Texas Instruments RC4580IDR

Overview

RC4580IDR from Texas Instruments is a dual audio operational amplifier optimized for tone control, preamplification, and headphone drive in ±2V to ±18V supply systems. It delivers 0.8μVrms input noise, 12MHz gain-bandwidth product, 5V/μs slew rate, 0.0005% THD at 1kHz, and ±13.5V output swing into 2kΩ - enabling high-fidelity analog signal conditioning in compact audio electronics.

For engineers reviewing the RC4580IDR datasheet, RC4580IDR pinout, RC4580IDR application, or RC4580IDR equivalent, key selection criteria include low-noise audio performance, dual-channel unity-gain stability, wide supply range compatibility, and pin-for-pin interchangeability with legacy audio op-amps including NJM4580, LM833, and NE5532.

Technical Context

The RC4580IDR implements two independent high-slew-rate voltage-feedback op-amps in a single SOIC-8 package, each featuring rail-to-rail input common-mode range (±13.5V) and output swing limited only by load and supply. Its 12MHz GBW supports stable unity-gain operation with minimal phase margin degradation across audio bandwidths.

Internally compensated for unity-gain stability, the device uses bipolar input stages to achieve 0.8μVrms noise density (RIAA-weighted), 110dB CMRR, and 110dB PSRR - critical for rejecting power-supply ripple and common-mode interference in sensitive microphone preamps and active filters.

Key Specifications

Pinout & Package

RC4580IDR is housed in an 8-pin SOIC (D) package measuring 3.9mm × 4.9mm, with standard JEDEC MS-012AC footprint and 1.27mm pitch. The package supports automated assembly and meets Level-1 moisture sensitivity (260°C reflow).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual audio operational amplifier applications.

Compared with NE5532DR and NJM4580D, RC4580IDR offers the best balance of low noise (0.8μVrms), wide GBW (12MHz), and low ICC (6mA) in a single SOIC-8 package - making it optimal for space-constrained, battery-aware, high-fidelity audio signal chains where thermal headroom and PCB real estate are limited.

Availability

RC4580IDR is available at Aetrix Electronics and suitable for audio preamplifiers, active filters, headphone amplifiers, industrial measurement equipment, and tone-control circuits requiring stable component supply across extended temperature ranges (–40°C to +125°C).

Supply support for RC4580IDR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Texas Instruments is a global semiconductor leader specializing in analog and embedded processing technologies, with over 90 years of innovation in precision analog ICs and broad industrial portfolio coverage.

The RC4580IDR belongs to TI's legacy audio op-amp family designed specifically for high-fidelity analog signal conditioning - emphasizing low noise, low distortion, wide supply range, and robust ESD protection for demanding audio and measurement applications.

FAQ

What is the maximum operating supply voltage for RC4580IDR?

The RC4580IDR supports a maximum supply voltage of ±18V, as specified in its Absolute Maximum Ratings. Operation beyond this limit risks permanent damage. For reliable long-term use, TI recommends staying within the Recommended Operating Conditions of ±2V to ±16V. The RC4580IDR maintains full electrical performance across this range, including 0.0005% THD and 12MHz GBW at ±15V, making it suitable for both low-voltage portable devices and high-dynamic-range studio equipment.

Is RC4580IDR pin-compatible with NE5532 and LM833?

Yes, RC4580IDR is pin-and-function compatible with NE5532, LM833, NJM4558/9, and NJM4560/2/5 devices in SOIC-8 packaging. All share identical pin 1 orientation, terminal assignments (1OUT, 1IN–, 1IN+, VCC–, 2IN+, 2IN–, 2OUT, VCC+), and dual-amplifier topology. This allows direct substitution in existing layouts without PCB modification. However, note that RC4580IDR draws less quiescent current (6mA vs 8mA for NE5532), which may affect thermal design margins in high-density assemblies.

What is the input noise performance of RC4580IDR and how is it measured?

The RC4580IDR delivers 0.8μVrms equivalent input noise voltage, measured under RIAA-weighted conditions with RS ≤ 2.2kΩ and a 30kHz low-pass filter - matching industry-standard phono preamp test methodology. This value reflects integrated noise across the audible band and confirms suitability for low-level audio sources. Unlike broadband noise specs, RIAA weighting emphasizes frequencies where human hearing is most sensitive, making RC4580IDR particularly effective in turntable and condenser microphone front-ends where noise visibility matters most.

Does RC4580IDR require external compensation for unity-gain stability?

No, RC4580IDR is internally compensated for unity-gain stability, eliminating the need for external compensation components in standard inverting or noninverting configurations. Its 12MHz gain-bandwidth product and phase margin are designed to ensure stable operation down to AV = +1 without oscillation or ringing. This simplifies design for audio gain blocks, active filters, and buffer stages - reducing bill-of-materials cost and PCB area while maintaining predictable frequency response up to 12MHz.

What thermal considerations apply to RC4580IDR in SOIC-8 packaging?

RC4580IDR in SOIC-8 (D package) has a junction-to-ambient thermal resistance (R_θJA) of 109°C/W under standard JEDEC test conditions. At its maximum recommended supply (±16V) and full output swing, total quiescent current is 9mA, yielding ~0.29W dissipation - resulting in ~32°C junction rise above ambient. To maintain reliability, keep ambient temperature ≤125°C and ensure adequate copper pour or airflow. For continuous high-output operation, consider derating supply voltage or adding thermal relief pads per TI's layout guidelines.