Overview
The µA741CPSRE4, produced by Texas Instruments, is a general-purpose operational amplifier that has been a popular choice for over four decades. This device features offset-voltage null capability, short-circuit protection, and internal frequency compensation, ensuring stability without the need for external components. The µA741CPSRE4 is characterized for operation from 0°C to 70°C, making it versatile for various applications.
Key Specifications
| Parameter | Test Conditions | MIN | TYP | 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 | ||
| Maximum Peak Output Voltage Swing (VOM) | RL = 10 kΩ | ±12 | ±14 | V | |
| Large-Signal Differential Voltage Amplification (AVD) | RL ≥ 2 kΩ | 20 | 200 | V/mV | |
| Input Resistance (ri) | 0.3 | 2 | MΩ | ||
| Output Resistance (ro) | VO = 0 | 75 | Ω | ||
| Input Capacitance (Ci) | 1.4 | pF | |||
| Common-Mode Rejection Ratio (CMRR) | VIC = VICRmin | 70 | 90 | dB | |
| Supply Voltage Sensitivity (ΔVIO/ΔVCC) | VCC = ±9 V to ±15 V | 30 | 150 | µV/V | |
| Short-Circuit Output Current (IOS) | ±25 | ±40 | mA | ||
| Supply Current (ICC) | VO = 0, no load | 1.7 | 2.8 | mA | |
| Total Power Dissipation (PD) | VO = 0, no load | 50 | 85 | mW | |
| Rise Time (tr) | VI = 20 mV, RL = 2 kΩ, CL = 100 pF | 0.3 | µs | ||
| Slew Rate (SR) | VI = 10 V, RL = 2 kΩ, CL = 100 pF | 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 output can be shorted to ground or either power supply without damaging the device.
- Large 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.
- High Common-Mode Input Voltage Range: Ideal for voltage-follower applications.
- Low Supply Current: Efficient operation with a supply current of 1.7 to 2.8 mA.
Applications
- DVD Recorders and Players: Used in audio and video signal processing.
- Pro Audio Mixers: Utilized for signal amplification and processing in professional audio equipment.
- General-Purpose Amplification: Suitable for a variety of applications requiring stable and reliable amplification.
Q & A
- What is the operating temperature range of the µA741CPSRE4?
The device is characterized for operation from 0°C to 70°C.
- What is the typical input offset voltage of the µA741CPSRE4?
The typical input offset voltage is 6 mV at 25°C.
- Does the µA741CPSRE4 require external frequency compensation?
No, the device has internal frequency compensation and does not require external components for stability.
- What is the slew rate of the µA741CPSRE4?
The slew rate is 0.5 V/µs.
- Can the output of the µA741CPSRE4 be short-circuited?
- What is the common-mode rejection ratio (CMRR) of the µA741CPSRE4?
The CMRR is between 70 dB and 90 dB.
- What is the maximum peak output voltage swing of the µA741CPSRE4?
The maximum peak output voltage swing is ±12 V to ±14 V for a load resistance of 10 kΩ.
- What is the supply voltage range for the µA741CPSRE4?
The device is specified for operation from ±5 V to ±15 V.
- How do you adjust the offset voltage of the µA741CPSRE4?
The offset voltage can be adjusted using a low-value potentiometer connected between the offset null inputs.
- What are some common applications of the µA741CPSRE4?
Common applications include DVD recorders and players, pro audio mixers, and general-purpose amplification.
