Power Electronics / Power Management


Fully differential amplifier

25 August 2021 Power Electronics / Power Management

Now stocked by Mouser Electronics, the THS4567 from Texas Instruments is a novel fully differential amplifier (FDA) that includes both independent input common-mode (VICM) and output common-mode (VOCM) control, while standard FDAs possess only the latter. The THS4567 is a decompensated amplifier with a minimum stable gain of 10 V/V. It operates as a fully differential transimpedance amplifier (TIA) and analog-to-digital converter (ADC) driver in a single integrated stage.

The VICM loop decouples the reverse bias across the photodiode (PD) from the amplifier’s input and output swing compliance ranges, thereby allowing the designer to maximise the PD reverse bias and minimise the PD capacitance. The VICM loop can be disabled, which then allows the THS4567 to operate as a standard FDA. The VOCM loop sets the differential output common-mode voltage and is typically set at the subsequent ADC stage common-mode reference voltage.

Applications for the THS4567 include absolute optical encoders, AC drive position feedback, linear motor position sensors, clinical pulse oximeters and optical coherence tomography.


Credit(s)



Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

The role of bidirectional charging in the evolving energy landscape
Avnet Silica Power Electronics / Power Management
As reliance on renewable sources like wind and solar continues to grow, the need for efficient energy flow and storage solutions has become more critical than ever.

Read more...
How to calculate a buck converter’s inductance
Power Electronics / Power Management
In the buck circuit, the inductor design is a key element that is closely related to system efficiency, the output voltage ripple, and loop stability.

Read more...
High-current EMI filters
Accutronics Power Electronics / Power Management
TDK has introduced 20 and 40 A, 80 V DC board-mount EMI filters, reducing differential mode conducted emissions for switching power supplies with high input current requirements.

Read more...
Isolated SMD DC-DC converters
iCorp Technologies Power Electronics / Power Management
MinMax has launched a series of isolated SMD DC-DC converters, the MSU01 series delivering 1 W, while the MSU02 series offers 2 W output.

Read more...
Next-gen power meter
Electrocomp Express Power Electronics / Power Management
The VT-PWR-LV is a next-gen Vista Touch power meter from Trumeter for single, split, and three-phase systems.

Read more...
How smart components drive sustainable industrial efficiency
TRX Electronics Editor's Choice Manufacturing / Production Technology, Hardware & Services
Manufacturing industries across South Africa face mounting pressure to reduce operational costs whilst meeting increasingly stringent environmental regulations, and the path to achieving these goals lies in embracing advanced electronic components that enable smarter, more efficient industrial operations.

Read more...
Advanced PMIC for high-performance AI applications
ASIC Design Services Power Electronics / Power Management
Microchip Technology has announced the MCP16701, a Power Management Integrated Circuit (PMIC) designed to meet the needs of high-performance MPU and FPGA designers.

Read more...
New SiC power MOSFET
Future Electronics Power Electronics / Power Management
STMicroelectronics’ SCT012H90G3AG is a robust, automotive-grade SiC MOSFET, engineered for demanding power electronics, featuring a 900?V drain-source voltage and exceptionally low on-resistance of 12?mO at 60?A.

Read more...
Fundamental motor control design challenges and solutions
Power Electronics / Power Management
Mouser Electronics has announced a new eBook in collaboration with Qorvo, featuring industry experts providing key insights into methods, power efficiency and integration solutions available for motor control applications.

Read more...
Power management IC for battery products
Power Electronics / Power Management
The nPM1304 PMIC complements Nordic’s nPM1300 PMIC with a highly integrated, ultra-low power solution and precision fuel gauging for small size battery applications.

Read more...









While every effort has been made to ensure the accuracy of the information contained herein, the publisher and its agents cannot be held responsible for any errors contained, or any loss incurred as a result. Articles published do not necessarily reflect the views of the publishers. The editor reserves the right to alter or cut copy. Articles submitted are deemed to have been cleared for publication. Advertisements and company contact details are published as provided by the advertiser. Technews Publishing (Pty) Ltd cannot be held responsible for the accuracy or veracity of supplied material.




© Technews Publishing (Pty) Ltd | All Rights Reserved