To measure weight using load cell we usually need regulated power source output amplifier noise reduced adc converter.
Load cell adc ic.
So we can use hx711 ic which has all the above features simply removing complex circuitry.
It interface with simple digital i o to any controller.
All three features need three separate circuits and components adding to cost and complexity.
The ads1231 is a precision 24 bit analog to digital converter adc.
How to use hx711.
Consequently it will make your design cost effective.
Hx711 soic16 24 bit adc ic for load cell.
Working principle of the circuit is very simple.
Rs 578 00 433 mhz frequency around 100 meters range built in telescopic antenna keypad slide type protection cover ev1527 chip based protocol.
The load cell can be directly interfaced to this adc.
It consists of an ad7799 adc controlled by an aduc847 microcontroller.
Therefore this adc chip eliminates the need for external power regulator.
Also you can observe from the circuit diagram that we power the load cell from the hx711 chip.
Load cell 40 kg.
With an onboard low noise amplifier onboard oscillator precision third order 24 bit delta sigma modulator and bridge power switch the ads1231 provides a complete front end solution for bridge sensor applications including weigh scales strain gauges and load cells.
Figure 5 is a block diagram of a reference design a weigh scale system evaluation board designed at analog devices.