Low Power ADC | ASTRI - Hong Kong Applied Science And Technology Research Institute Company Limited

ASTRI has established a family of low power ADC IPs.

12/14 bit low power Successive Approximation Register (SAR) ADC delivers low power and low cost analog to digital conversion of reasonable performance for portable medical and sensor devices. ASTRI’s IP is already in mass production for various applications.

Key features:

Sampling rate up to 1Msps
Ultra low power
ENOB = 11.2b
Silicon proven: TSMC 0.18um, TSMC 0.25um, SMIC 0.13um

24-bit sigma delta ADC is based on sigma delta technology intended primarily for instrumentation applications. It consists of a second-order three-bit quantizer noise shaping modulator and digital decimation filter.

Key features:

Low input-referred noise: 1.5uVrms
Multi-bit feedback DAC with Data-Weighted Averaging to achieve low power consumption
Unity feedforward architecture for low distortion
2^nd order modulator loop, stable for full scale input
1Ksps sampling rate
Internal or external reference
SPI interface

More about ASTRI

Hong Kong Applied Science and Technology Research Institute (ASTRI) was founded by the Government of the Hong Kong Special Administrative Region in 2000 with the mission of enhancing Hong Kong’s competitiveness through applied research. ASTRI’s core R&D competence in various areas is grouped under five Technology Divisions: Advanced Electronic Components and Systems; Artificial Intelligence and Trust Technologies; Communications Technologies; Innovative Mind; and IoT Sensing and AI Technologies. It is applied across six core areas which are Smart City, Financial Technologies, New Industrialisation and Intelligent Manufacturing, Digital Health, Application Specific Integrated Circuits and Metaverse.

Over the years, ASTRI has nurtured a pool of research, I&T talents and received numerous international awards for its pioneering innovations as well as outstanding business and community contributions. As of 2023/24, ASTRI has transferred more than 1,500 technologies to the industry and has been granted over 1,100 patents in the Mainland, the US, and other countries.

As a Hong Kong R&D centre, one of ASTRI’s important goals is to help customers harness business opportunities from the thriving technology market and increase their competitive strengths. Customers and partners can improve their efficacy by drawing on ASTRI’s expertise and research achievements.