Highly Configurable 8 Channel ±25 V Universal Input Low Power Analog Front-End

NAFEx1388 全新

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NAFE11388 / NAFE71388 Analog Front-End

NAFE11388 Block Diagram

Features

Eight Configurable HV Inputs

  • Single-ended or differential, with ranges up to ±25 V
  • Independent configurations for voltage and current ranges
  • Overvoltage protected up to ±36 V for less than one hour

Fast Data Rates

  • NAFE11388: 7.5 SPS to 288 kSPS
  • NAFE71388: 15 SPS to 576 kSPS
  • Simultaneous 50 Hz/60 Hz line rejection
  • ENOB:
    • NAFE11388: 17-bit at 72 kSPS / 24-bit at 30 SPS
    • NAFE71388: 17-bit at 144 kSPS / 24-bit at 50 SPS

High Accuracy

  • 0.005 % FS accuracy at room after user calibration
  • 0.1 % FS accuracy over -25 ⁰C to 105 ⁰C

System Calibration

  • End-to-end calibration with integrated precise voltage sources
  • Accurate factory-calibrated products available

Key Features

  • ±3 ⁰C internal temperature sensor
  • 0.2% internal oscillator accuracy at room temperature
  • Diagnostic system for faults detection and prediction
  • CRC error detection
  • Ten GPIOs
  • 32 MHz SPI interface
  • Robust 8 kV HBM ESD and IEC61000-4-5 2 kV surge protection
  • Power supply: HV: ±7 V to ±24 V, LV: 3.3 V
  • Power Consumption: 125 mW for low power version and 135mW for the high speed
  • Operating temperature range TA: -40 ⁰C to +125 ⁰C
  • Package: 64 pin, 9 mm x 9 mm x 0.85 mm HVQFN

Product Longevity Program

  • These products are included in the NXP Product Longevity program ensuring a stable supply of products for 15 years for your embedded designs.

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