Ultra-low power read-out integrated circuit design

Abstract

In this paper, an ultra-low power, small size CMOS read-out-integrated-circuit (ROIC) is presented. This ROIC can interface wide dynamic range signal up to six orders (100pA-6mA) from deployable sensors, such as biomedical sensors, chemical sensors etc. A high performance automatic gain control (AGC) trans-impedance amplifier (TIA), is included in this ROIC. A novel technology of sub-threshold technique is applied in this design, which can save up to 96% (from 25.2mW to 0.89mW) power consumption comparing to the circuit operating in super-threshold. The proposed circuit also has the capability to output digital signals that can be transmitted wirelessly to the data center for further signal processing.