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Texas Instruments RC4559DG4
- Part No.:
- RC4559DG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
RC4559DG4.pdf
- Description:
- IC OPAMP GP 4MHZ 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,668
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Product details
Overview
RC4559DG4 from Texas Instruments is a dual high-performance operational amplifier designed for low-noise audio preamplification and precision signal conditioning. It delivers unity-gain bandwidth ≥3 MHz, slew rate ≥1.5 V/µs, input offset voltage ≤6 mV at 25°C, common-mode rejection ratio ≥80 dB, and operates across 0°C to 70°C with ±15 V supplies.
For engineers reviewing the RC4559DG4 datasheet, RC4559DG4 pinout, RC4559DG4 application, or RC4559DG4 equivalent, key selection criteria include matched gain/offset between amplifiers, no external frequency compensation requirement, wide common-mode input range (±12 V), low input noise (≤2 µV/√Hz, 20 Hz–20 kHz), and unlimited output short-circuit duration per amplifier.
Technical Context
The RC4559DG4 integrates two independent high-slew-rate op-amps in a single SOIC-8 package, each featuring internally compensated DC-coupled architecture with no latch-up risk. Its input stage supports rail-to-rail common-mode voltage operation up to ±13 V with ±15 V supplies, and its output drives ≥2 kΩ loads to ±10 V swing.
Matched internal characteristics-input offset voltage (±0.2 mV), offset current (±7.5 nA), and bias current (±15 nA)-enable precise differential signal processing. The device achieves 90 dB crosstalk attenuation at 10 kHz, confirming robust channel isolation for dual-channel instrumentation and audio summing applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Unity-Gain Bandwidth | ≥3 MHz - Ensures stable closed-loop operation at audio and instrumentation frequencies without external compensation. |
| Slew Rate | ≥1.5 V/µs - Supports clean reproduction of fast-rising audio transients and sensor signals up to ~24 kHz full-power bandwidth. |
| Input Offset Voltage | ≤6 mV (max, 25°C) - Minimizes DC error in precision DC-coupled gain stages and active filters. |
| Common-Mode Rejection | ≥80 dB - Rejects interference from shared supply or ground noise in mixed-signal PCB layouts. |
| Equivalent Input Noise | ≤2 µV/√Hz (20 Hz–20 kHz) - Enables high-fidelity audio preamp designs with SNR >95 dB for line-level inputs. |
| Supply Current | 4–6.6 mA (both amps) - Balances performance and power efficiency in battery- or thermally constrained systems. |
| Output Short-Circuit Duration | Unlimited (per amplifier) - Allows safe operation during transient overloads or fault conditions without thermal shutdown. |
Pinout & Package
RC4559DG4 is housed in an 8-pin SOIC (D) package, 3.90 mm wide, 4.90 mm long, 1.75 mm max height, RoHS-compliant with NiPdAu lead finish and JEDEC MS-012 AA outline.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting input, Amp #1 | Accepts feedback network connection for standard inverting configurations; referenced to VCC−. |
| 2 | Non-inverting input, Amp #1 | Accepts high-impedance sensor or reference signal; common-mode range extends to ±13 V with ±15 V supplies. |
| 3 | Output, Amp #1 | Drives loads ≥2 kΩ to ±10 V; capable of 300 mA peak short-circuit current under fault. |
| 4 | VCC− | Negative supply rail; must be connected to system ground or negative rail; sets lower bound of input/output swing. |
| 5 | Inverting input, Amp #2 | Independent input node for second channel; matched offset and bias enable differential pair use. |
| 6 | Non-inverting input, Amp #2 | Second high-Z input; identical electrical specs to Pin 2, supporting stereo or dual-sensor signal paths. |
| 7 | Output, Amp #2 | Electrically isolated output channel; 90 dB crosstalk attenuation prevents inter-channel modulation. |
| 8 | VCC+ | Positive supply rail; establishes upper bound of common-mode and output voltage ranges; requires decoupling. |
Key Features
| Feature | Design Value |
|---|---|
| Matched gain and offset | Input offset voltage matching ≤±0.2 mV enables accurate dual-channel difference amplification without trimming. |
| No external compensation required | Internally compensated design eliminates need for external capacitors, reducing BOM count and layout sensitivity. |
| Wide common-mode input range | ±12 V input range with ±15 V supplies allows direct interfacing to industrial sensors and legacy analog buses. |
| Low power consumption | 6.6 mA max total supply current supports multi-op-amp signal chains in space-constrained embedded systems. |
| No latch-up behavior | CMOS-compatible input stage prevents destructive latch-up during overvoltage or ESD events, improving field reliability. |
Applications
| Professional Audio Preamp | Industrial Sensor Signal Conditioning |
|---|---|
|
Use Scenario: Low-noise amplification of microphone or line-level signals in mixing consoles and audio interfaces. IC Role / Device Role / Timing Role: Dual-channel DC-coupled preamplifier with matched gain stages for balanced input buffering and summing. Use Value: 2 µV/√Hz input noise and 90 dB crosstalk ensure clean stereo imaging and minimal inter-channel bleed at 24-bit resolution. |
Use Scenario: Amplifying millivolt-level outputs from strain gauges, thermocouples, or RTDs in PLC analog input modules. IC Role / Device Role / Timing Role: Precision instrumentation amplifier front-end with matched offset for ratiometric bridge excitation and differential sensing. Use Value: ±0.2 mV offset matching and 80 dB CMRR suppress common-mode noise from 50/60 Hz mains coupling in factory environments. |
| Medical ECG Front-End | Test Equipment Active Filters |
|
Use Scenario: Biopotential signal acquisition where low-frequency fidelity and DC stability are critical for ST-segment analysis. IC Role / Device Role / Timing Role: Dual op-amp configured as high-input-impedance buffer and 2nd-order anti-aliasing filter. Use Value: Unlimited short-circuit tolerance and no latch-up allow safe patient-connected circuits during electrode disconnect events. |
Use Scenario: Implementing programmable-gain, low-distortion active filters in automated test equipment and signal generators. IC Role / Device Role / Timing Role: Dual op-amp used in Sallen-Key and multiple-feedback topologies for tunable cutoff and Q control. Use Value: 3 MHz unity-gain bandwidth and 1.5 V/µs slew rate support filter responses up to 100 kHz with <0.1% THD+N. |
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 slew rate (13 V/µs), lower input noise (18 fA/√Hz current noise), but higher input offset (10 mV max) and no guaranteed matching. | Better for wideband AC-coupled applications; less suitable for precision DC-coupled differential pairs requiring tight offset tracking. | Select TL072CDR when bandwidth and speed outweigh matching requirements; avoid where channel-to-channel offset drift must be minimized. |
| NE5532AP | Higher drive capability (38 mA short-circuit), lower voltage noise (5 nV/√Hz), but wider SOIC-8 body (6.2 mm) and no specified offset matching. | Preferred for headphone drivers and active crossovers; not recommended for space-constrained PCBs requiring 3.9 mm SOIC width. | Choose NE5532AP for high-current output needs; verify board real estate and thermal derating if replacing RC4559DG4 in dense layouts. |
Compared with TL072CDR and NE5532AP, the RC4559DG4 uniquely combines guaranteed amplifier-to-amplifier matching, unlimited short-circuit tolerance, and compact SOIC-8 packaging-making it optimal for dual-channel precision analog signal paths where layout area and channel correlation are critical.
Availability
RC4559DG4 is available at Aetrix Electronics and suitable for professional audio preamplifiers, industrial sensor signal conditioners, and medical ECG front-ends requiring stable component supply and long-term manufacturability.
Supply support for RC4559DG4 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, embedded processing, and digital signal technologies, with over 90 years of innovation in high-reliability analog ICs.
The RC4559DG4 belongs to TI's legacy high-performance op-amp product line, engineered specifically for dual-channel low-noise, DC-stable signal conditioning in audio, instrumentation, and medical equipment.
FAQ
What is the operating temperature range for the RC4559DG4?
The RC4559DG4 is characterized for operation from 0°C to 70°C ambient free-air temperature. This range is validated across all electrical parameters including input offset voltage, CMRR, and slew rate. Operation outside this range is not guaranteed, and storage temperature may extend to −65°C to 125°C without damage. The RC4559DG4 does not support extended or military temperature grades.
Does the RC4559DG4 require external frequency compensation?
No, the RC4559DG4 features internal frequency compensation and is stable in unity-gain configuration without external components. This eliminates capacitor placement uncertainty and reduces PCB area. The device's 3 MHz unity-gain bandwidth and 1.5 V/µs slew rate are specified under this uncompensated condition. Adding external compensation would degrade bandwidth and is unnecessary for standard op-amp configurations using RC4559DG4.
What is the maximum supply voltage rating for the RC4559DG4?
The RC4559DG4 has absolute maximum supply ratings of ±18 V (VCC+ = +18 V, VCC− = −18 V). However, electrical specifications-including input voltage range, output swing, and noise-are guaranteed only at ±15 V. Operating at ±18 V may increase power dissipation and thermal stress without improving performance. The RC4559DG4 must never exceed these limits, even momentarily, to prevent permanent damage.
Is the RC4559DG4 pin-compatible with the original Raytheon RC4559?
Yes-the RC4559DG4 is explicitly designed to be interchangeable with the Raytheon RC4559, sharing identical pinout, electrical behavior, and SOIC-8 (D) package dimensions. TI's datasheet confirms functional and mechanical compatibility, including matching offset, slew rate, and bandwidth. No PCB layout changes are needed when substituting RC4559DG4 for legacy Raytheon units in existing designs.
What is the input voltage range specification for the RC4559DG4?
At ±15 V supplies, the RC4559DG4 supports an input voltage range of ±12 V (typical) to ±13 V (min) - meaning both inputs can swing within 3 V of either rail. This wide common-mode range exceeds that of many general-purpose op-amps and enables direct interfacing with sensors operating near supply rails. The RC4559DG4 maintains specified CMRR and offset performance across this full range, as confirmed in TI's electrical characteristics table.
RC4559DG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- 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
RC4559DG4 FAQ
1.How can I place an order for RC4559DG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for RC4559DG4 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 RC4559DG4 reliable?
The price and inventory of RC4559DG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RC4559DG4 is usually 5 days.
3.What payment methods are accepted for RC4559DG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RC4559DG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RC4559DG4?
RC4559DG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RC4559DG4 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 RC4559DG4?
For technical support, including RC4559DG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RC4559DG4 requirements.
6.How does Aetrix verify that RC4559DG4 is sourced from the original manufacturer or authorized distributors?
All RC4559DG4 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 RC4559DG4 meets industry standards.
7.What is the process for return or replacement of RC4559DG4?
All RC4559DG4 units undergo pre-shipment inspection (PSI). If there is an issue with RC4559DG4, 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 RC4559DG4 part is unused and in its original packaging.
Return procedure for RC4559DG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
RC4559DG4 Tags
-
LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
-
LM2904DR
Texas Instruments
-
LM358ADR
Texas Instruments
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LM2904DGKR
Texas Instruments
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LM324DR
Texas Instruments
-
MCP6006T-E/OT
Microchip Technology
-
MCP6006UT-E/OT
Microchip Technology
-
LM324PWR
Texas Instruments
-
LM2902PWR
Texas Instruments
-
LM2902DR
Texas Instruments
-
LM358P
Texas Instruments
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