Thesis Pte Ltd

One thesis

Copyright © 2022 Thesis Pte. Ltd. All Rights Reserved

OFFICE

34 Boon Leat Terrace #04-09A Singapore 119866

GET IN TOUCH

One thesis

Copyright © 2022 Thesis Pte. Ltd. All Rights Reserved

Blog

What is a transimpedance amplifier (TIA) circuit?

April 29, 2023
1 Mins read

A transimpedance amplifier (TIA) circuit converts optical sensor signals into electrical signals for an embedded system to capture.

Key design parameters for a TIA circuit:

  • Sensor sensitivity
  • Signal-to-noise ratio
  • System bandwidth
  • Op-amp input impedance
  • Op-amp noise
  • Capacitor and resistor values for noise reduction
  • Parasitic capacitance minimization for signal integrity
  • Adjustable gain settings in unipolar, bipolar, and floating configurations

Op-amps with high input impedance and low noise are necessary to minimize signal distortion and maximize the signal-to-noise ratio.

To ensure the circuit's noise density, frequency response, and stability, simulation using tools such as LTspice is necessary. Balancing capacitor and resistor values is critical to guaranteeing low noise during simulation. In some cases, the op-amp model needed for simulation may not be available in the LTspice model and may need to be converted from other simulation models. We have written an article on one way that how you may do that [https://www.onethesis.com/how-to-create-an-ltspice-model-from-pspice-or-tina-ti-model/].

Once designed, the TIA circuit can be integrated into a printed circuit board (PCB) or embedded system. Care must be taken to minimize parasitic capacitance and maintain signal integrity. Analog-to-digital converters (ADCs) can digitize and process the TIA output in preparation for further processing by the embedded system's microcontroller or digital signal processor (DSP).

A well-designed TIA circuit is an effective solution for converting optical sensor signals into electrical signals suitable for capture by an embedded system.

In Thesis, we have designed low-noise, high-speed TIA circuits with fixed/adjustable gain settings in unipolar, bipolar, and floating configurations. Many of our designs were integrated into applications for health monitoring, environmental monitoring, and communication. Feel free to chat with us about how we could help with your product.

==========================================

Kickstart Your Product Idea

As your strategic product partner, THESIS is always ready to help you innovate and value-add on your products.

Contact us:

contact@onethesis.com

www.onethesis.com

www.linkedin.com/company/onethesis

www.twitter.com/onethesistech

www.instagram.com/onethesis/

#appdevelopment #appdeveloper #appdevelopmentcompany #appdesign #appdesigner #appdevelopmentservices #softwaredevelopment #softwaredeveloper #softwaredesign #softwareengineer #softwarecompany #softwaresolutions #websitedesign #webdevelopment #webdeveloper #webdesigner #webdevelopmentcompany #webdesignagency #webdevelopmentservices #consultant #consultantservices #consultants #Productideation #Feasibilityevaluation #Developmentroadmap #Systemarchitecture #UIUXdesign #Conceptualisation #DevelopSchematic #DevelopPCB #DevelopEmbeddedsystem #DeployContractmanufacturing #DeployComponentmanagement #DeployBoxbuildassembly #DeployDFMoptimisation

Read more
Openearable – opensource earpiece design
May 4, 2023
1 Mins read

Openearable [https://open-earable.teco.edu/] is a state-of-the-art open-source “earable” platform using the Arduino Nano 33 BLE Sense ecosystem. It offers a flexible and modular approach to building “earable” devices, allowing developers to customize the device to their preferences effortlessly. The core module of the platform is based on the Arduino Nano 33 BLE Sense board, equipped with […]

TI foray into M0+ MCUs
Read more
TI foray into M0+ MCUs
March 18, 2023
1 Mins read

Texas Instruments (TI) made an announcement at the Embedded World conference that was nothing short of thrilling. With a bold move into the Cortex-M0 microcontroller market, TI has demonstrated its unwavering commitment to meeting the ever-changing needs of its customers. This microcontroller architecture is in high demand for everything from consumer electronics to industrial automation, […]

Read more
RPI and other SOM/SBC
March 6, 2023
1 Mins read

In the world of DIY projects, the Raspberry Pi (RPI) has been a staple for enthusiasts, hobbyists, and professionals alike. However, with the lack of stock for the RPI, many have been forced to get creative with their projects, looking for new and innovative ways to upgrade their devices. Some have turned to reworking the […]