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Boardoza HX711 24-Bit ADC Module
The HX711 24-Bit Analog-to-Digital Converter (ADC) Module is designed for precision load cell measurements, making it ideal for electronic weighing scales and industrial control applications. It features a low-noise programmable gain amplifier and supports two selectable differential input channels. The module operates with low power consumption, making it suitable for battery-powered applications. Input Voltage: 2.7V - 5.5V Functions: 24-Bit ADC for load cells and weigh scales Supply Current: 1.5mA Operating Temperature: -40°C ~ +85°C Board Dimensions: 20mm x 40mm
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Key Features
- 24-bit ADC designed for weigh scales and industrial applications.
- Two selectable differential input channels (To use channel B, R7(100R), R8(100R), and C8(100nF) must be populated).
- Low power consumption: <1.5mA in normal operation, <1µA in power-down mode.
- Integrated low-noise programmable gain amplifier.
- Selectable output data rates: 10SPS or 80SPS.
- Wide operating voltage range: 2.7V to 5.5V.
Technical Specifications
- Input Voltage
- 2.7V - 5.5V
- Functions
- 24-Bit ADC for load cells and weigh scales
- Supply Current
- 1.5mA
- Operating Temperature
- -40°C ~ +85°C
- Board Dimensions
- 20mm x 40mm
Board Pinout
J1 Connector
| Pin Number | Pin Name | Description |
|---|---|---|
| 1 | VCC | 2.7V - 5.5V Power Input |
| 2 | VDD | 2.7V - 5.5V Power Input |
| 3 | DAT | Serial Data Output |
| 4 | CLK | Serial Clock Input |
| 5 | GND | Ground |
J2 Connector
| Pin Number | Pin Name | Description |
|---|---|---|
| 1 | B+ | Positive Signal (Second Channel) |
| 2 | B- | Negative Signal (Second Channel) |
J3 Connector (Load Cell Interface)
| Pin Number | Pin Name | Description |
|---|---|---|
| 1 | RED/E+ | + Excitation |
| 2 | BLK/E- | - Excitation |
| 3 | WHT/A- | - Signal |
| 4 | GRN/A+ | + Signal |
JP1 Jumper Settings
| Pin Number | Pin Name | Description |
|---|---|---|
| 1-2 | 80 Samples per Second (SPS) | |
| 2-3 | 10 Samples per Second (SPS) |
Datasheet
Download (PDF)Support
For technical questions, documentation and issue reports, use the GitHub repository or write to us directly.