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Texas Instruments RC4559DR
- Part No.:
- RC4559DR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
RC4559DR.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,149
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Product details
Overview
RC4559DR from Texas Instruments is a dual high-performance operational amplifier designed for low-noise audio preamplifiers and signal conditioners. It delivers matched gain and offset between amplifiers, 3 MHz minimum unity-gain bandwidth, 1.5 V/µs minimum slew rate, and 2 µV/√Hz maximum equivalent input noise voltage (20 Hz–20 kHz) in an SOIC-8 package rated for 0°C to 70°C operation.
For engineers reviewing the RC4559DR datasheet, RC4559DR pinout, RC4559DR application, or RC4559DR equivalent, key selection criteria include input offset voltage matching (±0.2 mV typ), common-mode rejection ratio (80–100 dB), supply current per amplifier (2–3.3 mA), output swing capability (±10 V into 2 kΩ), and absence of latch-up under overvoltage conditions.
Technical Context
The RC4559DR integrates two independent high-slew-rate op-amps with internally compensated unity-gain stable architecture and no external frequency compensation required. Its wide common-mode input voltage range (±13 V at ±15 V supplies) and rail-to-rail output swing capability support robust signal conditioning in bipolar supply systems.
Matched internal transistor pairs ensure tight tracking of input offset voltage (±0.2 mV), input offset current (±7.5 nA), and large-signal voltage gain (±1 dB) between amplifiers - critical for stereo audio stages and differential sensor interfaces where channel-to-channel consistency directly impacts system SNR and crosstalk.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Unity-Gain Bandwidth | 3 MHz minimum - ensures stable closed-loop operation up to audio frequencies with minimal phase lag. |
| Slew Rate | 1.5 V/µs minimum - supports clean 20 kHz full-scale sine wave reproduction without slew-induced distortion. |
| Input Offset Voltage | ±0.2 mV typical matching between amplifiers - enables <0.01% gain error in dual-path instrumentation topologies. |
| Equivalent Input Noise | 1.4–2 µV/√Hz (20 Hz–20 kHz) - meets professional audio preamp requirements for dynamic range >105 dB(A). |
| Common-Mode Rejection | 80–100 dB - rejects power supply ripple and EMI coupling in single-ended sensor front-ends. |
| Supply Current | 4–6.6 mA total (both amps) - enables low-power battery-operated audio interfaces without compromising bandwidth. |
| Output Swing | ±10 V into 2 kΩ load - drives line-level outputs directly without external level-shifting circuitry. |
Pinout & Package
RC4559DR is housed in an 8-pin SOIC (D package) with 1.27 mm pitch, 3.91 mm width, and 1.75 mm max height. The package is RoHS-compliant, green, and moisture-sensitive Level-1 (260°C peak reflow).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting input, Amp #1 | High-impedance node accepting differential feedback; referenced to ground or virtual ground in standard configurations. |
| 2 | Non-inverting input, Amp #1 | Accepts signal source with CM voltage up to ±13 V; enables single-supply biasing when used with appropriate divider network. |
| 3 | Output, Amp #1 | Capable of ±10 V swing into 2 kΩ; short-circuit protected with unlimited duration rating per amplifier. |
| 4 | VCC− | Negative supply rail connection; must be ≤ −18 V absolute max; shared by both amplifiers. |
| 5 | Inverting input, Amp #2 | Independent input path; matched offset and bias current to Pin 1 enable stereo or differential pair use. |
| 6 | Non-inverting input, Amp #2 | Electrically identical to Pin 2; allows simultaneous dual-channel processing without inter-channel drift. |
| 7 | Output, Amp #2 | Functionally identical to Pin 3; crosstalk attenuation ≥90 dB at 10 kHz ensures channel isolation in audio routing. |
| 8 | VCC+ | Positive supply rail connection; must be ≤ +18 V absolute max; shared by both amplifiers. |
Key Features
| Feature | Design Value |
|---|---|
| No frequency compensation required | Internally compensated for unity-gain stability - eliminates external capacitor selection and layout sensitivity. |
| Matched gain and offset | ±0.2 mV input offset matching and ±1 dB large-signal gain matching - reduces DC error and amplitude imbalance in dual-channel systems. |
| No latch-up | Immune to destructive latch-up during input overvoltage events up to ±30 V differential - enhances reliability in noisy industrial environments. |
| Low power consumption | 4–6.6 mA total supply current - enables integration into space-constrained, thermally sensitive PCB layouts without forced cooling. |
| Wide common-mode voltage range | ±13 V input range at ±15 V supplies - supports direct interfacing with transducers and sensors operating near supply rails. |
Applications
| Professional Audio Preamplifier | Instrumentation Signal Conditioning |
|---|---|
|
Use Scenario: Dual-channel microphone preamplifier stage in recording console with 60 dB gain and 20 Hz–20 kHz bandwidth. IC Role / Device Role / Timing Role: Dual op-amp providing matched gain, low-noise amplification, and DC-coupled signal path for balanced XLR inputs. Use Value: 1.4 µV/√Hz input noise and ±0.2 mV offset matching preserve dynamic range and minimize channel imbalance below 0.05%. |
Use Scenario: Bridge sensor interface in precision pressure transducer with ratiometric output scaling. IC Role / Device Role / Timing Role: Dual amplifier configured as instrumentation amplifier front-end with matched input stages and common-mode rejection. Use Value: 100 dB CMRR and ±7.5 nA input offset current matching reduce thermal drift and bridge excitation errors. |
| Active Filter Bank | DC-Coupled Oscilloscope Vertical Amplifier |
|
Use Scenario: 4th-order low-pass filter bank for anti-aliasing in 100 kSPS data acquisition system. IC Role / Device Role / Timing Role: Dual op-amp implementing cascaded Sallen-Key stages with unity-gain stability and minimal phase shift. Use Value: 3 MHz GBW and 1.5 V/µs slew rate support 20 kHz cutoff with <0.1 dB passband ripple and monotonic step response. |
Use Scenario: High-fidelity vertical deflection amplifier in analog oscilloscope requiring DC-coupled 10 Vpp output swing. IC Role / Device Role / Timing Role: Dual op-amp driving CRT deflection plates with matched transient response and minimal overshoot. Use Value: 80 µs rise time and 18% overshoot at 20 mV input ensure accurate pulse fidelity and calibrated vertical scale linearity. |
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 (9 V/µs), lower noise (0.95 µV/√Hz), but higher supply current (8 mA) and no guaranteed offset matching. | Better suited for high-speed active filters and wideband audio; less optimal for matched dual-path DC-coupled circuits. | Select NE5532DR when bandwidth and noise dominate over channel matching and power efficiency. |
| OPA2134PA | FET-input architecture (1 pA bias current), lower distortion (0.00008% THD+N), but narrower GBW (8 MHz) and higher cost. | Ideal for ultra-low-distortion phono preamps and high-Z sensor buffers; not optimized for bipolar supply rail-to-rail swing. | Select OPA2134PA when ultra-low input bias current and THD+N are critical, and supply headroom permits FET-input limitations. |
Compared with NE5532DR and OPA2134PA, RC4559DR provides superior amplifier-to-amplifier matching (±0.2 mV offset, ±7.5 nA IIO) at lower quiescent power, making it uniquely suitable for cost-sensitive, dual-channel DC-coupled signal chains where channel tracking outweighs raw speed or ultra-low distortion.
Availability
RC4559DR is available at Aetrix Electronics and suitable for professional audio equipment, industrial sensor signal conditioning, active filter design, and test instrumentation requiring stable component supply across long production lifecycles.
Supply support for RC4559DR 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 company founded in 1930, specializing in analog ICs, embedded processors, and high-reliability components for industrial, automotive, and communications markets.
The RC4559DR belongs to TI's legacy high-performance op-amp product line, engineered specifically for dual-channel audio and precision analog signal conditioning where matched performance, low noise, and bipolar supply robustness are essential.
FAQ
What is the operating temperature range for RC4559DR?
The RC4559DR is characterized for operation from 0°C to 70°C ambient free-air temperature. This range is explicitly specified in the Absolute Maximum Ratings table and Electrical Characteristics section of the official Texas Instruments datasheet (SLOS074). Operation outside this range may result in parametric degradation or reliability risk, and no performance guarantees apply beyond these limits.
Does RC4559DR require external frequency compensation?
No, RC4559DR does not require external frequency compensation. The device is internally compensated for unity-gain stability, as confirmed in the Key Features list ("No Frequency Compensation Required") and verified in the Electrical Characteristics table where unity-gain bandwidth is tested under open-loop conditions. This eliminates the need for external capacitors in standard inverting or non-inverting configurations.
Is RC4559DR pin-compatible with other dual op-amps like NE5532?
RC4559DR uses an industry-standard SOIC-8 pinout (VCC−, In−, In+, Output for Amp #1 on Pins 4–3–2–1; Amp #2 on Pins 5–6–7 with shared VCC+ on Pin 8), matching the physical layout of NE5532 and many dual op-amps. However, functional equivalence is not guaranteed - RC4559DR offers tighter offset matching but lower slew rate than NE5532, so electrical validation is required before substitution.
What is the maximum output voltage swing for RC4559DR?
RC4559DR delivers a maximum peak output voltage swing of ±10 V into a 2 kΩ load at ±15 V supplies, as specified in the Electrical Characteristics table under "Maximum peak output voltage swing" (VOM). At lighter loads (≥3 kΩ), swing extends to ±13 V. This rail-swing capability supports line-level audio and industrial analog output standards without additional level-shifting circuitry.
How does RC4559DR handle input overvoltage conditions?
RC4559DR features no latch-up behavior and withstands differential input voltages up to ±30 V and input voltages up to ±15 V (per Absolute Maximum Ratings). This robustness stems from its bipolar process design and internal protection structures, enabling reliable operation in environments with transient surges, sensor disconnect events, or mismatched signal routing - unlike many CMOS op-amps that may latch or fail under similar stress.
RC4559DR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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
RC4559DR FAQ
1.How can I place an order for RC4559DR through Aetrix?
Please submit a Request for Quotation (RFQ) for RC4559DR 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 RC4559DR reliable?
The price and inventory of RC4559DR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RC4559DR is usually 5 days.
3.What payment methods are accepted for RC4559DR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RC4559DR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RC4559DR?
RC4559DR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RC4559DR 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 RC4559DR?
For technical support, including RC4559DR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RC4559DR requirements.
6.How does Aetrix verify that RC4559DR is sourced from the original manufacturer or authorized distributors?
All RC4559DR 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 RC4559DR meets industry standards.
7.What is the process for return or replacement of RC4559DR?
All RC4559DR units undergo pre-shipment inspection (PSI). If there is an issue with RC4559DR, 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 RC4559DR part is unused and in its original packaging.
Return procedure for RC4559DR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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