Overview
The TLE2142ACP is a high-performance, dual operational amplifier from Texas Instruments, built using the Excalibur complementary bipolar process. This device is known for its low noise, high speed, and precision, making it suitable for a variety of demanding applications. It is a pin-compatible upgrade to standard industry operational amplifiers and offers improved specifications such as lower offset voltage and higher slew rates.
Key Specifications
| Parameter | Test Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Input Offset Voltage (VIO) | 25°C | 220 | 900 | 1900 | μV |
| Input Offset Voltage (VIO) Full Range | 2200 | 1800 | μV | ||
| Temperature Coefficient of Input Offset Voltage (αVIO) | Full Range | 1.7 | 1.7 | μV/°C | |
| Positive Slew Rate (SR+) | AVD = −1, RL = 2 kΩ, CL = 500 pF | 40 | 40 | V/μs | |
| Negative Slew Rate (SR−) | AVD = −1, RL = 2 kΩ, CL = 500 pF | 42 | 42 | V/μs | |
| Settling Time to 0.1% | AVD = −1, 2.5-V step, RL = 2 kΩ, CL = 100 pF | 340 | 340 | ns | |
| Settling Time to 0.01% | AVD = −1, 2.5-V step, RL = 2 kΩ, CL = 100 pF | 400 | 400 | ns | |
| Operating Temperature Range | 0°C to 70°C | °C |
Key Features
- Low Audio-Band Noise: 10.5 nV/√Hz with a 10-Hz 1/f corner, making it ideal for high-fidelity audio applications.
- High Slew Rate: Symmetrical 40-V/μs slew rate, useful for fast actuator/positioning drivers.
- Fast Settling Time: 340 ns to 0.1% and 400 ns to 0.01% of a 10-V step with a 2-kΩ/100-pF load.
- Stability with Capacitive Loads: Stable with capacitive loads up to 10 nF.
- Low Distortion and High Power Bandwidth: Important for high-fidelity audio and other precision applications.
Applications
- High-Fidelity Audio: Due to its low noise and high slew rates, it is well-suited for audio applications requiring high precision.
- Fast Actuator/Positioning Drivers: The fast settling time makes it useful in applications requiring quick and precise positioning.
- Sample-and-Hold Circuits: Suitable for low-droop sample-and-hold circuits.
- Direct Buffering of Long Cables: Including 4-mA to 20-mA current loops.
Q & A
- What is the TLE2142ACP? The TLE2142ACP is a dual operational amplifier from Texas Instruments, known for its low noise, high speed, and precision.
- What are the key features of the TLE2142ACP? It includes low audio-band noise, high slew rates, fast settling times, and stability with capacitive loads.
- What are the typical applications of the TLE2142ACP? High-fidelity audio, fast actuator/positioning drivers, sample-and-hold circuits, and direct buffering of long cables.
- What is the operating temperature range of the TLE2142ACP? The operating temperature range is 0°C to 70°C.
- What is the input offset voltage of the TLE2142ACP at 25°C? The input offset voltage at 25°C is typically 900 μV.
- How fast is the slew rate of the TLE2142ACP? The slew rate is typically 40 V/μs for positive and 42 V/μs for negative.
- What is the settling time of the TLE2142ACP to 0.1% and 0.01% of a 10-V step? The settling time is 340 ns to 0.1% and 400 ns to 0.01%.
- Is the TLE2142ACP stable with capacitive loads? Yes, it is stable with capacitive loads up to 10 nF.
- What is the significance of the Excalibur process in the TLE2142ACP? The Excalibur process enhances the device's performance by providing lower noise and higher precision.
- Can the TLE2142ACP be used in high-fidelity audio applications? Yes, it is highly suitable due to its low noise and high slew rates.
