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Product details

Parameters

Number of channels (#) 1 Total supply voltage (Min) (+5V=5, +/-5V=10) 2.7 Total supply voltage (Max) (+5V=5, +/-5V=10) 5.4 BW @ Acl (MHz) 620 Acl, min spec gain (V/V) 1 Slew rate (Typ) (V/us) 1500 Vn at flatband (Typ) (nV/rtHz) 2.2 Iq per channel (Typ) (mA) 10.1 Rail-to-rail In to V-, Out Vos (offset voltage @ 25 C) (Max) (mV) 0.45 Operating temperature range (C) -40 to 125 Output current (Typ) (mA) 100 2nd harmonic (dBc) 140 3rd harmonic (dBc) 140 GBW (Typ) (MHz) 850 Input bias current (Max) (pA) 13000000 @ MHz 0.1 CMRR (Typ) (dB) 100 open-in-new Find other Fully differential amplifiers

Package | Pins | Size

VQFN (RGT) 16 9 mm² 3 x 3 WQFN (RUN) 10 4 mm² 2 x 2 open-in-new Find other Fully differential amplifiers

Features

  • Fully Differential Amplifier (FDA) Architecture
  • Bandwidth: 500 MHz (G = 2 V/V)
  • Gain Bandwidth Product: 850 MHz
  • Slew Rate: 1500 V/µs
  • HD2: –95 dBc at 10 MHz (2 VPP, RL = 500 Ω)
  • HD3: –90 dBc at 10 MHz (2 VPP, RL = 500 Ω)
  • Input Voltage Noise: 2.2 nV/Hz (f > 100 kHz)
  • Low offset drift: ±0.5 µV/°C (typ)
  • Negative Rail Input (NRI)
  • Rail-to-Rail Output (RRO)
  • Robust Operation for Rload ≥ 50 Ω
  • Output Common-Mode Control
  • Power Supply:
    • Single-Supply Voltage Range: 2.7 V to 5.4 V
    • Split-Supply Voltage Range: ±1.35 V to ±2.7 V
    • Quiescent Current: 10.1 mA (5-V Supply)
  • Power-Down Capability: 2 µA (typ)
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Description

The THS4541 is a low-power, voltage-feedback, fully differential amplifier (FDA) with an input common-mode range below 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 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 easy interface between single-ended, ground-referenced, bipolar signal sources and a wide variety of SAR, ΔΣ, or pipeline ADCs using only a single +2.7-V to +5.4-V power supply.

The THS4541 is characterized for operation over the wide temperature range of –40°C to 125°C available in 16-pin VQFN and 10-pin WQFN packages.

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Technical documentation

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Type Title Date
* Datasheet THS4541 Negative Rail Input, Rail-to-Rail Output, Precision, 850-MHz Fully Differential Amplifier datasheet (Rev. A) Sep. 30, 2014
Application notes Time of Flight and LIDAR - Optical Front End Design Feb. 04, 2020
Application notes Maximizing System Total Harmonic Distortion Using High Speed Amplifiers Jun. 20, 2018
More literature The Signal e-book: A compendium of blog posts on op amp design topics Mar. 28, 2017
Selection guides TI Components for Aerospace and Defense Guide (Rev. E) Mar. 22, 2017
Technical articles How to minimize filter loss when you drive an ADC Oct. 20, 2016
Application notes Design for a Wideband Differential Transimpedance DAC Output (Rev. A) Oct. 17, 2016
Technical articles Go differential to differentiate your precision design Aug. 11, 2016
Technical articles How to use a fully differential amplifier as a level shifter Jul. 13, 2016
Technical articles What you need to know about internal ESD protection on integrated circuits Dec. 02, 2015
User guides Optical Front-End System Design Guide Oct. 26, 2015
User guides THS4541RGT EVM User's Guide Jun. 26, 2014
Application notes Using single-supply fully diff. amps with neg. input voltages to drive ADCs Nov. 15, 2010
Application notes Input impedance matching with fully differential amplifiers Oct. 22, 2008
Application notes Design for a Wideband Differential Transimpedance DAC Output Apr. 18, 2008
Application notes Noise Analysis for High Speed Op Amps (Rev. A) Jan. 17, 2005

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

EVALUATION BOARDS Download
Description

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 (...)

Features

Board Features

  • Texas Instruments ADC34J22 Analog to Digital Converter
  • 4 channel, 12bit, 50 MSPS, JESD204B compliant ADC module
  • Two RF AC coupled input channels
  • Two Analog DC coupled input channels
  • External clock input
  • External trigger input
  • On board TI LMK04828B Dual Loop
  • Clock Jitter Cleaner Reference (...)
EVALUATION BOARDS Download
document-generic User guide
$99.00
Description

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 (...)

Features
  1. Configured for split-supply operation and easily modified for single supply.
  2. Default gain of 2 configuration can easily be reconfigured for other gains.
  3. Designed for easy connection to standard 50-Ω input/output impedance test equipment.
  4. Inputs and outputs include SMA connectors.

Design tools & simulation

SIMULATION MODELS Download
SBOM906B.ZIP (9 KB) - TINA-TI Spice Model
SIMULATION MODELS Download
SBOM907B.TSC (52 KB) - TINA-TI Reference Design
SIMULATION MODELS Download
SBOM932A.ZIP (18 KB) - PSpice Model
SIMULATION TOOLS Download
SPICE-based analog simulation program
TINA-TI TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
document-generic User guide

Reference designs

REFERENCE DESIGNS Download
LIDAR-Pulsed Time-of-Flight Reference Design Using High-Speed Data Converters
TIDA-01187 — Time-of-flight (ToF) optical methods for measuring distance with high precision are utilized in a variety of applications, such as laser safety scanners, range finders, drones, and guidance systems. This design details the advantages of a high-speed data-converter-based solution, including target (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
12-bit, 20-MSPS Data Acquisition Reference Design for Digitizer
TIDA-00942 This reference design enables a cost-effective and low-power data acquisition system that provides an alternative to FPGA-based systems. It features a single-ended, high-impedance input that can be used in a wide number of applications, including portable instrumentation and digitizers.

The reference (...)

document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Wide Bandwidth Optical Front-end Reference Design
TIDA-00725 This reference design implements and measures a complete 120MHz wide bandwidth optical front end comprising a high speed transimpedance amplifier, fully differential amplifier, and high speed 14-bit 160MSPS ADC with JESD204B interface.  Hardware and software are provided to evaluate the (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Quad-Channel, 12-Bit, 50-MSPS ADC Reference Design With Low Noise, Low Distortion, DC and AC Inputs
TIDA-00799 — This reference design demonstrates how to implement a single-ended-to-differential input path, which can be AC-coupled or DC-coupled for an ADC3422. It also explains how to design a high-input impedance, DC-coupled input path. The reference design can be used for applications such as low-power data (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
High Perf Single Ended to Diff Active Interface for High Speed ADC Developed by Dallas Logic Corp
Provided by Dallas Logic Corporation This reference design uses the ADC34J22 12b 50Msps JESD204B data converter and the THS4541 fully differential amplifer to demonstrate 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, and test and (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
QFN (RUN) 10 View options
VQFN (RGT) 16 View options

Ordering & quality

Support & training

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