HX710A – 24-Bit Sigma-Delta ADC – Avia Semiconductor

The HX710A is a precision 24-bit sigma-delta analog-to-digital converter (ADC) from Avia Semiconductor, designed to interface directly with bridge sensors for weigh-scale and industrial measurement applications. Supplied in a SOIC-8 package.

The HX710A is a precision 24-bit sigma-delta analog-to-digital converter (ADC) manufactured by Avia Semiconductor (Xiamen), part of the widely deployed HX710 family used in high-precision electronic scales and bridge-sensor measurement systems. The device integrates a low-noise programmable gain amplifier (PGA), an on-chip oscillator, and a simple serial digital interface, allowing it to connect directly to a resistive bridge sensor with a minimal external component count.

The HX710A variant additionally provides an on-chip digital temperature sensor, enabling the host system to read the internal die temperature for compensation purposes. (The companion HX710B variant instead provides supply voltage-difference detection rather than the temperature-sense capability.) The HX710A is packaged in a compact SOIC-8 form factor and operates from a single 2.6 V to 5.5 V supply, making it suitable for both battery-powered and line-powered designs.

Key Features

• Resolution: 24-bit sigma-delta A/D converter
• Integrated PGA: on-chip low-noise amplifier with fixed gain of 128
• Full-scale input: +/-20 mV differential when a 5 V reference is applied to VREF (gain of 128)
• On-chip oscillator: provides the system clock with no external components required
• On-chip digital temperature sensor (HX710A variant) for reading internal die temperature
• Selectable output data rate: 10 Hz and 40 Hz
• Simultaneous 50 Hz / 60 Hz supply rejection
• Supply voltage: 2.6 V to 5.5 V single supply
• Operating temperature range: -40 C to +85 C
• Package: SOIC-8
• RoHS compliant

Applications

• High-precision electronic and weigh scales
• Load-cell and resistive bridge sensor front ends
• Industrial process measurement and control
• Pressure and barometric sensor modules
• Force and torque measurement instruments
• Battery-powered portable measurement devices

Why Source HX710A from Pacific Component Xchange

The HX710A is a specialty bridge-sensor ADC with limited authorized-distributor availability in Western markets, which can make it difficult to source for production runs and service builds. Pacific Component Xchange is an independent distributor specializing in hard-to-find, allocated, and obsolete memory and semiconductor components. We currently have HX710A inventory available and support volume requirements.

Every order is backed by our commitment to authenticity, inspection, and supply-chain traceability, with global shipping to support your engineering and procurement timelines. Pricing on this part is provided by quote. Request an RFQ from Pacific Component Xchange today for current pricing, lead time, and quantity availability on the HX710A.