Sabu Paul

Title: Sabu Paul: Innovator in Analog-to-Digital Conversion Technologies

Introduction

Sabu Paul is a prominent inventor based in Bengaluru, India. He has made significant contributions to the field of analog-to-digital conversion technologies. With a total of 6 patents to his name, Sabu has demonstrated his expertise and innovative spirit in developing advanced electronic systems.

Latest Patents

One of Sabu Paul's latest patents is a reference buffer, which comprises a comparator, a digital-to-analog converter (DAC), and a switched capacitor accumulator. The comparator receives a reference voltage input, a feedback input, and a control signal. The DAC is coupled to an output of the comparator, while the switched capacitor accumulator is connected to the output of the DAC. In some implementations, a digital filter is integrated between the output of the comparator and the input of the DAC. The switched capacitor accumulator can also be linked to a buffer that outputs the feedback input and a reference voltage for an analog-to-digital converter (ADC). Additionally, the feedback loop may include N one-bit DACs coupled to the output of the comparator and N switched capacitor accumulators, each associated with a unique one-bit DAC.

Another notable patent is related to a pipelined analog-to-digital converter (ADC) and a residue amplifier used within the ADC. This ADC features a capacitive digital-to-analog converter (CDAC), a residue amplifier, and a switched capacitor circuit. The residue amplifier is connected to the CDAC and includes a first complementary transistor pair along with a first tail current circuit. The first complementary transistor pair is linked to a first output of the CDAC and consists of a high-side transistor and a low-side transistor. The first tail current circuit is connected to the high-side transistor, while the switched capacitor circuit interfaces with the inputs of the CDAC and the first tail current circuit. This configuration is designed to generate a voltage that biases the first tail current circuit, compensating for common mode voltage at the inputs of the CDAC.

Career Highlights

Sabu Paul is currently employed at Texas Instruments Corporation, where he continues to innovate and develop cutting-edge technologies. His work has significantly impacted the field of electronics, particularly in the design and implementation of analog-to-digital converters.

Collaborations

Sabu has collaborated with notable colleagues such as Raghu Nandan Srinivasa and Srinivas