SoundPlus™ Audio Operational Amplifier with Low Distortion, Low Noise and Precision
Product details
Parameters
Package | Pins | Size
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
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.
Technical documentation
| Type | Title | Date | |
|---|---|---|---|
| * | Datasheet | OPAx134 SoundPlus™ High Performance Audio Operational Amplifiers datasheet (Rev. A) | Oct. 28, 2015 |
| Technical articles | 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 articles | Achieve big board-size reductions with tiny, precision op amps | Jan. 20, 2017 | |
| Technical articles | 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 articles | 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
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.)
Design tools & simulation
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
- (...)
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
Design files
Design files
-
download TIDEP0038 BOM.zip (253KB) -
download TIDEP0038 Assembly Drawing (Industrial Camera Expansion).pdf (260KB) -
download TIDEP0038 Assembly Drawing (L138 Industrial IO).pdf (617KB) -
download TIDEP0038 CAD Files (Industrial Camera Expansion).zip (4860KB) -
download TIDEP0038 CAD Files (L138 Industrial IO).zip (16814KB)
CAD/CAE symbols
| Package | Pins | Download |
|---|---|---|
| PDIP (P) | 8 | View options |
| SOIC (D) | 8 | View options |
Ordering & quality
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
Support & training
TI E2E™ forums with technical support from TI engineers
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