7Semi HX711 Load Cell Amplifier - 24bit ADC for Weigh Scales

The 7Semi HX711 Load Cell Amplifier is a precision 24-bit analog-to-digital converter (ADC) designed specifically for weigh scale and pressure measurement applications. It amplifies the low-level output signal from load cells and converts it into a digital value for microcontroller or processor-based systems. The module provides stable and high-resolution readings, ideal for creating digital weighing scales and force measurement systems. With a simple two-wire interface, it is easy to integrate into embedded or IoT-based measurement projects.

Technical Specifications:

• Chipset: HX711 (24-bit ADC)
• Input Channels: 2 differential input channels (Channel A and Channel B)
• Gain Options: 32, 64, and 128 (programmable via input pin selection)
• Operating Voltage: 2.6 V to 5.5 V (typical 5 V)
• Operating Current: <1.5 mA (normal operation)
• Interface: Digital serial interface (2-wire, compatible with most microcontrollers)
• Conversion Rate: 10 Hz or 80 Hz selectable
• Resolution: 24-bit ADC resolution
• Input Type: Differential (supports bridge-type sensors like load cells)
• Temperature Range: -40°C to +85°C
• Output Format: 2-wire digital serial data (DOUT, SCK)\
• PCB Type: Compact, breadboard-friendly module
• Dimensions: Small and easy to integrate in weighing projects

Features:

• High precision 24-bit ADC for weight and pressure measurement
• Dual-channel input for multiple load cell connections
• Selectable gain settings for flexible amplification
• Simple two-wire digital interface for easy microcontroller communication
• On-chip power supply regulator for stable operation
• Low noise design ensuring stable and accurate readings
• Compact PCB suitable for embedded applications
• Low power consumption ideal for battery-powered devices

Applications:

• Digital weighing scales and kitchen scales
• Industrial weighing systems and force sensors
• Load measurement in automation and robotics
• Smart agriculture (weight-based feed or fertilizer systems)
• IoT-based weight monitoring devices
• Pressure sensing and material testing systems