UA741CN

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UA741CN

+BOM

IC OPAMP GP 1 CIRCUIT 8DIP

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Specifications

Attribute Value
Part Status Obsolete
Base Product Number UA741
Amplifier Type Standard (General Purpose)
Number of Circuits 1
Slew Rate 0.5V/µs
Gain Bandwidth Product 1 MHz
Current - Input Bias 10 nA
Voltage - Input Offset 1 mV
Current - Supply 1.7mA
Current - Output / Channel 25 mA
Voltage - Supply Span (Min) 10 V
Voltage - Supply Span (Max) 44 V
Operating Temperature 0°C ~ 70°C
Mounting Type Through Hole
Package 8-DIP (0.300", 7.62mm)
Supplier Device Package 8-DIP
Packaging Tube

Overview

Description

The UA741CN is a general-purpose operational amplifier (op-amp) known for its versatility and reliability in analog electronic circuits. It features a high-gain, fully differential input stage, making it suitable for a wide range of applications, including signal amplification, filtering, and mathematical operations like addition and integration.
Key characteristics of the UA741CN include a large input voltage range, moderate bandwidth, and internal frequency compensation, which simplifies its use by requiring no external components for stabilization. It operates on dual power supplies, typically ±15V, but can function with single or asymmetrical supply voltages.
The UA741CN's input offset voltage is relatively low, and it provides short-circuit protection, ensuring durability in various circuit configurations. While it may not offer the high-speed or precision of more advanced op-amps, its ease of use and robustness make it popular in educational settings and prototyping.
Overall, the UA741CN’s balance of performance and simplicity makes it a staple component for hobbyists and professionals designing analog circuits.

Equivalent

The UA741CN is a general-purpose operational amplifier. Equivalent products include the LM741, TL081, and CA3140, among others. These op-amps are widely used as substitutes due to their similar performance characteristics in terms of voltage gain, bandwidth, and input/output voltage range. However, specific parameters like input offset voltage and slew rate might vary, so it’s essential to review the datasheets to ensure compatibility with your application.

Features

The UA741CN is a general-purpose operational amplifier with several key features:
1. High Input Impedance: Offers high input impedance, which minimizes the loading effect on the preceding stage.
2. Low Output Impedance: Ensures better coupling with the next stage in the circuit.
3. Wide Supply Voltage Range: Operates over a wide range of supply voltages, typically from ±5V to ±18V.
4. Offset Voltage: Features low offset voltage, enhancing accuracy in DC applications.
5. Frequency Compensation: Internally frequency-compensated, simplifying circuit design by eliminating the need for external components.
6. Slew Rate: Provides a moderate slew rate, suitable for many audio and signal processing applications.
7. Short Circuit Protection: Built-in short-circuit protection to prevent damage under fault conditions.
8. Temperature Stability: Exhibits good performance over a range of operating temperatures.
9. Package Type: Comes in an 8-pin dual in-line package (DIP), making it easy to handle and integrate into standard circuit boards.
Overall, the UA741CN is popular for its reliability and versatility in various analog applications such as signal conditioning, filtering, and amplification.

Pinout

The UA741CN is an operational amplifier (op-amp) commonly used in analog electronics. It comes in an 8-pin dual in-line package (DIP). Below is a concise description of its pin functions:
1. Pin 1 (Offset Null): Used to adjust the input offset voltage to zero using a potentiometer connected between pins 1 and 5.
2. Pin 2 (Inverting Input): The input terminal where the signal is applied with a phase opposite to the output.
3. Pin 3 (Non-Inverting Input): The input terminal where the signal is applied with the same phase as the output.
4. Pin 4 (V- or VCC-): The negative power supply voltage.
5. Pin 5 (Offset Null): Used in conjunction with pin 1 to nullify the offset voltage.
6. Pin 6 (Output): The output terminal of the op-amp.
7. Pin 7 (V+ or VCC+): The positive power supply voltage.
8. Pin 8 (No Connection): Typically not connected to any internal circuitry.
The UA741CN is widely used for a variety of applications including signal amplification, filtering, and mathematical operations due to its versatility and ease of use.

Manufacturer

The UA741CN is manufactured by Texas Instruments. Texas Instruments (TI) is an American technology company that designs and manufactures semiconductors and various integrated circuits. It is known for producing a wide range of electronic components used in industrial, automotive, personal electronics, and communications applications. TI is one of the largest semiconductor companies globally, and it plays a significant role in advancing technology in various sectors through its innovations in analog and embedded processing products.

Application

The UA741CN is a general-purpose operational amplifier widely used in various applications due to its versatility and reliability. Common application areas include:
1. Signal Amplification: Used in audio amplifiers and sensor signal conditioning.
2. Active Filters: Implementing filter circuits like low-pass, high-pass, band-pass, and band-stop filters.
3. Oscillators: Essential in generating waveforms for various electronic applications.
4. Voltage Followers: Used to buffer signals and prevent loading effects in circuits.
5. Comparators: Employed for comparing voltages in voltage level detection systems.
6. Analog Mathematical Operations: Performing operations such as addition, subtraction, integration, and differentiation in analog computers and controllers.
These features make the UA741CN suitable for educational, industrial, and consumer electronics.

Package

The UA741CN is a general-purpose operational amplifier available in an 8-pin dual in-line package (DIP). It is widely used in various electronic applications for its versatility and reliability.

Frequently Asked Questions


Q: What is the typical supply voltage range for the UA741CN?
A: The UA741CN operates with a supply span from 10V to 44V, suitable for dual or single supply designs.


Q: What is the slew rate of the UA741CN op-amp?
A: The slew rate is 0.5V/μs, limiting its use to low-frequency signals below 1 MHz.


Q: Can the UA741CN drive a 25 mA load directly?
A: Yes, the output channel can source or sink up to 25 mA, adequate for driving LEDs or low-power loads.


Q: What is the input bias current for this amplifier?
A: The input bias current is 10 nA, which may require careful impedance matching in high-impedance circuits.


Q: Is the UA741CN suitable for precision DC applications?
A: With an input offset voltage of 1 mV, it offers moderate precision but may need nulling for critical DC circuits.


Q: What package type does the UA741CN come in?
A: It uses an 8-pin DIP (0.300", 7.62mm) through-hole package, ideal for prototyping and breadboards.


Q: What is the operating temperature range of the UA741CN?
A: The operating temperature range is 0°C to 70°C, suitable for commercial environments only.


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