HX711 Dual-Channel 24 Bit Precision A/D weight Pressure Sensor

SKU: VM225

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Description

HX711 is a 24-bit analog to digital converter (ADC) IC. It as built-in a preamplifier that is used to amplify low voltage signals. HX711 chip takes voltage signals as an input and provides digital values.The preamplifier handles low voltages. It has an on-chip power supply regulator that provides analog power due to which you don’t need an external supply regulator. You can directly interface with a bridge sensor. This chip has two analog channels such as A and B. We can program channel ‘A’ gain either 128 or 64. On the other hand, channel B has constant gain of 32.

Technical Specification:

  • Model: HX711
  • Operating voltage (v): 7V to 5VDC
  • Current consumption: normal operation < 1.5mA
  • power down <1uA:
  • Operating Temperature (°C): -40 ~ +85
  • Data accuracy: 24 bit (24 bit A / D converter chip)
  • Refresh frequency: 10/80 Hz
  • Size:34.3mm*20mm*3mm(L*W*H)

Features:

  • Selectable 10SPS or 80SPS output data rate
  • On-chip oscillator requiring no external component with optional external crystal
  • On-chip power-on-reset
  • Two selectable differential input channels
  • On-chip active low noise PGA with a selectable gain of 32, 64 and 128.
  • Simple digital control and serial interface: pin-driven controls, no programming needed
  • Simultaneous 50 and 60Hz supply rejection

Applications:

  • Strain gauge
  • Hydraulic
  • Pneumatic
  • Widely used in aerospace, mechanical, electrical, chemical, construction, medicine
  • Industrial process control
  • Automatic Doors
  • Smart elevators

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