HX711 Digital Converter IC

The HX711 Digital Converter IC is a high-performance 24-bit analog-to-digital converter (ADC) designed for weigh scale and industrial control applications to interface directly with a bridge sensor.

Key Features

• 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
• Simple digital control and serial interface: pin-driven controls, no programming needed

Technical Specifications

• Operation supply voltage range: 2.6 ~ 5.5V
• Operation temperature range: -40 ~ +85°C
• 24-bit delta-sigma ADC
• Selectable 10SPS or 80SPS output data rate
• Simultaneous 50 and 60Hz supply rejection

Possible Applications

• Weigh scales
• Industrial control systems
• Portable instrumentation
• Force gauges
• Aerospace and automotive sensors