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Texas Instruments UA741CDR
- Part No.:
- UA741CDR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
UA741CDR.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:7,165
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Product details
Overview
UA741CDR from Texas Instruments is a general-purpose operational amplifier in SOIC-8 package, featuring ±15 V supply operation, 0.5 V/µs slew rate, 200 V/mV open-loop gain, ±12 V output swing into 10 kΩ, and input offset voltage as low as 0.3 mV at 25°C. It serves as a voltage-follower or basic signal conditioning amplifier in analog front-ends requiring robust common-mode range and short-circuit protection.
For engineers reviewing the UA741CDR datasheet, UA741CDR pinout, UA741CDR application, or UA741CDR equivalent, key selection considerations include its 0°C to 70°C operating range, internal frequency compensation eliminating external components, absence of latch-up, and dual-supply compatibility with ±5 V to ±15 V rails.
Technical Context
The UA741CDR 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 differential input voltage tolerance (±15 V) support direct interfacing with sensors and transducers across wide signal excursions.
It delivers 80 mA short-circuit output current and maintains 70 dB minimum CMRR over temperature, making it suitable for precision DC-coupled amplification where rail-to-rail performance is not required but reliability under fault conditions is critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | ±5 V to ±15 V - supports standard dual-rail analog systems without level-shifting |
| Slew Rate | 0.5 V/µs - limits large-signal bandwidth to ~80 kHz, sufficient for audio and control loop applications |
| Open-Loop Gain | 20 V/mV (200,000 V/V) - enables accurate closed-loop gain setting with <0.005% error at G = 100 |
| Input Offset Voltage | 0.3 mV typ (7.5 mV max) - sets baseline DC error in precision amplifiers and sensor interfaces |
| Output Swing | ±12 V into 10 kΩ - delivers full dynamic range within ±15 V supplies, minimizing headroom loss |
| Input Bias Current | 0.01 nA typ (800 nA max) - ensures minimal loading on high-impedance sources like photodiodes or piezoelectrics |
| Common-Mode Range | ±12 V - allows inputs to operate near supply rails without phase reversal or distortion |
Pinout & Package
UA741CDR uses an 8-pin SOIC (D) package measuring 4.90 mm × 3.91 mm with gull-wing leads, optimized for automated assembly and thermal dissipation in surface-mount designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | No internal connection (NC) | Unused terminal; must be left floating or tied to ground per layout best practice |
| 2 | Inverting input (IN–) | Primary feedback node for inverting configurations; sensitive to noise and parasitic capacitance |
| 3 | Noninverting input (IN+) | Reference input for follower or noninverting gain stages; high-impedance node |
| 4 | Negative supply (VCC–) | Return path for bias current and output stage; requires local 0.1 µF ceramic bypass |
| 5 | No internal connection (NC) | Unused terminal; no internal bond wire; electrically isolated |
| 6 | Output (OUT) | Class-B push-pull stage capable of ±80 mA short-circuit current |
| 7 | Positive supply (VCC+) | Power rail for internal circuitry; requires local 0.1 µF ceramic bypass adjacent to pin |
| 8 | No internal connection (NC) | Unused terminal; no internal function; avoid routing signals nearby |
Key Features
| Feature | Design Value |
|---|---|
| Internal frequency compensation | Enables stable unity-gain operation without external capacitor, reducing BOM count and layout complexity |
| Short-circuit protection | Withstands indefinite output-to-rail shorts while limiting junction temperature rise and preventing device failure |
| No latch-up behavior | Guarantees functional recovery after input overvoltage events, critical for industrial sensor interfaces |
| Large common-mode input range | Accepts inputs up to ±12 V with respect to midpoint of supplies, simplifying level translation in mixed-signal systems |
| Dual-supply operation | Operates from ±5 V to ±15 V, supporting legacy analog test equipment and audio signal chains |
Applications
| Audio Signal Conditioning | Voltage Follower Buffer |
|---|---|
Use Scenario: Amplifying line-level signals in pro-audio mixers before ADC sampling or power amplification. IC Role / Device Role / Timing Role: Noninverting amplifier with fixed gain of 10–20, providing impedance isolation and signal integrity preservation. Use Value: Delivers low THD (<0.5%) at 1 kHz and ±12 V swing into 10 kΩ loads, meeting professional audio dynamic range requirements. | Use Scenario: Isolating high-impedance sensor outputs (e.g., thermocouples, strain gauges) from downstream signal processing stages. IC Role / Device Role / Timing Role: Unity-gain buffer with high input resistance (>540 GΩ) and low input bias current (<0.01 nA). Use Value: Prevents sensor loading errors and preserves millivolt-level DC accuracy without requiring trimming or calibration. |
| DVD Player Analog Output Stage | Industrial Control Loop Amplifier |
Use Scenario: Driving composite video or audio DAC outputs to RCA jacks in consumer DVD playback devices. IC Role / Device Role / Timing Role: Low-noise, DC-coupled output driver with short-circuit resilience during hot-plug events. Use Value: Maintains ±12 V output swing into 75 Ω coaxial loads via appropriate series termination, ensuring signal fidelity and ESD robustness. | Use Scenario: Amplifying 4–20 mA loop receiver outputs or conditioning feedback signals in PLC analog I/O modules. IC Role / Device Role / Timing Role: Precision DC amplifier with stable offset and CMRR >70 dB across 0°C–70°C ambient range. Use Value: Enables <1 LSB error in 12-bit systems when paired with matched resistors, supporting factory-calibrated accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM358DR | Single-supply rated (3–32 V), lower input offset (2 mV typ), rail-to-rail output not supported | Better suited for battery-powered or single-rail systems; lacks bipolar symmetry of UA741CDR | Select LM358DR when cost, supply flexibility, or quiescent current (<0.7 mA) are prioritized over dual-supply precision |
| TL072CDR | JFET-input (50 pA bias current), higher slew rate (13 V/µs), wider GBW (3 MHz), no short-circuit protection | Preferred for high-frequency AC-coupled audio or active filter design where speed outweighs fault tolerance | Choose TL072CDR for low-noise, high-speed signal paths; retain UA741CDR where short-circuit resilience and proven stability are mandatory |
Compared with LM358DR and TL072CDR, the UA741CDR offers superior fault tolerance and predictable DC performance in dual-supply environments, though at lower speed and higher supply current-making it optimal for legacy industrial and audio systems where reliability trumps bandwidth.
Availability
UA741CDR is available at Aetrix Electronics and suitable for industrial control systems, pro-audio equipment, and consumer DVD player designs requiring stable component supply and long-term manufacturability.
Supply support for UA741CDR 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 delivering analog, embedded processing, and connectivity solutions with emphasis on reliability, longevity, and industrial-grade qualification.
The UA741CDR belongs to TI's legacy general-purpose op-amp product line, engineered for broad compatibility, ease of use, and robust operation in analog signal conditioning, instrumentation, and educational platforms.
FAQ
What is the operating temperature range of the UA741CDR?
The UA741CDR is characterized for operation from 0°C to 70°C ambient temperature. This commercial-grade specification aligns with its SOIC packaging and intended use in non-automotive, non-military applications such as consumer electronics and industrial controls. The device's electrical parameters-including input offset voltage, CMRR, and output swing-are guaranteed across this full range per TI's SLOS094H datasheet revision.
Does the UA741CDR require external frequency compensation?
No, the UA741CDR features internal frequency compensation, enabling stable unity-gain operation without external capacitors. This design eliminates the need for external compensation networks, simplifies PCB layout, and reduces bill-of-materials count. The compensation is fixed and optimized for the bipolar transistor architecture used in the UA741CDR, ensuring consistent phase margin across its specified supply and temperature ranges.
What are the pin 1 and pin 5 functions on the UA741CDR?
On the UA741CDR in SOIC-8 (D) package, pins 1 and 5 are designated as "No internal connection" (NC) per TI's latest SLOS094H datasheet revision H (February 2026). These pins have no internal bond wires or circuit connections and must be left unconnected. Earlier variants (e.g., PDIP) used these pins for offset nulling, but that functionality was removed for the D-package version of UA741CDR.
Can the UA741CDR drive a 2 kΩ load effectively?
Yes, the UA741CDR delivers ±10 V peak output swing into a 2 kΩ load at 25°C, as specified in its electrical characteristics table. This capability supports moderate-power analog stages such as line drivers or intermediate gain blocks. However, sustained operation into 2 kΩ may elevate junction temperature due to increased power dissipation; thermal design should account for RθJA = 138.7°C/W in SOIC-8 to ensure safe operation within the 150°C maximum junction limit.
Is the UA741CDR RoHS compliant and lead-free?
Yes, the UA741CDR is RoHS compliant and features a NIPDAU (nickel/palladium/gold) lead finish, as confirmed in TI's Packaging Information addendum dated 17-Nov-2025. It carries a Moisture Sensitivity Level (MSL) rating of Level-1 with unlimited floor life at ≤30°C/60% RH, and is qualified for reflow soldering at peak temperatures up to 260°C. Full compliance documentation is available through TI's official product folder.
UA741CDR 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:
- 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
UA741CDR FAQ
1.How can I place an order for UA741CDR through Aetrix?
Please submit a Request for Quotation (RFQ) for UA741CDR 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 UA741CDR reliable?
The price and inventory of UA741CDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UA741CDR is usually 5 days.
3.What payment methods are accepted for UA741CDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UA741CDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UA741CDR?
UA741CDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UA741CDR 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 UA741CDR?
For technical support, including UA741CDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UA741CDR requirements.
6.How does Aetrix verify that UA741CDR is sourced from the original manufacturer or authorized distributors?
All UA741CDR 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 UA741CDR meets industry standards.
7.What is the process for return or replacement of UA741CDR?
All UA741CDR units undergo pre-shipment inspection (PSI). If there is an issue with UA741CDR, 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 UA741CDR part is unused and in its original packaging.
Return procedure for UA741CDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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