HX710B IC – 24-Bit ADC with Voltage Difference Detection – AVIA

The HX710B IC is a precision 24-bit analog-to-digital converter (ADC) from Avia Semiconductor, designed specifically for weigh scales and industrial control applications. This versatile ADC interfaces directly with bridge sensors and includes features such as an integrated temperature sensor (HX710A) or DVDD and AVDD voltage difference detection (HX710B). With a low-noise programmable gain amplifier (PGA) offering a fixed gain of 128, it supports a full-scale differential input voltage of ±20mV when connected to a 5V reference voltage.

The on-chip oscillator on HX710B IC eliminates the need for external components, while the power-on-reset circuitry simplifies digital interface initialization, ensuring ease of use without any programming for internal registers.

Features:

• Voltage Difference Measurement: DVDD and AVDD voltage detection (HX710B).
• Low Noise Amplifier: Fixed gain of 128 for enhanced signal integrity.
• On-chip Oscillator: No external components required.
• Power-On-Reset: Simplifies system startup and initialization.
• Digital Control: Easy pin-driven controls, no programming necessary.
• Selectable Output Data Rate: Options for 10SPS or 40SPS.
• Supply Rejection: Simultaneous 50Hz and 60Hz rejection.
• Low Power Consumption: Normal operation < 1.2mA; Power down < 1μA.
• Supply Voltage Range: Operates from 2.6V to 5.5V.
• Temperature Range: -40°C to +85°C.
• Package: SOP-8 package.

Applications:

• Weigh scales and measurement systems
• Industrial control and automation
• Precision instrumentation
• Bridge sensor applications