Unclassified HX711 is a 24-Bit Analog-to-Digital Converter (ADC) for Weigh Scales. This article is going to explain the HX711 datasheet, pinout, applications, specifications, and other details about the HX711 converter.
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Dec 6, 2021
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HX711 with a Four Wire Load Cell and Arduino | Step by Step Guide
Unclassified
HX711 is a 24-Bit Analog-to-Digital Converter (ADC) for Weigh Scales. This article is going to explain the HX711 datasheet, pinout, applications, specifications, and other details about the HX711 converter.
HX711
HX711 is a precision 24-bit analog-to-digital converter (ADC) designed for weighing scales and industrial control applications to interface directly with a bridge sensor.
It's designed specifically for boosting cell signals and reporting them to another microcontroller.
Grove – ADC for Load Cell (HX711) is a 24-bit A/D converter specifically intended for load cells. It has a low-noise programmable amplifier on-chip with gain options of 32, 64, and 128.
The HX711 chip combines a regulated power supply, an on-chip clock oscillator, and various peripheral circuits for high integration, fast response, and good anti-interference performance.
With the Grove I2C connector and 4-pin screw terminal, it becomes quite easy to connect the load cell and microcontroller. no soldering is required. You can build your own Arduino weigh sensor system in just a few simple steps.
Avia Semicon (Xiamen) HX711 technical specifications, attributes, parameters and parts with similar specifications to Avia Semicon (Xiamen) HX711.
Avia Semicon (Xiamen) HX711 technical specifications, attributes, parameters and parts with similar specifications to Avia Semicon (Xiamen) HX711.
| Product Attribute | Attribute Value | |
|---|---|---|
| Package / Case | SOP-16_150mil | |
| Packaging | Tube-packed | |
| Voltage - Supply | 2.6V~5.5V |
| Product Attribute | Attribute Value | |
|---|---|---|
| Number of Bits | 24Bits | |
| Input Type | Differential | |
| Number of Inputs | 2Inputs |
| Product Attribute | Attribute Value | |
|---|---|---|
| Sampling Rate (Per Second) | 10,80 | |
| RoHS Status | RoHS Compliant |
Two selectable differential input channels
On-chip active low noise PGA with selectable gain of 32, 64 and 128
On-chip power supply regulator for load-cell and ADC analog power supply
On-chip oscillator requiring no external component with optional external crystal
On-chip power-on-reset
Simple digital control and serial interface: pin-driven controls, no programming needed
Selectable 10SPS or 80SPS output data rate
Simultaneous 50 and 60Hz supply rejection
Current consumption including on-chip analog power supply regulator: normal operation < 1.5mA, power down < 1uA
Operation supply voltage range: 2.6 ~ 5.5V
Operation temperature range: -40 ~ +85℃
16 pin SOP-16 package
Weigh Scales
Industrial Process Control
Micro weight meter
Kitchen Scale
HX711 PCB Schematic
A load cell is a device that measures the size of a load (either a force or a weight) and converts the force into a measured electrical output.
They serve a variety of functions, including determining the weight of an object, tracking weight changes over time, and measuring strain and load on a surface.
When a force is applied to a load cell, it transforms into a metal core with a set of electrical resistances. However, once the force is released, it reverts to its previous state. The reversibility of this substance determines the load cell's quality and accuracy.
Avia Semiconductor (Xiamen) Ltd. is a fabless semiconductor company founded by overseas Chinese in 2006. The company specializes in analog and mixed-signal integrated circuit design and development. Successful products include 24-bit analog-to-digital converters designed especially for weighing scale applications.
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