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Product details

Parameters

Number of channels (#) 1 Total supply voltage (Min) (+5V=5, +/-5V=10) 5 Total supply voltage (Max) (+5V=5, +/-5V=10) 30 GBW (Typ) (MHz) 180 Slew rate (Typ) (V/us) 50 Rail-to-rail No Vos (offset voltage @ 25 C) (Max) (mV) 3 Iq per channel (Typ) (mA) 14 Vn at 1 kHz (Typ) (nV/rtHz) 1.3 Features Burr-Brown™ Audio, Shutdown THD + N @ 1 kHz (Typ) (%) 0.000022 Rating Catalog Operating temperature range (C) -40 to 85 Output current (Typ) (mA) 85 Architecture Voltage FB CMRR (Typ) (dB) 90 Input bias current (Max) (pA) 200000 open-in-new Find other Audio op amps

Package | Pins | Size

HVSSOP (DGN) 8 9 mm² 3 x 3 SOIC (D) 8 19 mm² 3.91 x 4.9 open-in-new Find other Audio op amps

Features

  • Superior Sound Quality
  • Ultra Low Distortion: 0.000022%
  • Low Noise: 1.3 nV/√Hz
  • High Speed:
    • Slew Rate: 50 V/μs
    • Gain Bandwidth: 180 MHz
  • Fully Differential Architecture:
    • Balanced Input and Output Converts Single-Ended Input to Balanced Differential Output
  • Wide Supply Range: ±2.5 V to ±16 V
  • Shutdown to Conserve Power
  • APPLICATIONS
    • Audio ADC Driver
    • Balanced Line Driver
    • Balanced Receiver
    • Active Filter
    • Preamplifier
  • open-in-new Find other Audio op amps

    Description

    The OPA1632 is a fully-differential amplifier designed for driving high-performance audio analog-to-digital converters (ADCs). It provides the highest audio quality, with very low noise and output drive characteristics optimized for this application. The OPA1632’s excellent gain bandwidth of 180 MHz and very fast slew rate of 50 V/μs produce exceptionally low distortion. Very low input noise of 1.3 nV/√Hz further ensures maximum signal-to-noise ratio and dynamic range.

    The flexibility of the fully differential architecture allows for easy implementation of a single-ended to fully-differential output conversion. Differential output reduces even-order harmonics and minimizes common-mode noise interference. The OPA1632 provides excellent performance when used to drive high-performance audio ADCs such as the PCM1804. A shutdown feature also enhances the flexibility of this amplifier.

    The OPA1632 is available in an SO-8 package and a thermally-enhanced MSOP-8 PowerPAD package.

    For all available packages, see the orderable addendum at the end of the data sheet.
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    Technical documentation

    = Top documentation for this product selected by TI
    No results found. Please clear your search and try again. View all 14
    Type Title Date
    * Datasheet OPA1632 High-Performance, Fully-Differential Audio Operational Amplifier datasheet (Rev. C) Oct. 29, 2015
    Technical articles Get started with smart home audio design May 09, 2019
    Technical articles No headroom, no problem: buffering and filtering an audio signal chain in low-voltage systems Apr. 11, 2019
    Application notes Q3 2009 Issue Analog Applications Journal Sep. 24, 2018
    User guides TIDA-01359 Audio-OPA1632EVM Audio Interface Board Design Guide Apr. 13, 2018
    Technical articles Forget the tiny homes craze – Have you heard about tiny inductors for automotive Class-D amplifiers? Oct. 12, 2017
    White papers The Signal e-book: A compendium of blog posts on op amp design topics Mar. 28, 2017
    Application notes Fully-Differential Amplifiers (Rev. E) Sep. 19, 2016
    Technical articles Amp up your cans: Is your op amp stable? (Part 2) Jan. 22, 2016
    Application notes Using infinite-gain, MFB filter topology in fully differential active filters Jul. 14, 2009
    Application notes Compensate Transimpedance Amplifiers Intuitively (Rev. A) Mar. 30, 2005
    Application notes Analysis of fully differential amplifiers Mar. 11, 2005
    Application notes Designing for low distortion with high-speed op amps Mar. 02, 2005
    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
    document-generic User guide
    3499
    Description

    The ADS1282-SP EVM is a compact evaluation kit for evaluating the ADS1282-SP, a radiation-tolerant, extremely high-performance, dual-channel ADC. The ADS1282-SP EVM plugs directly to the MSP430FR5959 launchpad (not included with ADS1282-SP EVM) which connects to PC via USB. Complete evaluation (...)

    Features
    • Plug and play compatibility with the MSP430FR5969 Launchpad (not included with EVM kit)
    • Easy to use software compatible with Windows 7
    • Built in analysis tools including time domain and FFT graphing
    • Data collection to text files
    • Complete control of device configuration
    EVALUATION BOARDS Download
    document-generic User guide
    49
    Description
    The TI Analog, Active Crossover Audio Plug-in Module turns TI Audio Class-D amplifier EVM’s into a high quality, two-way speaker amplifier.  The plug-in module makes it easy to remove the large and expensive passive crossover found in passive loudspeakers and create a biamped, two-way (...)
    Features
    • Compatible with TI Audio Plug-in Module Ecosystem
    • Complete design for two-way, active crossover speakers
    • Active crossover includes a high-pass filter, low-pass filter, baffle step and delay
    • Input: Mono RCA jack
    • Output: Analog, 2-channel, 2-Vrms differential
    • Connect to TI Class-D Audio EVMs (Check (...)
    EVALUATION BOARDS Download
    document-generic User guide
    149
    Description
    The TPA3220EVM HD-Audio evaluation module demonstrates the TPA3220 pad-down integrated circuit from Texas Instruments. TPA3220 is an ultra-low idle-loss Class-D amp which keeps your system cooler and your battery playing longer while supporting 100kHz high resolution audio and features single-rail (...)
    Features
    •  Stereo HD Audio evaluation module
    •  Integrated protection system (short circuit, clip and thermal)
    •  Device integrated support for Single-Ended (SE) and Differential analog input signals
    •  BTL and PBTL output configurations supported
    •  Double-sided, plated-through, 2oz. Cu 4 layer PCB layout
    •  Convenient XLR (...)
    EVALUATION BOARDS Download
    document-generic User guide
    149
    Description
    The TPA3221EVM HD-Audio evaluation module demonstrates the TPA3221 integrated circuit from Texas Instruments. TPA3221 is an ultra-low idle-loss Class-D amp which keeps your system cooler and your battery playing longer while supporting 100kHz high resolution audio and features single-rail power (...)
    Features
    • Stereo HD Audio evaluation module
    • Integrated protection system (short circuit, clip and thermal)
    • Device integrated support for Single-Ended (SE) and Differential analog input signals
    • BTL and PBTL output configurations supported
    • Double-sided, plated-through, 2oz. Cu 2 layer PCB layout
    • Convenient XLR input (...)

    Design tools & simulation

    SIMULATION MODELS Download
    SBOC064C.ZIP (2 KB) - PSpice Model
    SIMULATION MODELS Download
    SBOC100D.TSC (270 KB) - TINA-TI Reference Design
    SIMULATION MODELS Download
    SBOM182C.ZIP (6 KB) - TINA-TI Spice Model
    SIMULATION TOOLS Download
    PSpice® for TI design and simulation tool
    PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
    Features
    • Leverages Cadence PSpice Technology
    • Preinstalled library with a suite of digital models to enable worst-case timing analysis
    • Dynamic updates ensure you have access to most current device models
    • Optimized for simulation speed without loss of accuracy
    • Supports simultaneous analysis of multiple products
    • (...)
    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
    CALCULATION TOOLS Download
    Analog engineer's calculator
    ANALOG-ENGINEER-CALC — The Analog Engineer’s Calculator is designed to speed up many of the repetitive calculations that analog circuit design engineers use on a regular basis. This PC-based tool provides a graphical interface with a list of various common calculations ranging from setting op-amp gain with feedback (...)
    Features
    • Expedites circuit design with analog-to-digital converters (ADCs) and digital-to-analog converters (DACs)
      • Noise calculations
      • Common unit translation
    • Solves common amplifier circuit design problems
      • Gain selections using standard resistors
      • Filter configurations
      • Total noise for common amplifier configurations
    • (...)

    Reference designs

    REFERENCE DESIGNS Download
    Analog Audio Amplifier Front-end Reference Design with Improved Noise and Distortion
    TIDA-01359 — The Analog Audio Amplifier Front-end Reference Design demonstrates how to build an audio front end for the TPA32xx class-D amplifier. The AUDIO-OPA1632EVM is the board that was designed to test the results of this design. Design files for the board are available in the reference design product (...)
    document-generic Schematic document-generic User guide
    REFERENCE DESIGNS Download
    Public Announcement Audio Reference Design utilizing best in class Boost Controller
    PMP10710 PMP10710 is a 200W design for public announcement audio system which can be used in 100W +100W Stereo or 200W Woofer Applications. The design is broadly divided into four main stages:
    1. Single-Phase Synchronous Boost Converter using the LM5122 controller IC.  The design accepts an input voltage of (...)
    document-generic Schematic document-generic User guide
    REFERENCE DESIGNS Download
    Motherboard/controller for the AMC1210
    TIDA-RESOLVER-APPLICATIONS-REFERENCE-DESIGN This reference design is a complete solution for resolver applications and part of a modular system for evaluating TI delta-sigma modulators. The software included allows use of the AMC1210 in a variety of configurations for resolver and current shunt applications and features a data-export utility (...)
    document-generic Schematic document-generic User guide

    CAD/CAE symbols

    Package Pins Download
    HVSSOP (DGN) 8 View options
    SOIC (D) 8 View options

    Ordering & quality

    Support & training

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