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OPA2134

ACTIVE
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SoundPlus™ Audio Operational Amplifier with Low Distortion, Low Noise and Precision

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SoundPlus™ Audio Operational Amplifier with Low Distortion, Low Noise and Precision

OPA2134

ACTIVE
Data sheet Order now

Product details

Parameters

Number of channels (#) 2 Total supply voltage (Min) (+5V=5, +/-5V=10) 5 Total supply voltage (Max) (+5V=5, +/-5V=10) 36 GBW (Typ) (MHz) 8 Slew rate (Typ) (V/us) 20 Rail-to-rail No Vos (offset voltage @ 25 C) (Max) (mV) 2 Iq per channel (Typ) (mA) 4 Vn at 1 kHz (Typ) (nV/rtHz) 8 Features Burr-Brown™ Audio THD + N @ 1 kHz (Typ) (%) 0.00008 Rating Catalog Operating temperature range (C) -40 to 85 Output current (Typ) (mA) 40 Architecture FET CMRR (Typ) (dB) 100 Input bias current (Max) (pA) 100 open-in-new Find other Audio op amps

Package | Pins | Size

PDIP (P) 8 93 mm² 9.81 x 9.43 SOIC (D) 8 19 mm² 3.91 x 4.9 SOIC (D) 8 19 mm² 4.9 x 3.9 open-in-new Find other Audio op amps

Features

  • Superior Sound Quality
  • Ultra Low Distortion: 0.00008%
  • Low Noise: 8 nV/√Hz
  • True FET-Input: IB = 5pA
  • High Speed:
    • Slew Rate: 20 V/µs
    • Bandwidth: 8 MHz
  • High Open-Loop Gain: 120 dB (600 Ω)
  • Wide Supply Range: ±2.5 V to ±18 V
  • Single, Dual, and Quad Versions
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Description

The OPA134 series are ultra-low distortion, low-noise operational amplifiers fully specified for audio applications. A true FET input stage is incorporated to provide superior sound quality and speed for exceptional audio performance. This, in combination with high output drive capability and excellent DC performance, allows for use in a wide variety of demanding applications. In addition, the OPA134 has a wide output swing, to within 1 V of the rails, allowing increased headroom and making it ideal for use in any audio circuit.

The OPA134 SoundPlus™ audio operational amplifiers are easy to use and free from phase-inversion and the overload problems often found in common FET-input operational amplifiers. They can be operated from ±2.5-V to ±18-V power supplies. Input cascode circuitry provides excellent common-mode rejection and maintains low input bias current over its wide input voltage range, minimizing distortion. OPA134 series operational amplifiers are unity-gain stable and provide excellent dynamic behavior over a wide range of load conditions, including high load capacitance. The dual and quad versions feature completely independent circuitry for lowest crosstalk and freedom from interaction, even when overdriven or overloaded.

Single and dual versions are available in 8-pin DIP and SO-8 surface-mount packages in standard configurations. The quad is available in 14-pin DIP and SO-14 surface mount packages. All are specified for –40°C to 85°C operation. A SPICE macromodel is available for design analysis.

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Same functionality and pinout but is not an equivalent to the compared device:
OPA1656 ACTIVE SoundPlus™ ultra-low noise and distortion, Burr-Brown™ audio operational amplifier For higher bandwidth (53MHz), lower noise (4.3nV/√Hz), and higher output drive (100mA) see the OPA1656

Technical documentation

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Type Title Date
* Datasheet OPAx134 SoundPlus™ High Performance Audio Operational Amplifiers datasheet (Rev. A) Oct. 28, 2015
Technical article No headroom, no problem: buffering and filtering an audio signal chain in low-voltage systems Apr. 11, 2019
E-book The Signal e-book: A compendium of blog posts on op amp design topics Mar. 28, 2017
Technical article Achieve big board-size reductions with tiny, precision op amps Jan. 20, 2017
Technical article Amp up your cans: Is your op amp stable? (Part 2) Jan. 22, 2016
Application note Stabilizing difference amplifiers for headphone applications Apr. 28, 2015
Application note Reducing distortion from CMOS analog switches Jan. 29, 2015
Technical article Stress-induced outbursts: Microphonics in ceramic capacitors (Part 2) Dec. 23, 2014
Application note Distortion and source impedance in JFET-input op amps Oct. 24, 2014
Application note Remove the DC Portion of Signals with the ADS7817 Sep. 27, 2000

Design & development

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

Hardware development

DAUGHTER CARD Download
document-generic User guide
499
Description

The K2G audio daughter card is designed to work in conjunction with the K2G general-purpose EVM (EVMK2G) or EVMK2GX and the EVMK2G or EVMK2GX is required for audio daughter card operation.  The daughter card allows users to develop multichannel audio applications such as A/V receivers (...)

Features
  • Audio expansion compatible with the K2G general-purpose EVM
  • Eight channels of analog input
  • Sixteen channels of analog output
  • S/PDIF input (optical or coaxial)
  • S/PDIF output (coaxial)
  • I2S header for external I/O (HDMI, etc.)
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Design tools & simulation

SIMULATION MODEL Download
SBOC185E.TSC (307 KB) - TINA-TI Reference Design
SIMULATION MODEL Download
SBOM042D.ZIP (14 KB) - PSpice Model
SIMULATION MODEL Download
SBOM264E.ZIP (9 KB) - TINA-TI Spice Model
SIMULATION TOOL 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
  • (...)
View details
SIMULATION TOOL 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 TOOL 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
  • (...)
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Reference designs

REFERENCE DESIGNS Download
Software Defined Radio (SDR) OMAPL-138-based Hardware/Software Reference Design
TIDEP0040 — Software Defined Radio (SDR) is a popular application within the wireless infrastructure market.  This hardware reference design, leveraging the real time signal processing of the TI DSP and its Universal Parallel Port (uPP), along with TI ADC and DAC, offers SDR algorithm developers a quick (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Vision Analytics OMAPL-138-based Hardware/Software Reference Design
TIDEP0038 — Vision analytics is a critical function for many industrial automated applications including machine vision, inspection automation, surveillance and image processing.  This hardware/software design kit is optimized for vision analytic based applications and provides the all of hardware design (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
PDIP (P) 8 View options
SOIC (D) 8 View options

Ordering & quality

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  • Ongoing reliability monitoring

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