HX711 Load cell amplifier

90.00 incl. GST

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Description

HX711 Load cell amplifier is a fineness 24-bit digitizer (ADC) designed for weighing scales and industrial control applications to interface directly with a bridge sensing element.

The channel A or B is neither chose using the input mux by a low-noise programmable gain amplifier(PGA).

Channel can be programmed with a gain of 128 or 64, corresponding to a full-scale differential input voltage of ±20mV or ±40mV respectively, severally once a 5V signal is connected to the AVDD analog power supply pin.

Channel B encompasses a constant gain of 32. On-chip power supply regulator eliminates the need for an external supply regulator to provide analog power for the ADC and the sensor.

The clock input is versatile. It can be from an external clock source, a crystal, or the on-chip oscillator that does not require any external component. On-chip power-on-reset circuitry simplifies digital interface initialization.

There is no programming needed for the internal registers. All controls to the HX711 are through the pins.

HX711 Load cell amplifier allows you to integrate the load cell to your need in the project. This eliminates the need for an extra amplifier or dual power supply board and easy to connect with any microcontroller to detect the weight.  The HX711 uses a two-wire interface (Clock and Data) for communication.

Advantage:

  • High integration
  • fast response
  • Immunity
  • Great performance
  • Reliability
  • Low cost

Specifications:

  • Data accuracy: 24 bit (24 bit A / D converter chip.)
  • Differential input voltage: ±40mV (Full-scale differential input voltage is ± 40mV)
  • Refresh frequency: 10/80 Hz
  • Operating Voltage: 2.7V to 5VDC
  • Operating current: <10 mA

Datasheet:

HX711 Datasheet


 

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