Nettsider med emneord «front-end»

CMOS image sensors (CIS) are widely adopted in various applications for example mobile and automotive cameras. As the application expanding their functionality to motion sensing and autonomous driving, the applications keep demanding for higher resolution and faster operating CIS while maintaining the power budget. Therefore, implementing CIS with low-noise and low-power analogue front end (AFE) is essential. Moreover, in an advanced process, conventional analogue design approaches have many challenges such as lower intrinsic gain of devices, and smaller headroom for operation. Therefore, a new structure is highly required to meet the requirements and to solve the challenges. A current-reusing architecture, as the name self-explained, utilizes the supply current to generate transconductance of both PMOS and NMOS. Therefore, the structure could improve gain, bandwidth, and noise characteristics comparing to the conventional analogue stages. For this reason, architecture is a suitable candidate for the solution.