The THS4552 fully differential amplifier offers an easy interface from single-ended sources to the differential output required by high-precision analog-to-digital converters (ADCs). Designed for exceptional dc accuracy, low noise, and robust capacitive load driving, this device is well suited for data acquisition systems where high precision is required along with the best signal-to-noise ratio (SNR) and spurious-free dynamic range (SFDR) through the amplifier and ADC combination.
The THS4552 features the negative rail input required when interfacing a dc-coupled, ground-centered, source signal to a single-supply differential input ADC. Very low dc error and drift terms support the emerging 16- to 20-bit successive-approximation register (SAR) input requirements. A wide-range output common-mode control supports the ADC running from 1.8 V to 5 V supplies with ADC common-mode input requirements from 0.7 V to greater than 3.0 V.
The THS4552 device is characterized for operation over the wide temperature range of –40°C to +125°C, and is available in 16-pin TSSOP and 24-pin VQFN packages.
| Top documentation | Type | Title | Format options | Date |
|---|---|---|---|---|
| * | Data sheet | THS4552 Dual-Channel, Low-Noise, Precision, 150-MHz, Fully Differential Amplifier datasheet (Rev. B) | PDF | HTML | Jun 16, 2021 |
| 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 | |
| Application note | Continuous Wave Doppler Signal Chain Designs for TI’s Ultrasound AFE (Rev. A) | PDF | HTML | May 22, 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 | |
| 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.
This reference design presents a four-quadrant discrete floating Voltage and Current (VI) design. Voltage output supports ±40V and 0V to 80V ranges, with three current ranges of 500mA, 10mA, and 10μA. The design operates on force voltage (FV), force current (FI), Buffer, and Gang mode with analog (...)
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| WQFN (RTW) | 24 | Ultra Librarian |
| TSSOP (PW) | 16 | Ultra Librarian |
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