Overview
The µA741CDG4, produced by Texas Instruments, is a general-purpose operational amplifier that has been a staple in electronic design for over four decades. This device is known for its versatility, reliability, and ease of use. It features offset-voltage null capability, short-circuit protection, and a high common-mode input voltage range, making it ideal for various applications. The µA741CDG4 operates within a temperature range of 0°C to 70°C and is available in an 8-pin SOIC package.
Key Specifications
| Parameter | Test Conditions | Min | Max | Unit | |
|---|---|---|---|---|---|
| Supply Voltage (VCC) | -18 | 18 | V | ||
| Input Offset Voltage (VIO) | VO = 0, 25°C | 1 | 6 | 7.5 | mV |
| Offset Voltage Adjust Range (ΔVIO(adj)) | VO = 0, 25°C | ±15 | mV | ||
| Input Offset Current (IIO) | VO = 0, 25°C | 20 | 200 | 300 | nA |
| Input Bias Current (IIB) | VO = 0, 25°C | 80 | 500 | nA | |
| Common-Mode Input Voltage Range (VICR) | ±12 | ±13 | V | ||
| Slew Rate | 0.5 | V/μs |
Key Features
- Offset-Voltage Null Capability: Allows for the adjustment of input offset voltage using external pins.
- Short-Circuit Protection: The device is protected against short circuits to ground or either power supply.
- High Common-Mode and Differential Voltage Ranges: Suitable for a wide range of input voltages.
- No Frequency Compensation Required: Internal frequency compensation ensures stability without external components.
- No Latch-Up: Prevents the device from entering an unintended state.
- Unity-Gain Stability: Stable operation in unity-gain configurations.
- Slew Rate of 0.5 V/μs: The rate at which the output voltage can change in response to input changes.
Applications
- DVD Recorders and Players: Used in audio and video signal processing.
- Pro Audio Mixers: Utilized for audio signal amplification and processing.
- Voltage Followers: Ideal for applications requiring high input impedance and low output impedance.
Q & A
- What is the operating temperature range of the µA741CDG4?
The device operates from 0°C to 70°C.
- What is the maximum supply voltage for the µA741CDG4?
The maximum supply voltage is ±18 V.
- Does the µA741CDG4 require external frequency compensation?
No, the device has internal frequency compensation and does not require external components for stability.
- How can the input offset voltage be adjusted in the µA741CDG4?
The input offset voltage can be adjusted using the external offset null pins.
- What is the slew rate of the µA741CDG4?
The slew rate is 0.5 V/μs.
- Is the µA741CDG4 protected against short circuits?
- What are some common applications of the µA741CDG4?
Common applications include DVD recorders and players, pro audio mixers, and voltage followers.
- What package types are available for the µA741CDG4?
The device is available in an 8-pin SOIC package.
- How should power supply bypass capacitors be used with the µA741CDG4?
0.1-μF bypass capacitors should be placed close to the power-supply pins to reduce noise from the power supply.
- What are the key specifications to consider when using the µA741CDG4?
Key specifications include supply voltage, input offset voltage, offset voltage adjust range, input offset current, input bias current, and common-mode input voltage range.
