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OPA134

ACTIVO

Amp. op. de audio con entradas FET simple SoundPlus™ de 8 MHz, 50 pA, de alto rendimiento

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OPA141 ACTIVO Amplificador operacional JFET simple de 10 MHz, de bajo ruido y con alimentación simple Lower voltage noise (6.5 nV/√Hz) and lower input bias current (2pA, typ) with slightly higher offset voltage (3.5mV, max)

Detalles del producto

Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 5 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 36 GBW (typ) (MHz) 8 Slew rate (typ) (V/µs) 20 Rail-to-rail No Vos (offset voltage at 25°C) (max) (mV) 2 Iq per channel (typ) (mA) 4 Vn at 1 kHz (typ) (nV√Hz) 8 Features Burr-Brown™ Audio, Premium Sound THD + N at 1 kHz (typ) (%) 0.00008 Rating Catalog Operating temperature range (°C) -40 to 85 Iout (typ) (A) 0.04 Architecture FET CMRR (typ) (dB) 100 Input bias current (max) (pA) 100
Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 5 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 36 GBW (typ) (MHz) 8 Slew rate (typ) (V/µs) 20 Rail-to-rail No Vos (offset voltage at 25°C) (max) (mV) 2 Iq per channel (typ) (mA) 4 Vn at 1 kHz (typ) (nV√Hz) 8 Features Burr-Brown™ Audio, Premium Sound THD + N at 1 kHz (typ) (%) 0.00008 Rating Catalog Operating temperature range (°C) -40 to 85 Iout (typ) (A) 0.04 Architecture FET CMRR (typ) (dB) 100 Input bias current (max) (pA) 100
SOIC (D) 8 29.4 mm² (4.9 mm × 6 mm) PDIP (P) 8 92.5083 mm² (9.81 mm × 9.43 mm)
  • Excellent sound quality
  • Ultra-low distortion: 0.00008%
  • Low noise: 8nV/√Hz
  • True FET-input: IB = 5pA
  • High speed:
    • Slew rate: 20V/µs
    • Bandwidth: 8MHz
  • High open-loop gain: 120dB (2kΩ)
  • Wide supply range: ±2.5V to ±18V
  • Single, dual, and quad versions
  • Excellent sound quality
  • Ultra-low distortion: 0.00008%
  • Low noise: 8nV/√Hz
  • True FET-input: IB = 5pA
  • High speed:
    • Slew rate: 20V/µs
    • Bandwidth: 8MHz
  • High open-loop gain: 120dB (2kΩ)
  • Wide supply range: ±2.5V to ±18V
  • Single, dual, and quad versions

The OPA134, OPA2134, and OPA4134 (OPAx134) series are ultra-low distortion, low-noise operational amplifiers fully specified for audio applications. A true FET input stage is incorporated to provide excellent sound quality and speed for exceptional audio performance. This feature, in combination with high output drive capability and excellent dc performance, allows for use in a wide variety of demanding applications. In addition, the OPAx134 series has a wide output swing, to within 1V of the rails, allowing increased headroom and making these devices an excellent choice for use in any audio circuit.

The OPAx134 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. The devices can be operated from ±2.5V to ±18V power supplies. Input cascode circuitry provides excellent common-mode rejection and maintains low input bias current over the wide input voltage range, minimizing distortion. The OPAx134 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 SO-14 surface-mount package. All are specified for –40°C to +85°C operation. A SPICE macromodel is available for design analysis.

The OPA134, OPA2134, and OPA4134 (OPAx134) series are ultra-low distortion, low-noise operational amplifiers fully specified for audio applications. A true FET input stage is incorporated to provide excellent sound quality and speed for exceptional audio performance. This feature, in combination with high output drive capability and excellent dc performance, allows for use in a wide variety of demanding applications. In addition, the OPAx134 series has a wide output swing, to within 1V of the rails, allowing increased headroom and making these devices an excellent choice for use in any audio circuit.

The OPAx134 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. The devices can be operated from ±2.5V to ±18V power supplies. Input cascode circuitry provides excellent common-mode rejection and maintains low input bias current over the wide input voltage range, minimizing distortion. The OPAx134 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 SO-14 surface-mount package. All are specified for –40°C to +85°C operation. A SPICE macromodel is available for design analysis.

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Documentación técnica

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Documentación principal Tipo Título Opciones de formato Descargar la versión más reciente en inglés Fecha
* Hoja de datos OPAx134 High-Performance, SoundPlus™ Audio Operational Amplifiers datasheet (Rev. B) PDF | HTML 19/11/2024
Application brief Understanding Op Amp Noise in Audio Circuits PDF | HTML 14/06/2021
Libro electrónico The Signal e-book: A compendium of blog posts on op amp design topics PDF | HTML 28/03/2017
Nota sobre la aplicación Precision Absolute Value Circuits 2/10/2000
Nota sobre la aplicación Remove the DC Portion of Signals with the ADS7817 27/09/2000

Diseño y desarrollo

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