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Texas Instruments RC4558IDGKRG4
- Part No.:
- RC4558IDGKRG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
RC4558IDGKRG4.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,394
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Product details
Overview
RC4558IDGKRG4 from Texas Instruments is a dual general-purpose operational amplifier in an 8-pin VSSOP package, featuring 4MHz gain-bandwidth product, 6.5nV/√Hz input voltage noise at 10kHz, 0.0001% THD+N at 1kHz, ±15V supply operation, and internal frequency compensation for unity-gain stability - deployed in professional audio mixers and AV receivers.
For engineers reviewing the RC4558IDGKRG4 datasheet, RC4558IDGKRG4 pinout, RC4558IDGKRG4 application, or RC4558IDGKRG4 equivalent, key selection criteria include dual-channel matching, low-noise audio signal conditioning, rail-compatible common-mode input range (±14V), and thermal performance in compact VSSOP layouts.
Technical Context
The RC4558IDGKRG4 integrates two independent high-fidelity op-amps with matched gain and phase characteristics, enabling stereo signal paths or differential configurations without external compensation. Its wide common-mode input range (±14V) and latch-up immunity support robust voltage-follower and active filter topologies.
Designed for dual-supply operation (±5V to ±15V), it delivers 2.2V/μs slew rate and 94dB CMRR, with crosstalk attenuation exceeding 120dB at 10kHz - critical for minimizing inter-channel interference in multi-amplifier audio stages.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-bandwidth product | 4MHz typical - enables stable unity-gain operation up to 4MHz without external compensation. |
| Input voltage noise density | 6.5nV/√Hz at 10kHz - supports low-noise preamplification in line-level audio circuits. |
| THD+N | 0.0001% at 1kHz, 3VRMS output - ensures high-fidelity reproduction in consumer and pro-audio systems. |
| Common-mode input range | ±14V at ±15V supply - allows direct interfacing with signals near supply rails in single-ended configurations. |
| Slew rate | 2.2V/μs - sustains clean transient response for audio waveforms up to ~350kHz full-power bandwidth. |
| Supply current (both amps) | 5.6mA typical at ±15V - balances performance and power efficiency in space-constrained PCBs. |
| Crosstalk attenuation | 120dB at 10kHz - preserves channel separation in dual-channel applications like stereo mixers. |
Pinout & Package
RC4558IDGKRG4 is housed in an 8-pin VSSOP (DGK) package measuring 3mm × 4.9mm, optimized for high-density audio PCB layouts with thermal resistance RθJA = 164.8°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Amplifier 1 output | Low-impedance buffered output driving loads ≥2kΩ; requires local bypass capacitor for stability. |
| 2 | Amplifier 1 inverting input | Inverts input signal with gain set by external feedback network; sensitive to layout-induced noise. |
| 3 | Amplifier 1 noninverting input | High-impedance input accepting common-mode voltages up to ±14V; must be shielded from supply traces. |
| 4 | Negative supply (VCC–) | Reference return for dual-supply operation; connects to system ground or negative rail in split-rail designs. |
| 5 | Amplifier 2 noninverting input | Independent high-Z input for second channel; matches offset and noise performance of Pin 3. |
| 6 | Amplifier 2 inverting input | Second inverting node with identical AC/DC specs to Pin 2; enables matched dual-channel feedback design. |
| 7 | Amplifier 2 output | Electrically isolated output stage; crosstalk < –120dB prevents coupling into adjacent channel. |
| 8 | Positive supply (VCC+) | Power rail connection requiring 0.1μF ceramic bypass capacitor placed ≤2mm from pin per layout guidelines. |
Key Features
| Feature | Design Value |
|---|---|
| Internal frequency compensation | Enables stable unity-gain operation without external components - reduces BOM count and layout complexity. |
| Gain and phase match between amplifiers | Ensures consistent frequency response and timing alignment across stereo or differential signal paths. |
| No latch-up behavior | Permits safe operation in voltage-follower configurations with inputs driven beyond supply rails. |
| Wide supply voltage range | Operates from ±5V to ±15V - supports legacy 15V audio rails and modern low-voltage designs. |
| Low distortion and noise | 0.0001% THD+N + 6.5nV/√Hz noise enables transparent signal amplification in critical audio stages. |
Applications
| Professional Audio Mixer | AV Receiver Preamp Stage |
|---|---|
Use Scenario: Dual-channel signal buffering and level-shifting in analog mixing consoles before ADC conversion. IC Role / Device Role / Timing Role: Dual op-amp providing matched gain, low-noise amplification, and channel isolation for left/right stereo paths. Use Value: 120dB crosstalk attenuation and 0.0001% THD+N preserve stereo imaging integrity and dynamic range fidelity. |
Use Scenario: Input stage amplification and impedance transformation for phono, line, and DAC outputs in home theater receivers. IC Role / Device Role / Timing Role: General-purpose dual op-amp handling multiple analog sources with rail-compatible input swing. Use Value: ±14V common-mode input range accommodates varying source levels without clipping or DC bias adjustment. |
| Soundbar Analog Signal Chain | Wireless Speaker Audio Processing |
Use Scenario: Multi-band EQ and tone control circuitry in compact soundbar PCBs where board space is constrained. IC Role / Device Role / Timing Role: Dual amplifier implementing active filters and volume control with matched channel response. Use Value: VSSOP package (3mm × 4.9mm) enables dense placement; 4MHz GBW supports 20kHz audio bandwidth with margin. |
Use Scenario: Post-DAC analog reconstruction and headphone driver interface in Bluetooth-enabled portable speakers. IC Role / Device Role / Timing Role: Dual op-amp performing I/V conversion, low-pass filtering, and output buffering for Class AB amplifiers. Use Value: Low 6.5nV/√Hz noise floor maintains SNR >110dB; 2.2V/μs slew rate prevents slew-induced distortion on transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual general-purpose op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NE5532DR | Higher 10MHz GBW, 3.5V/μs slew rate, but higher 5mA supply current per amp and no VSSOP option. | Better suited for high-speed active crossovers; less optimal for space-constrained soundbars. | Select NE5532DR when bandwidth >5MHz or drive capability >30mA is required. |
| LM833N | Same 4MHz GBW and 0.0001% THD+N, but only available in PDIP (P) and SOIC (D); higher 7.5nV/√Hz noise. | Preferred for through-hole prototyping or legacy DIP-based audio equipment. | Choose LM833N for cost-sensitive through-hole builds where VSSOP footprint is not needed. |
Compared with NE5532DR and LM833N, RC4558IDGKRG4 offers the only VSSOP packaging among these three, delivering identical audio-grade THD+N and GBW while reducing PCB area by 45% versus SOIC and enabling tighter thermal management in surface-mount audio modules.
Availability
RC4558IDGKRG4 is available at Aetrix Electronics and suitable for professional audio mixers, AV receivers, and soundbars requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for RC4558IDGKRG4 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 50 years of op-amp innovation and broad automotive, industrial, and audio portfolio coverage.
RC4558IDGKRG4 belongs to TI's legacy general-purpose op-amp family designed specifically for cost-sensitive, high-reliability audio signal conditioning - balancing low noise, low distortion, and robust DC precision in dual-channel configurations.
FAQ
What is the maximum supply voltage for RC4558IDGKRG4?
The absolute maximum supply voltage for RC4558IDGKRG4 is ±18V, but recommended operating conditions specify ±5V to ±15V. Operation at ±18V risks permanent damage per TI's Absolute Maximum Ratings. For reliable long-term use in audio applications, ±15V is the highest validated supply - delivering full 0.0001% THD+N and ±14.1V output swing into 10kΩ loads.
Does RC4558IDGKRG4 require external frequency compensation?
No, RC4558IDGKRG4 features internal frequency compensation, enabling stable unity-gain operation without external capacitors or resistors. This simplifies design in noninverting buffers, active filters, and gain stages - confirmed by TI's "no frequency compensation required" feature and stable open-loop gain-phase response up to 4MHz in the datasheet.
What is the input voltage noise specification of RC4558IDGKRG4?
RC4558IDGKRG4 has a typical input voltage noise density of 6.5nV/√Hz at 10kHz and 7nV/√Hz at 1kHz. At 0.1Hz–10Hz, it exhibits 0.38µVPP flicker noise - making it suitable for low-frequency audio preamplification where noise integrity is critical, such as phono stage inputs or microphone gain blocks.
Can RC4558IDGKRG4 operate from a single supply?
Yes, RC4558IDGKRG4 supports single-supply operation, though its specified common-mode input range and output swing are optimized for dual supplies (±5V to ±15V). When used with a single 30V rail, the input must remain within 3V of either rail, and output swing is reduced - TI recommends proper biasing and decoupling per Section 7.3 of the datasheet.
What is the thermal resistance of RC4558IDGKRG4 in its VSSOP package?
RC4558IDGKRG4 in the DGK (VSSOP-8) package has a junction-to-ambient thermal resistance (RθJA) of 164.8°C/W. This value assumes standard JEDEC 2-layer board conditions; actual board-level thermal performance depends on copper area, airflow, and nearby heat sources - TI advises using thermal vias and ground planes to improve dissipation in high-density audio PCBs.
RC4558IDGKRG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm 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:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-VSSOP
RC4558IDGKRG4 FAQ
1.How can I place an order for RC4558IDGKRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for RC4558IDGKRG4 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 RC4558IDGKRG4 reliable?
The price and inventory of RC4558IDGKRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RC4558IDGKRG4 is usually 5 days.
3.What payment methods are accepted for RC4558IDGKRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RC4558IDGKRG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RC4558IDGKRG4?
RC4558IDGKRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RC4558IDGKRG4 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 RC4558IDGKRG4?
For technical support, including RC4558IDGKRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RC4558IDGKRG4 requirements.
6.How does Aetrix verify that RC4558IDGKRG4 is sourced from the original manufacturer or authorized distributors?
All RC4558IDGKRG4 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 RC4558IDGKRG4 meets industry standards.
7.What is the process for return or replacement of RC4558IDGKRG4?
All RC4558IDGKRG4 units undergo pre-shipment inspection (PSI). If there is an issue with RC4558IDGKRG4, 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 RC4558IDGKRG4 part is unused and in its original packaging.
Return procedure for RC4558IDGKRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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