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Texas Instruments UA741CDRG4
- Part No.:
- UA741CDRG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
UA741CDRG4.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,323
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Product details
Overview
UA741CDRG4 from Texas Instruments is a general-purpose operational amplifier in SOIC-8 package, featuring ±15 V supply operation, 0.3 mV typical input offset voltage, 540 GΩ input resistance, and short-circuit protection. It serves as a voltage-follower or basic gain stage in analog signal conditioning circuits for industrial instrumentation and audio line-level interfaces.
For engineers reviewing the UA741CDRG4 datasheet, UA741CDRG4 pinout, UA741CDRG4 application, or UA741CDRG4 equivalent, key selection considerations include its 0°C to 70°C operating range, internal frequency compensation eliminating external components, absence of latch-up, and large common-mode input voltage range (±12 V).
Technical Context
The UA741CDRG4 implements a classic bipolar-input op-amp architecture with internal dominant-pole compensation, enabling stable unity-gain operation without external capacitors. Its high common-mode input voltage range (±12 V) and lack of latch-up support robust voltage-follower configurations in single-supply or dual-supply systems.
It delivers 0.5 V/µs slew rate and 20 V/mV large-signal differential voltage amplification at ±15 V supplies, with output swing up to ±14.95 V into 10 kΩ loads. Input bias current is 0.01 nA typical, and input capacitance is 3 pF - characteristics critical for low-leakage, high-impedance sensor interfacing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | ±5 V to ±15 V - supports standard dual-rail analog power domains without level-shifting. |
| Input Offset Voltage | 0.3 mV typical - enables accurate DC-coupled amplification in precision sensor front-ends. |
| Input Resistance | 540 GΩ typical - minimizes loading on high-impedance sources like piezoelectric sensors or photodiode transimpedance nodes. |
| Slew Rate | 0.5 V/µs - sufficient for audio-band (<20 kHz) and slow-control-loop applications, not RF or fast pulse shaping. |
| Common-Mode Range | ±12 V - allows direct interface to signals referenced near supply rails in industrial control I/O modules. |
| Short-Circuit Current | ±80 mA - provides inherent output fault tolerance during transient overloads or wiring errors. |
| Operating Temperature | 0°C to 70°C - qualified for commercial-grade embedded systems, not automotive or extended industrial environments. |
Pinout & Package
UA741CDRG4 uses an 8-pin SOIC (D) package with 4.90 mm × 3.91 mm body size and standard JEDEC MS-012AC footprint. Pin 1 and Pin 5 are no-connect (NC) per Revision H (2026) datasheet - offset-null functionality is removed.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | No internal connection (NC) | Unused terminal; must be left floating - no offset adjustment capability. |
| 2 | Inverting input (IN–) | Primary feedback node in inverting amplifier or summing configurations. |
| 3 | Noninverting input (IN+) | Reference input for voltage-follower, noninverting gain stages, or comparator hysteresis networks. |
| 4 | Negative supply (VCC–) | Ground or negative rail connection; required for dual-supply operation or single-supply biasing via virtual ground. |
| 5 | No internal connection (NC) | Unused terminal; must be left floating - no offset adjustment capability. |
| 6 | Output (OUT) | Class-B push-pull stage driving resistive or capacitive loads up to ±14.95 V swing. |
| 7 | Positive supply (VCC+) | Primary power rail; bypass capacitor (0.1 µF ceramic) required adjacent to pin for noise immunity. |
| 8 | No internal connection (NC) | Unused terminal; must be left floating - no thermal pad or auxiliary function. |
Key Features
| Feature | Design Value |
|---|---|
| Internal frequency compensation | Enables stable unity-gain operation without external compensation components - reduces BOM count and layout complexity. |
| Short-circuit protection | Withstands indefinite output-to-rail shorts at ±80 mA, preventing catastrophic failure during test or field faults. |
| No latch-up behavior | Ensures reliable recovery after input overvoltage events - critical for unbuffered sensor inputs exposed to ESD or transients. |
| Large common-mode input range | ±12 V at ±15 V supplies - supports direct connection to signals near supply rails in PLC analog input modules. |
| Dual-supply operation | Operates from ±5 V to ±15 V - compatible with legacy industrial control power architectures using split ±12 V or ±15 V rails. |
Applications
| Industrial Sensor Signal Conditioning | Pro Audio Line-Level Amplification |
|---|---|
|
Use Scenario: Amplifying low-level outputs from RTD, thermocouple, or strain-gauge bridges in programmable logic controller (PLC) analog input cards. IC Role / Device Role / Timing Role: Configured as precision voltage-follower or noninverting amplifier with gain set by external resistors; no timing function. Use Value: High input resistance (540 GΩ) prevents bridge imbalance errors; ±12 V common-mode range accommodates sensor excitation offsets. |
Use Scenario: Buffering and level-shifting line-level signals between mixing console channels and digital audio interface circuitry. IC Role / Device Role / Timing Role: Used as unity-gain buffer to isolate source impedance and prevent crosstalk; no timing or clocking role. Use Value: Low input bias current (0.01 nA) avoids DC offset drift in high-impedance audio paths; short-circuit protection guards against accidental cable shorts. |
| DVD Player Analog Video Output Stage | Legacy Test Equipment Signal Generation |
|
Use Scenario: Driving composite video signals from DVD player video DACs to RCA output connectors with impedance matching and DC restoration. IC Role / Device Role / Timing Role: Acts as DC-coupled output driver with adjustable gain; no video timing or sync generation function. Use Value: ±14.95 V output swing into 10 kΩ ensures full 1 Vpp video compliance; internal compensation eliminates need for external stability caps. |
Use Scenario: Generating calibrated DC reference voltages and low-frequency waveforms in benchtop multimeters and function generators. IC Role / Device Role / Timing Role: Serves as precision integrator or adjustable-gain amplifier in analog feedback loops; no oscillator or timing core. Use Value: 0.3 mV typical input offset enables sub-mV accuracy in reference buffers; wide supply range (±5 V to ±15 V) supports multiple instrument rail configurations. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar general-purpose op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM358DR | Single-supply capable (3–32 V), lower input offset (2 mV max), but only 0.3 V/µs slew rate and no dual-supply symmetry. | Better suited for battery-powered or single-rail systems; lacks true bipolar performance for AC-coupled audio or precision differential sensing. | Select LM358DR when cost, single-supply operation, or rail-to-rail input is prioritized over dual-supply fidelity and speed. |
| TL081CDR | JFET-input architecture, higher slew rate (13 V/µs), lower input bias current (30 pA), but requires external compensation for unity-gain stability. | Preferred for high-speed AC amplification (e.g., active filters above 10 kHz); unsuitable for simple drop-in replacement due to compensation requirements. | Choose TL081CDR when bandwidth, low input current, or low noise in high-Z circuits outweighs ease of use and stability guarantees. |
Compared with LM358DR and TL081CDR, UA741CDRG4 offers guaranteed unity-gain stability and proven robustness in legacy industrial designs, trading off speed and input current for simplicity and fault tolerance - making it optimal for maintenance-replacement and long-lifecycle analog subsystems.
Availability
UA741CDRG4 is available at Aetrix Electronics and suitable for industrial sensor signal conditioning, pro audio line-level buffering, DVD player analog video output, and legacy test equipment signal generation requiring stable component supply across multi-year production cycles.
Supply support for UA741CDRG4 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 connectivity technologies, with decades of heritage in foundational analog IC design.
UA741CDRG4 belongs to TI's legacy general-purpose op-amp product line, engineered for reliability, ease of use, and broad compatibility in analog signal conditioning, voltage regulation feedback, and educational electronics applications.
FAQ
What is the maximum supply voltage for UA741CDRG4?
The absolute maximum supply voltage for UA741CDRG4 is ±18 V, but recommended operation is limited to ±5 V to ±15 V. Exceeding ±18 V risks permanent damage per Section 5.1 of the datasheet. At ±15 V, UA741CDRG4 achieves its full specified performance including ±14.95 V output swing and 0.5 V/µs slew rate.
Does UA741CDRG4 support offset voltage nulling?
No, UA741CDRG4 does not support offset voltage nulling. Per Revision H (February 2026) of the datasheet, pins 1 and 5 are designated "No internal connection (NC)" - the offset-null capability present in earlier µA741 variants has been removed. UA741CDRG4 relies on its 0.3 mV typical input offset voltage and internal trimming for DC accuracy.
Is UA741CDRG4 pin-compatible with other µA741 variants?
UA741CDRG4 shares the same SOIC-8 (D) package pinout with UA741CD and UA741CDR, but differs electrically from obsolete variants like µA741CP (PDIP) and historical versions with offset-null pins. Pin compatibility is confirmed only within the D-package family; substitution into PDIP or SO (PS) layouts requires PCB redesign due to footprint differences.
What thermal derating applies to UA741CDRG4 in SOIC-8 package?
UA741CDRG4 in SOIC-8 (D) package has a junction-to-ambient thermal resistance (RθJA) of 138.7°C/W. At maximum ambient temperature (70°C) and ±15 V supplies, power dissipation must remain below ~575 mW to keep junction temperature under 150°C. Layout best practices - including 0.1 µF ceramic bypass caps at each supply pin - are essential to maintain thermal performance.
Can UA741CDRG4 be used in single-supply configurations?
Yes, UA741CDRG4 can operate from a single supply (e.g., +15 V and ground) when the input common-mode range and output swing are referenced appropriately - for example, by biasing the noninverting input at VCC/2 using a resistor divider. However, its specified common-mode range is ±12 V relative to midpoint, so single-supply use requires careful DC biasing and may reduce effective output swing compared to dual-supply operation.
UA741CDRG4 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:
- 1
- Output Type:
- -
- Slew Rate:
- 0.5V/µs
- Gain Bandwidth Product:
- 1 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 80 nA
- Voltage - Input Offset:
- 1 mV
- Current - Supply:
- 1.7mA
- Current - Output / Channel:
- 25 mA
- Voltage - Supply Span (Min):
- 7 V
- Voltage - Supply Span (Max):
- 36 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
UA741CDRG4 FAQ
1.How can I place an order for UA741CDRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for UA741CDRG4 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 UA741CDRG4 reliable?
The price and inventory of UA741CDRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UA741CDRG4 is usually 5 days.
3.What payment methods are accepted for UA741CDRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UA741CDRG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UA741CDRG4?
UA741CDRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UA741CDRG4 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 UA741CDRG4?
For technical support, including UA741CDRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UA741CDRG4 requirements.
6.How does Aetrix verify that UA741CDRG4 is sourced from the original manufacturer or authorized distributors?
All UA741CDRG4 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 UA741CDRG4 meets industry standards.
7.What is the process for return or replacement of UA741CDRG4?
All UA741CDRG4 units undergo pre-shipment inspection (PSI). If there is an issue with UA741CDRG4, 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 UA741CDRG4 part is unused and in its original packaging.
Return procedure for UA741CDRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
UA741CDRG4 Tags
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LM358DT
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