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Product Detailed Parameters
- Description：SIGNAL CONDITIONING CHIP
- Series：-
- Mfr：NOVOSENSE
- Package：Tape & Reel (TR),Cut Tape (CT)
- Applications：Industrial
- Pressure Type：-
- Operating Pressure：-
- Output Type：-
- Output：0 V ~ 5 V, 4 ~ 20 mA
- Accuracy：±0.5%
- Voltage - Supply：3V ~ 5.5V
- Port Size：-
- Port Style：No Port
- Features：Temperature Compensated
- Termination Style：SMD (SMT) Tab
- Maximum Pressure：-
- Operating Temperature：-40°C ~ 150°C
- Mounting Type：Surface Mount
- Package / Case：20-WFQFN Exposed Pad
- Supplier Device Package：20-DFN (4x4)
- Grade：-
- Qualification：-
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Overview
The NSA2860X-QQNR is a high-integration signal conditioning chip designed for resistive or voltage-type sensors, including pressure sensors and RTDs. It operates within a supply voltage range of 3V to 5.5V and supports an operating temperature range of -40°C to +150°C. The device features a 20-WFQFN exposed pad package (4x4mm). Key electrical specifications include ±0.5% accuracy, output options of 0V~5V and 4~20mA, and support for I2C and SPI digital interfaces.
Feature Summary
- Integrates a 24-bit ADC for main signal measurement and a separate 24-bit ADC for temperature measurement.
- Includes a built-in MCU with universal sensor calibration logic supporting up to third-order non-linear calibration.
- Features a high-precision variable gain instrumentation amplifier with gains ranging from 1X to 256X.
- Contains on-chip EEPROM for storing calibration coefficients and supports multiple output modes including PWM/PDM.
Applications
- Pressure sensor modules
- RTD temperature transmitters
- Thermocouple temperature transmitters
- Industrial process control systems
Procurement Notes
Verify the specific suffix 'QQNR' corresponds to the QFN-20 package and automotive-grade temperature rating when sourcing. Confirm that the ordering part number matches the exact datasheet revision required for your design. Ensure compatibility with the specified 3V-5.5V supply range and interface protocols during component selection.
Selection Notes
Select this component for applications requiring high integration and precise calibration of resistive sensors. It is suitable where space constraints favor the compact QFN-20 package. Consider its capability for direct sensor connection and internal temperature compensation. Evaluate the need for its specific output formats against system requirements.
Part Context
This part belongs to the Novosense NSA2860 series of sensor signal conditioning chips. It is designed to replace discrete solutions by integrating amplification, ADC, and calibration logic. The series targets industrial and automotive sensor transmitter applications, offering a complete solution for signal processing and transmission.
Replacement Considerations
Check for pin-compatible alternatives within the same manufacturer's portfolio if package availability is an issue. Verify functional equivalence regarding calibration algorithms and interface protocols before substitution.
FAQ
What types of sensors does the NSA2860X-QQNR support?
It supports resistive or voltage-type sensors such as piezoresistive pressure sensors, thermocouples, and RTDs.
Does the chip include internal temperature compensation?
Yes, it features on-chip temperature compensation and a built-in temperature sensor for accurate readings.
