SD3102F2

Current

DC: 19.999μA/199.99μA/1.9999mA/19.999mA/199.99mA/1.9999A/19.99A
AC: 1.9999mA/19.999mA/199.99mA/1.9999A/19.99A

DC: 19.999μA/199.99μA/1.9999mA/19.999mA/199.99mA/1.9999A/19.99A
AC: 1.9999mA/19.999mA/199.99mA/1.9999A/19.99A

Voltage

DC :199.99mV/1.9999V/19.999V/199.99V/1010.0V
AC :199.99mV/1.9999V/19.999V/199.99V/760.0V

DC :199.99mV/1.9999V/19.999V/199.99V/1010.0V
AC :199.99mV/1.9999V/19.999V/199.99V/760.0V

Counts

29999

29999

Precision

0.5%

0.5%

Alarm

/

/
IC Introduction

        SD3102F2 has a built-in high precision low-noise analog-to-digital converter (ΣΔ-ADC) that can measure up to 99,999 counts stable readings.
        With the built-in digital signal processor (DSP),
SD3102F2 can achieve 400Hz bandwidth true RMS measurement without any external rectification components. The overall accuracy is better than class 0.5.
        Built-in function menu allows for advanced features such as modifying measurement range, changing AC/DC measurement modes, setting display range, modifying filter coefficients, and calibration.
        Built-in amplifier supports up to 16x gain setting, thus reducing the current sampling resistor power dissipation in high-current detection application. It supports zero trimming, which can effectively filter out signal interference.
        Built-in self-test and calibration algorithm simplifies the calibration process. Calibration value is stored inside the chip with 100mV as the default value. User can adjust this value through menu or potentiometer.
        Production tool is provided to automate menu parameters configuration, thus saving operation time at production.

IC Features
  • Maximum display: -19999~29999

  • Conversion rate: 0.8~8Hz

  • Range: fixed range (support user setting)

  • Operating voltage: 2.5~3.6V

  • AC rectification: built-in true RMS processor

  • Display: common cathode LED digital display

  • Temperature drift performance: 40ppm/℃ (supports external reference input)

  • Measurement type: AC/DC voltage, AC/DC current

  • Other types: support transformer, current shunt

  • Other functions: filter settings, upper and lower limits, etc.

  • Zero adjustment: support zero clearing

  • Supports common ground for signal and power

  • Supports key menu programming

  • Calibration mode: support digital calibration (default 100mV calibration), potentiometer trimming, and menu trimming

IC Block Diagram
Application area
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