Description

Product Details: Functionality Processor, Micro Controller Number of Pins 8 Package DIP/ 8Pin SOP-8 Type Leaded, Non-Leaded 24-Bit ADC with Built-in Temperature Sensor (HX710A) 24-Bit ADC with (DVDD-AVDD) Voltage Difference Detection (HX710B) DESCRIPTION Based on Avia Semiconductor’s patented technology, HX710(A/B) is a precision 24-bit analog-to-digital converter (ADC) with built-in temperature sensor (HX710A) or DVDD, AVDD voltage difference detection (HX710B). It’s designed for weigh scales and industrial control applications to interface directly with a bridge sensor. The input low-noise amplifier (PGA) has a fixed gain of 128, corresponding to a full-scale differential input voltage of ±20mV, when a 5V reference voltage is connected to the VREF pin. On chip oscillator provides the system clock without any external component. On-chip poweron-reset circuitry simplifies digital interface initialization. There is no programming needed for the internal registers. All controls to the HX710 are through the pins. FEATURES • On-chip temperature measurement (HX701A) • DVDD and AVDD supply voltage difference measurement (HX701B) • On-chip low noise amplifier with a gain of 128 • On-chip oscillator requiring no external component • On-chip power-on-reset • Simple digital control and serial interface: pin-driven controls, no programming needed • Selectable 10SPS or 40SPS output data rate • Simultaneous 50 and 60Hz supply rejection • Current consumption: normal operation < 1.2mA, power down < 1uA • Operation supply voltage range: 2.6 ~ 5.5V • Operation temperature range: -40 ~ +85ć • 8 pin SOP-8 package