The THS4541-Q1 is a low-power, voltage-feedback, fully differential amplifier (FDA) with an input common-mode range less than the negative rail, and rail-to-rail output. Designed for low-power data acquisition systems where high density is critical in a high-performance analog-to-digital converter (ADC) or digital-to-analog converter (DAC) interface design.
The THS4541-Q1 features the negative-rail input required when interfacing a dc-coupled, ground-centered, source signal. This negative-rail input, with rail-to-rail output, allows for an easy interface between single-ended, ground-referenced, bipolar signal sources and a wide variety of successive approximation register (SAR), delta-sigma (ΔΣ), or pipeline ADCs using only a single 2.7V to 5.4V power supply.
The THS4541-Q1 is characterized for operation over the wide temperature range of –40°C to +125°C and is available in a 16-pin VQFN package, both with and without wettable flanks. The package with wettable flanks eases post-assembly visual inspection and is available as the THS4541W-Q1.
| Top documentation | Type | Title | Format options | Date |
|---|---|---|---|---|
| * | Data sheet | THS4541-Q1 Negative-Rail Input, Rail-to-Rail Output, Precision, 850MHz Fully Differential Amplifier datasheet (Rev. C) | PDF | HTML | Oct 17, 2024 |
| Application brief | Why Use an FDA to Drive an ADC? | PDF | HTML | Jan 8, 2026 | |
| Application brief | Active Filter Design for Differential ADCs (Rev. A) | PDF | HTML | Oct 8, 2025 | |
| Circuit design | Single-ended input to differential output circuit using a fully-differential amp (Rev. A) | PDF | HTML | Sep 25, 2024 | |
| E-book | Engineer's Guide to High-Speed Amplifiers | PDF | HTML | Oct 18, 2023 | |
| Application note | Attenuator Amplifier Design to Maximize the Input Voltage of Differential ADCs | Jun 14, 2018 | ||
| E-book | The Signal e-book: A compendium of blog posts on op amp design topics | PDF | HTML | Mar 28, 2017 | |
| Application note | Design for a Wideband Differential Transimpedance DAC Output (Rev. A) | Oct 17, 2016 | ||
| Analog design Journal | Using single-supply fully diff. amps with neg. input voltages to drive ADCs | Nov 15, 2010 |
For additional terms or required resources, click any title below to view the detail page where available.
The THS4541RGT EVM is an evaluation module for the single THS4541 amplifier in the RGT package. This evaluation module is designed to quickly and easily demonstrate the functionality and versatility of the amplifier. The EVM is ready to connect to power, signal source, and test instruments (...)
The DEV-ADC34J22 is a four-channel, 50MSPS ADC Module designed to integrate with Altera’s HSMC standard. The DEV-ADC34J22 features TI’s new JESD204B compliant ADC34J22 Analog Digital Converter (ADC), with clocking conditioning using TI’s LMK04828 jitter cleaner. It provides (...)
This reference design, provided by Dallas Logic Corp, uses the ADC34J22 12b 50MSPS JESD204B data converter and the THS4541 fully differential amplifier to show how to design a high-performance active interface for high speed ADCs. This type of circuit can be used in sensor front end, motor control, (...)
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| VQFN (RGT) | 16 | Ultra Librarian |
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