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Texas Instruments RC4558DRG3
- Part No.:
- RC4558DRG3
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
RC4558DRG3.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:9,587
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Product details
Overview
RC4558DRG3 from Texas Instruments is a dual general-purpose operational amplifier designed for audio signal conditioning in bipolar-supply systems. It delivers 4MHz gain-bandwidth product, 6.5nV/√Hz input voltage noise at 10kHz, 0.0001% THD+N at 1kHz, ±14.1V output swing (RL = 10kΩ), and operates across ±5V to ±15V supplies. It is used in AV receivers for preamplifier and tone-control stages.
For engineers reviewing the RC4558DRG3 datasheet, RC4558DRG3 pinout, RC4558DRG3 application, or RC4558DRG3 equivalent, key selection criteria include dual-channel matching, low-noise audio performance, wide common-mode input range (±14V), absence of latch-up, and internal frequency compensation enabling stable unity-gain operation without external components.
Technical Context
The RC4558DRG3 integrates two independent high-fidelity op-amps on a single die with matched gain and phase characteristics. Its internal frequency compensation ensures stability in unity-gain configurations, eliminating need for external compensation networks. The device supports dual-supply operation with rail-compatible common-mode input range extending to within 1V of either supply rail.
It features low distortion (0.0001% THD+N) and low noise (6.5nV/√Hz at 10kHz), making it suitable for line-level audio amplification where signal integrity is critical. Input bias current (80nA typ) and offset voltage (0.3mV typ) are optimized for precision DC-coupled and AC-coupled audio paths without requiring trimming.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-bandwidth product | 4MHz - Enables stable unity-gain buffer or gain-of-10 amplification up to 400kHz. |
| Input voltage noise density | 6.5nV/√Hz at 10kHz - Supports high-fidelity audio amplification with minimal added noise floor. |
| THD+N | 0.0001% at 1kHz - Ensures negligible harmonic distortion in line-level analog signal paths. |
| Output voltage swing | ±14.1V (RL = 10kΩ) - Delivers full dynamic range into typical audio loads without clipping. |
| Common-mode input range | ±14V - Allows direct interface with signals referenced to mid-supply or ground in dual-rail systems. |
| Supply voltage range | ±5V to ±15V - Compatible with standard ±12V and ±15V audio power rails. |
| Slew rate | 2.2V/μs - Supports clean reproduction of 20kHz full-scale sine waves (required: ≥1.26V/μs). |
Pinout & Package
RC4558DRG3 is packaged in an 8-pin SOIC (D package), measuring 4.9mm × 6mm, with gull-wing leads and standard JEDEC MS-012AC footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (1OUT) | Amplifier 1 output | Drives load directly; capable of ±125mA short-circuit current and ±14.1V swing into 10kΩ. |
| 2 (1IN–) | Amplifier 1 inverting input | Accepts feedback network; high input impedance (450kΩ || 0.8pF differential) minimizes loading. |
| 3 (1IN+) | Amplifier 1 noninverting input | High common-mode range (±14V) enables direct connection to biased audio sources. |
| 4 (VCC–) | Negative supply rail | Reference for dual-supply operation; must be connected to system ground or negative rail. |
| 5 (2IN+) | Amplifier 2 noninverting input | Electrically identical to Pin 3; enables matched dual-channel signal processing. |
| 6 (2IN–) | Amplifier 2 inverting input | Supports independent feedback configuration per channel; no crosstalk degradation (120dB @10kHz). |
| 7 (2OUT) | Amplifier 2 output | Independent output stage; gain and phase match ensures stereo channel tracking. |
| 8 (VCC+) | Positive supply rail | Accepts +5V to +15V; bypass capacitor (0.1µF ceramic) required adjacent to pin for noise immunity. |
Key Features
| Feature | Design Value |
|---|---|
| No external frequency compensation required | Internally compensated for unity-gain stability - eliminates risk of oscillation in buffer or gain-of-10 configurations. |
| Low input voltage noise | 6.5nV/√Hz at 10kHz - preserves SNR in microphone preamp and line-input stages without requiring ultra-low-noise discrete front-ends. |
| Matched amplifier pair | Gain and phase matching between channels - enables precise stereo balance and differential signal generation without calibration. |
| Wide common-mode input range | ±14V - allows direct interfacing with signals referenced to VCC/2 or ground in ±15V systems without level-shifting. |
| No latch-up behavior | Immune to input overvoltage-induced latch-up - enhances reliability in consumer audio equipment subject to transient surges. |
Applications
| AV Receivers | Professional Audio Mixers |
|---|---|
Use Scenario: Line-level signal routing, tone control, and preamplification before DAC or power amp stages. IC Role / Device Role / Timing Role: Dual-channel op-amp performing active filtering, bass/treble adjustment, and channel summing. Use Value: Low THD+N (0.0001%) and matched gain ensure consistent stereo imaging and minimal coloration across frequency bands. |
Use Scenario: Channel strip buffering, insert point interfacing, and summing amplifier implementation. IC Role / Device Role / Timing Role: Dual op-amp providing unity-gain isolation and low-noise signal distribution between mixer sections. Use Value: 120dB crosstalk attenuation prevents bleed between adjacent channels during high-gain mixing. |
| Soundbars | Wireless Speakers |
Use Scenario: Integrated audio processing for multi-driver soundbar systems with virtual surround decoding. IC Role / Device Role / Timing Role: Dual op-amp driving left/right channel outputs and feeding DSP-based EQ blocks. Use Value: 4MHz GBW supports wideband equalization up to 20kHz with flat group delay and minimal phase shift. |
Use Scenario: Analog input stage for Bluetooth/Wi-Fi audio receivers handling RCA or 3.5mm auxiliary inputs. IC Role / Device Role / Timing Role: Dual op-amp performing input protection, level shifting, and anti-aliasing filtering prior to ADC. Use Value: ±14.1V output swing accommodates peak-to-peak headroom requirements of 2VRMS consumer line signals. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NE5532DR | Higher slew rate (9V/μs), lower input noise (5nV/√Hz), but higher quiescent current (8mA vs 5.6mA). | Better suited for high-speed active filters and headphone drivers; less optimal for battery-sensitive designs. | Choose NE5532DR when bandwidth and drive capability outweigh power efficiency needs. |
| LM833N | Lower GBW (15MHz), higher THD+N (0.002%), wider supply range (±4V to ±20V), same SOIC-8 package. | More tolerant of supply variation; acceptable for cost-sensitive audio where 0.0001% THD+N is not mandatory. | Choose LM833N for legacy designs requiring drop-in replacement with relaxed distortion specs. |
Compared with NE5532DR and LM833N, RC4558DRG3 offers the best balance of low distortion, low noise, and low power for line-level audio-making it ideal for energy-conscious consumer audio where fidelity must meet THX or Hi-Res Audio certification thresholds.
Availability
RC4558DRG3 is available at Aetrix Electronics and suitable for AV receivers, professional audio mixers, and wireless speakers requiring stable component supply across extended production lifecycles.
Supply support for RC4558DRG3 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 decades of heritage in precision op-amp design and manufacturing.
The RC4558DRG3 belongs to TI's general-purpose operational amplifier product line, engineered specifically for cost-effective, high-fidelity audio signal conditioning in consumer and pro-audio equipment.
FAQ
What is the maximum supply voltage for RC4558DRG3?
The absolute maximum supply voltage for RC4558DRG3 is ±18V, but the recommended operating range is ±5V to ±15V. Operation beyond ±15V risks exceeding thermal limits and degrading long-term reliability. The device achieves optimal THD+N (0.0001%) and output swing (±14.1V) within the ±15V range, as specified in the Electrical Characteristics table of the RC4558DRG3 datasheet.
Does RC4558DRG3 require external compensation capacitors?
No, RC4558DRG3 does not require external compensation capacitors. It is internally frequency-compensated for unity-gain stability, enabling reliable operation in buffer, inverting, and noninverting configurations without added components. This simplifies PCB layout and eliminates tuning steps-confirmed by the "No frequency compensation required" feature and Figure 5-1 (open-loop gain/phase response) in the RC4558DRG3 datasheet.
What is the input voltage noise specification of RC4558DRG3?
RC4558DRG3 has an input voltage noise density of 6.5nV/√Hz at 10kHz and 7nV/√Hz at 1kHz, with 0.38µVPP integrated noise from 0.1Hz to 10Hz. These values are measured under standard conditions (VCC = ±15V, TA = 25°C, RL = 2kΩ) and directly support high-SNR audio applications such as phono preamps and line-level buffers where noise floor is critical to perceived fidelity.
Can RC4558DRG3 operate from a single supply?
Yes, RC4558DRG3 can operate from a single supply, though its common-mode input and output ranges are optimized for dual-supply use. When used with a single +10V to +30V rail, the input must be biased within the common-mode range (typically 3V above VCC– and 3V below VCC+), and output swing will be limited accordingly. The RC4558DRG3 datasheet confirms this capability in Section 6.4 (Device Functional Modes) and Figure 5-16 (output swing vs. supply voltage).
What is the crosstalk attenuation between channels in RC4558DRG3?
RC4558DRG3 provides 120dB crosstalk attenuation between its two amplifier channels at 10kHz with RS = 1kΩ and AVD = 1V/V. This value is specified in the Electrical Characteristics table and ensures minimal signal leakage in stereo or dual-path applications such as balanced line drivers or differential receiver front-ends-critical for maintaining channel separation in professional audio mixers and soundbars.
RC4558DRG3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- Differential
- Slew Rate:
- 1.7V/µs
- Gain Bandwidth Product:
- 3 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 150 nA
- Voltage - Input Offset:
- 500 µV
- Current - Supply:
- 2.5mA (x2 Channels)
- Current - Output / Channel:
- 10 mA
- Voltage - Supply Span (Min):
- 10 V
- Voltage - Supply Span (Max):
- 30 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
RC4558DRG3 FAQ
1.How can I place an order for RC4558DRG3 through Aetrix?
Please submit a Request for Quotation (RFQ) for RC4558DRG3 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for RC4558DRG3 reliable?
The price and inventory of RC4558DRG3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RC4558DRG3 is usually 5 days.
3.What payment methods are accepted for RC4558DRG3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RC4558DRG3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RC4558DRG3?
RC4558DRG3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RC4558DRG3 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for RC4558DRG3?
For technical support, including RC4558DRG3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RC4558DRG3 requirements.
6.How does Aetrix verify that RC4558DRG3 is sourced from the original manufacturer or authorized distributors?
All RC4558DRG3 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that RC4558DRG3 meets industry standards.
7.What is the process for return or replacement of RC4558DRG3?
All RC4558DRG3 units undergo pre-shipment inspection (PSI). If there is an issue with RC4558DRG3, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The RC4558DRG3 part is unused and in its original packaging.
Return procedure for RC4558DRG3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
RC4558DRG3 Tags
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LM358DT
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LM358DR
Texas Instruments
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LM2904DR
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LM2902DR
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LM358P
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