HX711 is a precision 24-bit analog to-digital converter (ADC) designed for weigh
scales and industrial control applications to
interface directly with a bridge sensor.
The input multiplexer selects either Channel A
or B differential input to the low-noise
programmable gain amplifier (PGA). Channel A
can be programmed with a gain of 128 or 64,
corresponding to a full-scale differential input
voltage of ±20mV or ±40mV respectively, when
a 5V supply is connected to AVDD analog power
supply pin. Channel B has a fixed 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. Clock input is
flexible. 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
There is no programming needed for the
internal registers. All controls to the HX711 are
through the pins.
Widely used in aerospace, mechanical, electrical, chemical, construction, medicine and many other fields, used to measure force, pressure, displacement, strain, torque, acceleration.