HX710B

HX710 is a 24-bit A/D converter chip designed for high-precision electronic scales. Compared to similar chips, it offers advantages such as high integration, fast response, and strong noise immunity, reducing the overall cost of electronic scales while improving system performance and reliability. The on-chip digital temperature sensor of HX710A can directly read out the temperature inside the chip, i.e., within the system. HX710B can be used to detect battery voltage by measuring the voltage difference of (DVDD - AVDD).

Applications

• Electronic scale

Key features

• Patented IC technology
• High integration, fast response, strong noise immunity
• Input low-noise amplifier gain of 128; with VREF = 5V, full-scale differential input signal amplitude is ±20mV
• On-chip clock oscillator requires no external components
• On-chip direct temperature measurement and digital output (HX710A)
• (DVDD - AVDD) voltage differential measurement (HX710B)
• Power-on automatic reset circuit
• Simple digital control and serial communication: all control via pin inputs, no on-chip register programming required
• Selectable output data rates: 10Hz and 40Hz
• Simultaneous rejection of 50Hz and 60Hz power supply interference
• Power consumption: typical operating current 1.2mA, power-down current 1μA
• Operating voltage range: 2.6 ~ 5.5V
• Operating temperature range: -40 ~ +85°C
• 8-pin SOP-8 or DIP-8 package