OPA2131UA

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Dual Low Noise Amplifier Op Amp ±18V 8-Pin SOIC Tube

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Quality Assurance

All parts procured from our supply chain network undergo a rigorous incoming inspection process. This meticulous inspection ensures that the parts received by our customers are authentic and meet the required standards. Additionally, we maintain detailed records of these inspections to ensure transparency and traceability throughout the supply chain.

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Certification

We have successfully obtained various certification standards and have established our own professional testing laboratory. This ensures that every product we supply to our customers meets the highest quality standards. We adhere to strict testing protocols to maintain the consistency and accuracy of our products. To ensure that our products are original and genuine, we also collaborate with reputable third-party testing facilities to conduct rigorous quality testing. Our commitment to quality extends to meeting industry, legal, regulatory, and ISO 9001:2015 requirements.

Shipping & Payment

Shipping & Payment

About Shipping

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Service & Packaging

Service & Packaging

About After Sales Service

All Parts Extended Quality Guarantee

Initiate the application within 90 days from the shipment date.

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OPA2131UA DataSheet

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Current price plan is under preparation. Please contact our customer service team for the latest pricing information. Thank you for your understanding and support!

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Rapid Quote

Please submit RFQ for OPA2131UA or email to us: Email: [email protected], we will contact you in 12 hours.

OPA2131UA Details

The OPA2131UA is a dual op amp from Texas Instruments, designed for high-performance applications requiring low noise and distortion characteristics. This device features a wide supply range, excellent capacitive load drive, and single, dual, or quad versions, making it suitable for various audio equipment and measuring instruments.

Key Features

  • FET INPUT: IB = 50pA max for low input current
  • LOW OFFSET VOLTAGE: 750uV max for reduced noise and distortion
  • WIDE SUPPLY RANGE: ±4.5V to ±18V for flexibility in design
  • SLEW RATE: 10V/us for fast response times
  • WIDE BANDWIDTH: 4MHz for high-frequency applications
  • EXCELLENT CAPACITIVE LOAD DRIVE: For driving capacitive loads with minimal distortion

Application

  • Audio Equipment: Suitable for professional audio mixers, headphones, and preamplifiers requiring low noise and distortion characteristics
  • Measuring Instruments: Used in various measuring instruments due to its low noise and distortion characteristics

Where to Use

The OPA2131UA is suitable for a wide range of applications, including audio equipment, measuring instruments, and other devices requiring high-performance op amps.

How to Use

To use the OPA2131UA, ensure proper power supply connections to VCC and GND. Use the device's input and output pins according to the datasheet for optimal performance. For detailed usage instructions, refer to the datasheet.

Application Circuit

The application circuit diagram for the OPA2131UA illustrates how to connect the op amp in various applications, including audio equipment and measuring instruments. It includes connections for power supply, ground, and input/output signals, ensuring proper operation and optimal performance.

(Tip: For detailed circuit diagram connections and usage guide, refer to the datasheet.)

Equivalents

  • OPA2134: A similar dual op amp from Texas Instruments offering comparable features and performance.

Complementary

The OPA2131UA can be complemented by other op amps from Texas Instruments, such as the OPA2134 or OPA2340, which offer additional features and specifications suitable for various applications.

When selecting complementary devices, ensure that their features and specifications align with your specific application requirements for optimal performance and compatibility.

Frequently Asked Questions

Q: What is the maximum bandwidth supported by the OPA2131UA?

A: The OPA2131UA supports a wide bandwidth of 4MHz. For more details, refer to the datasheet for specific operating conditions and limitations.

Q: Can the OPA2131UA be used in audio equipment applications?

A: Yes, the OPA2131UA is suitable for various audio equipment applications, including professional audio mixers, headphones, and preamplifiers, due to its low noise and distortion characteristics.

Specifications

The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.

Number of channels 2 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 36
Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 9 Vos (offset voltage at 25°C) (max) (mV) 1
GBW (typ) (MHz) 4 Slew rate (typ) (V/µs) 10
Rail-to-rail No Offset drift (typ) (µV/°C) 2
Iq per channel (typ) (mA) 1.5 Vn at 1 kHz (typ) (nV√Hz) 15
CMRR (typ) (dB) 80 Rating Catalog
Operating temperature range (°C) -55 to 125 Input bias current (max) (pA) 50
Iout (typ) (A) 0.025 Architecture FET
Input common mode headroom (to negative supply) (typ) (V) 3 Input common mode headroom (to positive supply) (typ) (V) -1
Output swing headroom (to negative supply) (typ) (V) 2.5 Output swing headroom (to positive supply) (typ) (V) -2.5
THD + N at 1 kHz (typ) (%) 0.0008

Datasheet PDF

Datasheets record the features, absolute maximum ratings, applications and more of the device, which benefit a lot as an overall guide to the specific application of the part.

Preliminary Specification OPA2131UA PDF Download

FAQs

What is OPA2131UA?

The OPA2131UA is a high-performance, precision audio operational amplifier manufactured by Texas Instruments. It is designed for audio applications that require high fidelity, low distortion, and low noise performance, such as audiophile equipment, audio mixers, and professional audio systems.

How Does OPA2131UA Work?

The OPA2131UA operates as a precision operational amplifier specifically optimized for audio applications. It provides low distortion and high bandwidth to accurately amplify audio signals with minimal noise interference. The amplifier is designed to deliver high-quality sound reproduction in audio circuits with precision and stability.

How Many Pins does OPA2131UA have and What are the Functions of the Pinout Configuration?

The OPA2131UA is housed in an 8-pin SOIC (Small Outline Integrated Circuit) package. The pinout configuration includes:

  • V+: Positive power supply pin.
  • V-: Negative power supply pin.
  • IN+: Non-inverting input pin.
  • IN-: Inverting input pin.
  • OUT: Output pin.
  • NC (Not Connected): No connection pin.

What are the Pros and Cons of OPA2131UA?

Pros:

  • High Fidelity: Delivers high-quality audio reproduction with low distortion.
  • Low Noise: Provides a quiet operational environment for audio circuits.
  • Wide Bandwidth: Offers high bandwidth suitable for audio signal processing.
  • Precision: Ensures accurate and stable amplification of audio signals.
  • Compact Package: The 8-pin SOIC package is space-efficient for compact designs.

Cons:

  • Cost: High-performance audio amplifiers like the OPA2131UA may be more expensive than standard alternatives.
  • Power Consumption: May consume more power compared to lower-performance audio amplifiers.
  • External Components: Additional external components may be required for specific audio circuit configurations.

Are There Any Equivalents/Alternatives to OPA2131UA for Recommendation?

  • The OPA2134 from Texas Instruments is a similar precision audio amplifier with slightly different specifications.
  • Alternatives to the OPA2131UA include the AD823 from Analog Devices and the LM4562 from Texas Instruments.

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