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In this paper a low power and low area array multiplier with carry save adder is proposed. The proposed adder eliminates the final addition stage of the multiplier than the conventional parallel array multiplier. The conventional and proposed multiplier both are synthesized with 16-T full adder. Among Transmission Gate, Transmission Function Adder, 14-T, 16-T full adder shows energy efficiency. In...
In this paper, we discuss the noise contribution of the current source transistors in the charge sensitive amplifier for application in the front-end semiconductor radiation detectors. We developed an analytical methodology that allow to determine the optimum geometry for the current source transistors, so that the current source transistor ends up contributing only a fraction of the input transistor...
This paper presents our work on a 8-channel low noise Front-End electronic coupled to a Liquid Argon (LAr) TPC (Time Projection Chamber). Each channel consists of a Charge Sensitive Amplifier (CSA), a band pass filter and a 50 Ohms buffer as line driver. A serial link based on a `i2c-like' protocol, provides multiple configuration features to the circuit by accessing slow control registers. Only the...
A 160 channel read-out circuit aimed for a large energy-resolved photon-counting X-ray pixel detector has been designed. The high number of channels combined with high speed and noise performance requires very low power consumption and small footprint of the analog channel. We describe the design of the analog channel, aimed for a detector capacitance of 3-5pF and with a target ENC of 300 electrons...
The Krummenacher feedback circuit is a well know and often used in charge sensitive amplifiers (CSA) connected to DC-coupled semiconductor detectors. The circuit provides in a very simple structure dual functionality: continuous reset and detector leakage current compensation. In spite of the simplicity the characterization of the circuit for high speed applications is not very straightforward. This...
The paper presents a readout circuit associated with photodiodes dedicated to an in-vivo dosimeter. The circuit consists of a fully differential charge sensitive amplifier (CSA) stage, a differential-to-single-ended amplifier stage and a buffered double sampling stage. The CSA implements a switched integration method to minimize dark current contribution to integrated output signal. Its fully differential...
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