NADC24, which stands for NuMicro 24-bit Analog-to-Digital Converter (ADC), is an integrated 24-bit delta-sigma (ΔΣ) analog-to-digital converter. Designed to deliver excellent precision and speed, the NADC24 series achieves outstanding low-noise performance with up to 22-bit Effective-Number-of-Bits (ENOB). This makes it an ideal choice for demanding applications where high-precision analog signal conversion is essential for optimal performance.

The key components of NADC24 include a low-noise programmable gain amplifier (PGA), an internal voltage reference of 1.2V or 2.4V, a delta-sigma modulator, a digital filter and a 49.152 MHz oscillator. The characteristics of these key components ensure NADC24’s high precision signal conversion. Furthermore, in order to achieve higher performance and integration, the NADC24 series integrates an input multiplexer with up to 8 single-ended channels, a 12-bit Digital-to-Analog Converter (optional in its portfolio), a temperature sensor and an SPI interface. These integrated features effectively facilitate a compact PCB design and reduce component costs. The NADC24’s operating voltage ranges from 2.7 V to 3.6 V while its operating temperature ranges from -40 °C to 105 °C. The NADC24 series offers NADC24D003FA with TSSP20 package and NADC24D004TA with QFN32 package.

As a highly integrated precision ADC, the NADC24 series brings significant values in following applications including:

• Utility meters
• Pressure sensors
• Gas sensors
• Oximeters
• Glucose meters
• Temperature controllers
• Programmable logic controllers (PLC)

Features: