The HX710B is a 24-bit analog-to-digital converter (ADC) that is designed specifically for weigh scales and industrial control applications. It allows direct interfacing with a bridge sensor, providing precise and accurate measurements. The built-in low-noise amplifier (PGA) ensures reliable signal amplification with a fixed gain of 128, which corresponds to a full-scale differential input voltage of ±20mV when connected to a 5V reference voltage at the VREF pin.

The HX710B generates the system clock using an on-chip oscillator, eliminating the need for external components. The on-chip power-on-reset circuitry simplifies digital interface initialization, eliminating the need for programming internal registers. The control of the HX710B is achieved through its pins, providing a simple digital interface.

Key features of the HX710B include:
– Selectable output data rates of 10SPS or 40SPS.
– Simultaneous rejection of 50 and 60Hz supply noise.
– Low current consumption (<1.2mA in regular operation, <1uA in power-down mode).
– The HX710B operates within a voltage range of 2.6V to 5.5V and a temperature range of -40°C to +85°C, ensuring versatility and reliability in various environments.

The HX710B is packaged in an 8-pin SOP-8 package, which offers compactness and easy integration into electronic systems. Variants such as the HX701A include on-chip temperature measurement, while the HX701B provides DVDD and AVDD supply voltage difference measurement, further enhancing its versatility and functionality.