| Feature | Design Value |
|---|---|
| One-pass end-of-line calibration | Eliminates manual trimming; stores all compensation coefficients in on-chip EEPROM with 100,000 write cycles at ≤85°C. |
| Dual offset compensation | Combines digital CMC correction with analog extended zero compensation (XZC) supporting ±300% signal-span offsets. |
| Integrated temperature sensing | On-chip pn-junction diode enables accurate thermal drift compensation without external sensor or routing. |
| Robust fault detection | Real-time sensor open-circuit (>100 kΩ), short-circuit (<50 Ω), and common-mode violation monitoring. |
| AEC-Q100 qualified | Grade 0 (−40°C to +150°C) qualification ensures reliability in automotive safety-critical pressure, level, and force sensing. |
Applications
| Automotive Engine Pressure Sensing | Industrial Hydraulic Load Monitoring |
|---|---|
Use Scenario: Measuring combustion chamber or turbocharger pressure in diesel engines using ceramic thick-film piezoresistive sensors. IC Role / Device Role / Timing Role: Signal conditioner performing real-time offset/temperature/non-linearity correction and delivering ratiometric analog output to ECU ADC. Use Value: Enables <0.25% FSO accuracy across −40°C to +150°C without laser trimming, reducing BOM cost and improving long-term stability vs. discrete solutions. |
Use Scenario: Monitoring hydraulic cylinder pressure in construction equipment using strain-gauge-based ceramic sensors exposed to vibration and thermal cycling. IC Role / Device Role / Timing Role: Front-end conditioner providing 7.8 kHz bandwidth output for closed-loop control feedback with integrated short/open diagnostics. Use Value: Delivers fail-safe operation via built-in sensor connection loss detection and reverse-polarity protection - eliminating field failures from wiring errors. |
| Medical Infusion Pump Force Feedback | Appliance Door Seal Integrity Detection |
Use Scenario: Detecting occlusion or tubing blockage in IV infusion pumps via force-sensing ceramic membranes. IC Role / Device Role / Timing Role: Precision conditioner generating calibrated analog output for microcontroller ADC sampling at ≥1 kHz update rate. Use Value: Achieves 12.4-bit effective analog output resolution and <3 mV RMS noise - enabling sub-psi pressure resolution critical for patient safety. |
Use Scenario: Verifying refrigerator or oven door seal compression using embedded ceramic strain sensors. IC Role / Device Role / Timing Role: Low-power signal conditioner operating from 5 V rail, providing ZACwire™ digital output for simple microcontroller polling. Use Value: Reduces system complexity with single-wire digital interface and eliminates need for external EEPROM or calibration fixtures during manufacturing. |
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, 24-bit ADC, but no integrated temperature sensor or XZC; requires external reference and trim components. | Lacks AEC-Q100 qualification and failsafe diagnostics; suited for lab-grade instrumentation, not automotive. | Choose MAX1452ACM+T only when ultra-high-resolution (24-bit) raw ADC data is required and external calibration infrastructure exists. |
| AD8555ARZ | Analog-only signal conditioner with programmable gain/offset; no digital correction, EEPROM, or microcontroller. | No digital compensation - limited to linear sensors; cannot correct non-linearity or thermal drift beyond analog range. | Select AD8555ARZ only for cost-sensitive, low-accuracy applications where sensor linearity and stability are inherently high. |
Compared with MAX1452ACM+T and AD8555ARZ, the ZSSC3138BE1B uniquely integrates digital correction, on-chip temperature sensing, and automotive-grade protection - enabling higher accuracy, lower system cost, and reduced design cycle time for ceramic bridge sensors.
Availability
ZSSC3138BE1B is available at Aetrix Electronics and suitable for automotive engine management, industrial hydraulic monitoring, and medical device pressure sensing requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for ZSSC3138BE1B 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 high-reliability applications.
The ZSSC313x product line was developed specifically for automotive and industrial resistive bridge sensors - emphasizing AEC-Q100 compliance, end-of-line calibration efficiency, and robustness in thermally aggressive environments.
FAQ
What is the maximum operating temperature range supported by the ZSSC3138BE1B?
The ZSSC3138BE1B is specified for continuous operation from −40°C to +150°C and is AEC-Q100 Grade 0 qualified. This extended range is confirmed in the datasheet's Operating Conditions table (Section 1.2.1, TAMB_TQE) and applies specifically to the BE1B variant with SSOP14 packaging and die-level testing per the ordering code definition.
Does the ZSSC3138BE1B require external components for basic operation?
The ZSSC3138BE1B requires only three external capacitors (C1, C2, C3 per Figure 3.1: 100 nF, 100 nF, 47 nF) for power supply decoupling and output filtering. No external trimming resistors, reference sources, or temperature sensors are needed - all calibration coefficients and compensation logic reside on-chip.
How does the ZSSC3138BE1B handle large sensor offset voltages?
The ZSSC3138BE1B implements dual-stage offset compensation: digital correction via its 16-bit RISC microcontroller and analog extended zero compensation (XZC) that shifts the second-stage amplifier's operating point. XZC supports up to ±300% of signal span depending on PGA gain - verified in Table 2.2 for the ZSSC3138BE1B's full gain range.
Can the ZSSC3138BE1B be calibrated without a host microcontroller?
Yes - the ZSSC3138BE1B supports PC-controlled one-pass calibration via USB-to-I²C adapter using IDT's Mass Calibration System (MCS) software. The ZSSC313xKITV1.1 evaluation kit includes hardware and firmware to perform full calibration without integrating into a target host system.
Is the ZSSC3138BE1B pin-compatible with other members of the ZSSC313x family?
Yes - all ZSSC313x variants (including ZSSC3138BE1B, ZSSC3138BA2, ZSSC3137) share identical SSOP14 pinout, register map, and interface protocol. Differences are limited to temperature grade, EEPROM calibration data, and factory-programmed configuration bits - enabling drop-in replacement within the same package variant.
ZSSC3138BE1B 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:
- -
ZSSC3138BE1B FAQ
1.How can I place an order for ZSSC3138BE1B through Aetrix?
Please submit a Request for Quotation (RFQ) for ZSSC3138BE1B 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 ZSSC3138BE1B reliable?
The price and inventory of ZSSC3138BE1B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ZSSC3138BE1B is usually 5 days.
3.What payment methods are accepted for ZSSC3138BE1B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ZSSC3138BE1B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ZSSC3138BE1B?
ZSSC3138BE1B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ZSSC3138BE1B 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 ZSSC3138BE1B?
For technical support, including ZSSC3138BE1B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ZSSC3138BE1B requirements.
6.How does Aetrix verify that ZSSC3138BE1B is sourced from the original manufacturer or authorized distributors?
All ZSSC3138BE1B 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 ZSSC3138BE1B meets industry standards.
7.What is the process for return or replacement of ZSSC3138BE1B?
All ZSSC3138BE1B units undergo pre-shipment inspection (PSI). If there is an issue with ZSSC3138BE1B, 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 ZSSC3138BE1B part is unused and in its original packaging.
Return procedure for ZSSC3138BE1B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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