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Texas Instruments RC4559D
- Part No.:
- RC4559D
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
RC4559D.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:767
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Product details
Overview
RC4559D from Texas Instruments is a dual high-performance operational amplifier designed for low-noise audio preamplifiers and signal conditioners. It delivers matched gain/offset between amplifiers, unity-gain bandwidth ≥3 MHz, slew rate ≥1.5 V/µs, input offset voltage ≤6 mV at 25°C, and operates across 0°C to 70°C.
For engineers reviewing the RC4559D datasheet, RC4559D pinout, RC4559D application, or RC4559D equivalent, key selection criteria include its dual-channel precision performance, SOIC-8 package compatibility, rail-to-rail input voltage range (±13 V), low 2 µV/Hz noise floor (20 Hz–20 kHz), and absence of required external frequency compensation.
Technical Context
The RC4559D integrates two independent high-slew-rate op-amps in a single SOIC-8 package with internally matched transistor pairs ensuring tight VIO and IIO tracking. Its wide common-mode input voltage range (±13 V) and latch-up immunity support robust operation in bipolar supply systems (±15 V).
It features no internal frequency compensation-enabling stable unity-gain operation without external capacitors-and delivers 90 dB crosstalk attenuation at 10 kHz, confirming true dual-amplifier isolation suitable for stereo or differential signal paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Unity-gain bandwidth | ≥3 MHz - enables stable closed-loop operation at DC to audio frequencies without compensation |
| Slew rate | ≥1.5 V/µs - supports clean 20 kHz full-scale output swing into 2 kΩ loads |
| Input offset voltage | ≤6 mV at 25°C - ensures minimal DC error in precision gain stages |
| Equivalent input noise | ≤2 µV/√Hz (20 Hz–20 kHz) - critical for microphone preamp and sensor signal conditioning |
| Common-mode input range | ±13 V - allows direct interfacing with ±15 V supplies while maintaining linearity |
| Supply current (both amps) | 4–6.6 mA - balances performance and power efficiency in battery-adjacent analog stages |
| Crosstalk attenuation | ≥90 dB at 10 kHz - prevents inter-channel coupling in stereo or multi-path designs |
Pinout & Package
RC4559D is housed in an 8-pin SOIC (Small Outline Integrated Circuit) package per JEDEC MS-012 variation AA, with 1.27 mm lead pitch, 3.91 mm body width, and 1.75 mm max height. RoHS-compliant, green (low-halogen), NIPDAU finish, MSL Level-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting input, Amp #1 | Accepts feedback network for standard inverting configuration |
| 2 | Non-inverting input, Amp #1 | Reference point for single-ended or differential input signals |
| 3 | Output, Amp #1 | Drives loads ≥2 kΩ with ±10 V swing; supports 32 kHz full-power bandwidth |
| 4 | VCC− | Negative supply rail connection; must be referenced to system ground midpoint |
| 5 | Inverting input, Amp #2 | Independent channel input; electrically isolated from Amp #1 per matching specs |
| 6 | Non-inverting input, Amp #2 | Enables dual-channel parallel or interleaved signal processing |
| 7 | Output, Amp #2 | Matches Amp #1 output drive capability and noise performance |
| 8 | VCC+ | Positive supply rail; supports up to ±15 V operation with thermal derating |
Key Features
| Feature | Design Value |
|---|---|
| Matched gain and offset | ±0.2 mV VIO and ±7.5 nA IIO tracking between amplifiers - reduces calibration burden in dual-path instrumentation |
| No external compensation | Internally compensated for unity-gain stability - eliminates capacitor placement errors and board space |
| Wide common-mode range | ±13 V input range with ±15 V supplies - accommodates large-signal transients without clipping |
| Latch-up immunity | Guaranteed no latch-up under overvoltage or ESD stress - improves field reliability in unshielded audio interfaces |
| Low power consumption | ≤6.6 mA total supply current - enables use in thermally constrained enclosures or multi-channel systems |
Applications
| Audio Preamplifier | Instrumentation Signal Conditioning |
|---|---|
Use Scenario: Low-noise amplification of dynamic microphone outputs before ADC sampling in studio-grade audio interfaces. IC Role / Device Role / Timing Role: Dual-channel voltage amplifier providing 40 dB gain with <2 µV/√Hz input-referred noise. Use Value: Preserves signal integrity across 20 Hz–20 kHz band; matched channels enable stereo coherence without post-processing alignment. | Use Scenario: Amplifying millivolt-level sensor outputs (e.g., strain gauges, thermocouples) in industrial data acquisition modules. IC Role / Device Role / Timing Role: Precision dual op-amp configured as differential input stage and reference buffer. Use Value: ±0.2 mV inter-amplifier VIO match minimizes common-mode error; ±13 V input range accepts raw sensor excitation voltages. |
| Active Filter Stage | DC-Coupled Oscilloscope Front-End |
Use Scenario: Second-order Sallen-Key low-pass filtering at 100 kHz in medical ECG signal chains. IC Role / Device Role / Timing Role: Dual op-amp implementing filter topology with one amp as integrator and one as gain stage. Use Value: 3 MHz unity-gain bandwidth ensures flat group delay; 90 dB crosstalk prevents feedthrough between filter sections. | Use Scenario: High-fidelity vertical amplifier in portable digital oscilloscopes requiring DC-coupled, low-drift response. IC Role / Device Role / Timing Role: Dual-channel DC-coupled amplifier with matched offset for differential probe inputs and offset nulling. Use Value: Matched VIO and IIO reduce baseline drift over temperature; ±15 V supply support enables ±10 V output swing into 50 Ω loads. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TL072CDR | Higher input bias current (30 pA vs. 15 nA typ), lower slew rate (13 V/µs vs. 1.5 V/µs), higher noise (18 nV/√Hz) | Better suited for high-impedance JFET-input circuits; less optimal for low-noise audio below 10 kHz | Choose TL072CDR only when ultra-low input bias is mandatory and noise is secondary |
| NE5532DR | Higher slew rate (9 V/µs), lower noise (5 nV/√Hz), but higher supply current (8 mA vs. 6.6 mA max) | Preferred for professional audio line drivers; not optimized for low-power portable instrumentation | Choose NE5532DR when driving 600 Ω loads or requiring >100 kHz bandwidth; RC4559D remains superior for battery-sensitive dual-channel gain blocks |
Compared with TL072CDR and NE5532DR, RC4559D uniquely balances low noise (2 µV/√Hz), matched dual-channel performance (±0.2 mV VIO), and moderate power (≤6.6 mA), making it optimal for cost-constrained, dual-path analog front-ends where precision and thermal management intersect.
Availability
RC4559D is available at Aetrix Electronics and suitable for audio preamplifiers, instrumentation signal conditioners, and active filter stages requiring stable component supply, long-term lifecycle support, and consistent SOIC-8 packaging.
Supply support for RC4559D 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 U.S.-based semiconductor company founded in 1930, specializing in analog ICs, embedded processors, and high-reliability components for industrial, automotive, and communications markets.
The RC4559D belongs to TI's legacy high-performance op-amp product line, engineered specifically for dual-channel, low-noise, wide-bandwidth analog signal processing in audio and test equipment where matched performance and latch-up immunity are essential.
FAQ
What is the maximum supply voltage rating for RC4559D?
The RC4559D supports a maximum supply voltage of ±18 V across VCC+ and VCC− terminals. Operation at ±15 V is specified in all electrical characteristics tables, and absolute maximum ratings confirm safe operation up to ±18 V provided power dissipation remains within the 500 mW limit and junction temperature stays below 150°C.
Does RC4559D require external frequency compensation capacitors?
No, RC4559D does not require external frequency compensation capacitors. The device is internally compensated for stable unity-gain operation, as explicitly stated in its feature list and verified by the guaranteed 3 MHz unity-gain bandwidth specification. This eliminates layout complexity and component count in standard gain configurations.
Is RC4559D pin-compatible with the Raytheon RC4559?
Yes, RC4559D is designed to be interchangeable with the Raytheon RC4559 per the official Texas Instruments datasheet, which states "Designed to be Interchangeable with Raytheon RC4559". Both share identical SOIC-8 pinout, electrical specifications, and functional behavior, enabling drop-in replacement in legacy designs originally specifying the Raytheon part.
What is the input voltage range specification for RC4559D?
The RC4559D has a guaranteed input voltage range of ±13 V under ±15 V supply conditions, as confirmed in the "Electrical Characteristics" table. This wide common-mode range exceeds typical general-purpose op-amps and allows direct interface with large-swing sensor outputs or AC-coupled signals without level-shifting circuitry.
How does RC4559D perform in terms of inter-channel crosstalk?
RC4559D achieves ≥90 dB crosstalk attenuation at 10 kHz, measured under AVD = 100 and RS = 1 kΩ conditions. This high isolation level confirms effective internal separation between its two amplifiers, making it suitable for stereo audio paths, differential signal processing, and multi-channel data acquisition where channel independence is critical.
RC4559D Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- -
- Slew Rate:
- 2V/µs
- Gain Bandwidth Product:
- 4 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 40 nA
- Voltage - Input Offset:
- 2 mV
- Current - Supply:
- 3.3mA (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
RC4559D FAQ
1.How can I place an order for RC4559D through Aetrix?
Please submit a Request for Quotation (RFQ) for RC4559D 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 RC4559D reliable?
The price and inventory of RC4559D are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RC4559D is usually 5 days.
3.What payment methods are accepted for RC4559D?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RC4559D transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RC4559D?
RC4559D orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RC4559D 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 RC4559D?
For technical support, including RC4559D datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RC4559D requirements.
6.How does Aetrix verify that RC4559D is sourced from the original manufacturer or authorized distributors?
All RC4559D 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 RC4559D meets industry standards.
7.What is the process for return or replacement of RC4559D?
All RC4559D units undergo pre-shipment inspection (PSI). If there is an issue with RC4559D, 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 RC4559D part is unused and in its original packaging.
Return procedure for RC4559D:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
RC4559D Tags
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LM358DT
STMicroelectronics
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LM358DR
Texas Instruments
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LM2904DR
Texas Instruments
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LM358ADR
Texas Instruments
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LM2904DGKR
Texas Instruments
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LM324DR
Texas Instruments
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MCP6006T-E/OT
Microchip Technology
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MCP6006UT-E/OT
Microchip Technology
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LM324PWR
Texas Instruments
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LM2902PWR
Texas Instruments
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LM2902DR
Texas Instruments
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LM358P
Texas Instruments
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