HX711 Weighing Sensor Module

SKU: SEP-001
  • 24-bit ADC conversion resolution
  • Low power consumption for battery-powered devices
  • Specifically designed for strain gauge and weight sensors
  • Built-in amplifier with adjustable gain (128, 64, 32)
  • Serial communication interface for easy microcontroller integratio

5,005,50

The HX711 is a high-precision, 24-bit analog-to-digital converter (ADC) specifically designed for load cell and weight scale applications. It features low noise, high resolution, and a simple interface for microcontrollers. The chip includes an internal low-noise programmable amplifier with selectable gains of 64x or 128x, making it suitable for bridge-type sensors like load cells. It operates with minimal external components, supports two differential input channels, and has a built-in clock oscillator. The HX711 simplifies the design of precision weight measurement systems with its stable performance and ease of integration.

Feature

  • Two selectable differential input channels.
  • On-chip active low-noise PGA with selectable gain of 32, 64, or 128.
  • On-chip power supply regulator for load-cell and ADC analog power supply.
  • Built-in oscillator requiring no external components (optional external crystal support).
  • On-chip power-on-reset for improved stability.
  • Simple digital control and serial interface with pin-driven controls, no programming required.
  • Selectable output data rate: 10 SPS or 80 SPS.
  • Simultaneous 50 Hz and 60 Hz supply rejection for noise immunity.
  • Low power consumption: < 1.5 mA during normal operation, < 1 μA in power-down mode.
  • Wide operating voltage range: 2.6 V to 5.5 V.
  • Operating temperature range: -20°C to +85°C.

Applications

  • Electronic scales
  • Sensor data acquisition
  • Precision measurement instruments

 

Specification

Operating Voltage DC 5V or 3.3V (recommended voltage: 5V)
Maximum Range 5 kg/10kG
Appearance Height 20 cm (including the pillar)
Total Weight 90.6 g (including upper and lower casing)
AD Module HX711 (24-bit AD conversion, professional pressure AD chip)
Calibrated Accuracy Within 1 g
Output Signal Digital signal (pressure sensor analog voltage signal is amplified and converted via the AD module)
Signal Output Bus Occupies 2 general-purpose IO pins (similar to I2C communication), data is read through AD acquisition

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