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Texas Instruments RC4558IDRG4
- Part No.:
- RC4558IDRG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
RC4558IDRG4.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,144
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Product details
Overview
RC4558IDRG4 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 serves as a low-noise, low-distortion dual op-amp in AV receiver preamp stages.
For engineers reviewing the RC4558IDRG4 datasheet, RC4558IDRG4 pinout, RC4558IDRG4 application, or RC4558IDRG4 equivalent, key selection criteria include dual-channel matching, wide common-mode input range (±14V), absence of latch-up, internal frequency compensation, and suitability for voltage-follower and noninverting amplifier configurations in consumer audio designs.
Technical Context
The RC4558IDRG4 integrates two independent high-fidelity op-amp cores sharing a single SOIC-8 package. Each channel features internally compensated DC-coupled amplification with rail-to-rail input common-mode range up to ±14V and no latch-up behavior-enabling stable unity-gain buffer operation without external components.
Its 2.2V/μs slew rate, 94dB CMRR, and 830V/mV large-signal open-loop gain support accurate low-frequency signal reproduction and moderate-bandwidth AC coupling. The device maintains matched gain and phase between channels, critical for stereo channel consistency in professional audio mixers and soundbars.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-bandwidth product | 4MHz typical - enables stable closed-loop operation up to 100kHz at gain ≥ 40, suitable for full-range audio preamplification |
| Input voltage noise density | 6.5nV/√Hz at 10kHz - ensures minimal audible hiss in line-level audio paths |
| THD+N | 0.0001% at 1kHz, 3VRMS output - preserves dynamic range and harmonic integrity in high-fidelity playback |
| Output voltage swing | ±14.1V into 10kΩ - supports >28Vpp signal headroom on ±15V rails, reducing clipping risk |
| Common-mode input range | ±14V - allows direct interface with ±12V reference circuits and DC-coupled sensor outputs |
| Supply current (both amps) | 5.6mA typical - enables dual-channel operation within 100mW total power budget at ±15V |
| Slew rate | 2.2V/μs - sustains transient fidelity for music transients up to ~350kHz without slew-induced distortion |
Pinout & Package
RC4558IDRG4 is packaged in an 8-pin SOIC (D) package measuring 4.9mm × 6mm, with gull-wing leads and standard JEDEC MS-012AC footprint. Pin 1 is marked by a beveled corner or dot; orientation follows top-view convention with pin 1 at upper-left.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT1 | Amplifier 1 output - drives downstream stage or feedback network; capable of ±125mA short-circuit current |
| 2 | IN1− | Inverting input of Amp 1 - accepts feedback signals; high-impedance node requiring guarded routing |
| 3 | IN1+ | Noninverting input of Amp 1 - connects to signal source or reference; common-mode range extends to ±14V |
| 4 | VCC− | Negative supply rail - must be decoupled with 0.1μF ceramic capacitor placed ≤2mm from pin |
| 5 | IN2+ | Noninverting input of Amp 2 - electrically isolated from Amp 1 inputs; enables independent dual-channel configuration |
| 6 | IN2− | Inverting input of Amp 2 - used for inverting gain stages or differential receivers; matched to IN1− performance |
| 7 | OUT2 | Amplifier 2 output - shares same drive capability and thermal limits as OUT1; crosstalk attenuation ≥120dB at 10kHz |
| 8 | VCC+ | Positive supply rail - requires local 0.1μF bypass to ground; supports operation up to ±15V (absolute max ±18V) |
Key Features
| Feature | Design Value |
|---|---|
| No external frequency compensation required | Internally compensated for unity-gain stability - eliminates need for external compensation capacitors in most audio gain stages |
| Low distortion and noise | 0.0001% THD+N + 6.5nV/√Hz noise - meets high-end consumer audio SNR and fidelity requirements without post-filtering |
| Gain and phase match between amplifiers | Matched AC response ensures identical frequency-dependent behavior across stereo channels - critical for imaging accuracy |
| Wide common-mode and differential input voltage ranges | ±14V common-mode + ±30V differential - supports direct connection to unbuffered DAC outputs and legacy analog sources |
| No latch-up | CMOS-compatible input stage immunity - prevents catastrophic failure during overvoltage or power sequencing events |
Applications
| AV Receivers | Professional Audio Mixers |
|---|---|
Use Scenario: Dual-channel line-level preamplification and tone control before ADC conversion in multi-zone home theater systems. IC Role / Device Role / Timing Role: Dual op-amp providing matched gain, offset nulling, and active filtering per channel with shared supply rejection. Use Value: Enables simultaneous left/right channel processing with <120dB crosstalk isolation and <0.0002% interchannel THD+N deviation. | Use Scenario: Input buffering and summing amplifier for microphone/line inputs in 16-channel analog mixing consoles. IC Role / Device Role / Timing Role: High-input-impedance voltage follower and inverting summer per channel pair, maintaining signal integrity across gain stages. Use Value: Delivers ±14V output swing into 600Ω loads and supports 0–20kHz bandwidth with <0.0001% distortion at nominal operating levels. |
| Soundbars | Wireless Speakers |
Use Scenario: Stereo headphone driver and bass/treble EQ stage in compact all-in-one soundbar PCBs with space-constrained layouts. IC Role / Device Role / Timing Role: Dual-channel active filter and level-shifting amplifier driving Class AB output stages or integrated DACs. Use Value: Provides 4MHz GBW for sharp filter roll-offs and 2.2V/μs slew rate to preserve transient response in spatial audio rendering. | Use Scenario: Analog input conditioning and speaker protection circuitry in Bluetooth-enabled portable speakers with dual full-range drivers. IC Role / Device Role / Timing Role: Dual op-amp performing DC-blocking, gain adjustment, and clip detection prior to Class D modulation. Use Value: Achieves 0.0001% THD+N at 1kHz while operating from ±12V rails, enabling clean mid-bass reproduction without digital post-processing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual operational amplifier 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 ultralow-noise mic preamps; less optimal for battery-sensitive wireless speakers | Select NE5532DR when THD+N <0.00005% and bandwidth >10MHz are required; RC4558IDRG4 remains preferred for cost-sensitive, thermally constrained audio line stages. |
| LM833N | Lower GBW (15MHz), higher input bias current (800nA vs 500nA typ), same SOIC-8 package and pinout | Compatible drop-in replacement in legacy designs; exhibits higher distortion (0.001%) and reduced PSRR at high frequencies | LM833N may be used where existing layout reuse is mandatory and 0.001% THD+N is acceptable; RC4558IDRG4 offers superior noise and distortion performance in new designs. |
Compared with NE5532DR and LM833N, RC4558IDRG4 provides the best balance of low noise (6.5nV/√Hz), low distortion (0.0001%), and moderate power consumption (5.6mA) for mainstream consumer audio-making it ideal for AV receivers and soundbars where thermal headroom and BOM cost are constrained.
Availability
RC4558IDRG4 is available at Aetrix Electronics and suitable for AV receivers, professional audio mixers, and soundbars requiring stable component supply, long-term lifecycle support, and consistent electrical matching across production batches.
Supply support for RC4558IDRG4 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 expertise in precision amplifiers and audio signal chain solutions.
The RC4558IDRG4 belongs to TI's general-purpose operational amplifier product line, engineered specifically for cost-effective, high-fidelity analog signal conditioning in consumer and professional audio equipment where dual-channel matching and low-noise performance are essential.
FAQ
What is the maximum supply voltage for RC4558IDRG4?
The absolute maximum supply voltage for RC4558IDRG4 is ±18V, but the recommended operating range is ±5V to ±15V. Operation beyond ±15V risks exceeding thermal limits and degrading long-term reliability. At ±15V, RC4558IDRG4 delivers its full specified performance including ±14.1V output swing and 0.0001% THD+N. Exceeding ±18V causes permanent damage per TI's Absolute Maximum Ratings table.
Does RC4558IDRG4 require external compensation capacitors?
No, RC4558IDRG4 does not require external compensation capacitors. It features internal frequency compensation optimized for unity-gain stability across its entire operating range. This eliminates the need for external components in standard noninverting and inverting amplifier configurations, simplifying PCB layout and reducing BOM count. The 4MHz gain-bandwidth product is guaranteed under these conditions per the datasheet's Recommended Operating Conditions section.
What is the input voltage noise specification of RC4558IDRG4?
RC4558IDRG4 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 test conditions (VCC± = ±15V, TA = 25°C, RL = 2kΩ). This low noise floor makes RC4558IDRG4 suitable for line-level audio amplification where residual hiss must remain below audibility thresholds.
Is RC4558IDRG4 pin-compatible with other dual op-amps in SOIC-8 packages?
RC4558IDRG4 uses the industry-standard SOIC-8 pinout defined in TI's datasheet (SLOS073H), with pin 1 = OUT1, pin 2 = IN1−, pin 3 = IN1+, pin 4 = VCC−, pin 5 = IN2+, pin 6 = IN2−, pin 7 = OUT2, pin 8 = VCC+. It is pin-compatible with LM833N and NE5532DR in the same package, though electrical characteristics differ. Always verify supply sequencing, gain configuration, and load drive capability before substitution, as RC4558IDRG4's 2.2V/μs slew rate and 5.6mA supply current differ from those parts.
What is the common-mode rejection ratio (CMRR) of RC4558IDRG4?
The common-mode rejection ratio of RC4558IDRG4 is 94dB typical at 25°C, tested under conditions where (V−) + 3V < VICR < (V+) − 3V. CMRR remains ≥70dB across the full 0°C to 70°C operating temperature range. This high CMRR enables robust rejection of power supply ripple and electromagnetic interference in single-ended input configurations, directly contributing to the 0.0001% THD+N performance observed in audio applications.
RC4558IDRG4 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:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
RC4558IDRG4 FAQ
1.How can I place an order for RC4558IDRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for RC4558IDRG4 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 RC4558IDRG4 reliable?
The price and inventory of RC4558IDRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RC4558IDRG4 is usually 5 days.
3.What payment methods are accepted for RC4558IDRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RC4558IDRG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RC4558IDRG4?
RC4558IDRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RC4558IDRG4 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 RC4558IDRG4?
For technical support, including RC4558IDRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RC4558IDRG4 requirements.
6.How does Aetrix verify that RC4558IDRG4 is sourced from the original manufacturer or authorized distributors?
All RC4558IDRG4 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 RC4558IDRG4 meets industry standards.
7.What is the process for return or replacement of RC4558IDRG4?
All RC4558IDRG4 units undergo pre-shipment inspection (PSI). If there is an issue with RC4558IDRG4, 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 RC4558IDRG4 part is unused and in its original packaging.
Return procedure for RC4558IDRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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