Overview
The TLE2142AMDRG4 is a dual low-noise, high-speed precision operational amplifier manufactured by Texas Instruments. It is part of the TLE214x and TLE214xA series, known for their high-performance and internally compensated design using the Excalibur process. These amplifiers are pin-compatible upgrades to standard industry products and are renowned for their low audio-band noise, high slew rates, and fast settling times, making them suitable for a variety of high-fidelity and high-speed applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage | ±2 V to ±22 V | V |
| Differential Input Voltage | ±44 V | V |
| Input Offset Voltage (Vos) | 1.5 mV (max at 25°C) | mV |
| Input Bias Current | 1.5 nA | nA |
| Common Mode Rejection Ratio (CMRR) | 85 dB | dB |
| Supply Voltage Rejection Ratio (SVRR) | 90 dB | dB |
| Slew Rate | 40 V/μs (typical) | V/μs |
| Gain Bandwidth Product | 5.8 MHz | MHz |
| Settling Time (0.1% of 10-V step) | 340 ns | ns |
| Output Current (short-circuit) | 20 mA (min) | mA |
| Operating Temperature Range | −40°C to 105°C (I-suffix) | °C |
Key Features
- Low Noise: 10.5 nV/√Hz at 1 kHz, making it suitable for high-fidelity audio applications.
- High Slew Rate: 40 V/μs typical, ensuring fast response times.
- Fast Settling Time: 340 ns to 0.1% of a 10-V step, useful in fast actuator/positioning drivers.
- High Gain-Bandwidth Product: 5.8 MHz, providing a wide bandwidth for various applications.
- Low Input Offset Voltage: 1.5 mV maximum at 25°C, ensuring high precision.
- Wide Supply Voltage Range: Single or split supply operation from 4 V to 44 V.
- High Output Swing: Nearly rail-to-rail output swing under light current-loading conditions.
- Stability with Capacitive Loads: Stable with loads up to 10 nF.
Applications
- High-Fidelity Audio: Due to its low noise and high slew rates, it is ideal for audio applications requiring high fidelity.
- Fast Actuator/Positioning Drivers: The fast settling time makes it suitable for applications requiring quick and precise positioning.
- Sample-and-Hold Circuits: Useful for low-droop sample-and-hold applications.
- Buffering Long Cables: Including 4-mA to 20-mA current loops.
- Comparators: Can be used as comparators due to their high performance and stability.
Q & A
- What is the typical slew rate of the TLE2142AMDRG4?
The typical slew rate is 40 V/μs.
- What is the maximum input offset voltage at 25°C?
The maximum input offset voltage is 1.5 mV.
- What is the gain-bandwidth product of the TLE2142AMDRG4?
The gain-bandwidth product is 5.8 MHz.
- What is the settling time to 0.1% of a 10-V step?
The settling time is 340 ns.
- What is the common-mode rejection ratio (CMRR) of the TLE2142AMDRG4?
The CMRR is 85 dB.
- What is the supply voltage range for the TLE2142AMDRG4?
The supply voltage range is from 4 V to 44 V.
- Can the TLE2142AMDRG4 be used as a comparator?
- What is the maximum output current in short-circuit conditions?
The minimum short-circuit output current is 20 mA.
- What is the operating temperature range for the I-suffix devices?
The operating temperature range is from −40°C to 105°C.
- How stable is the TLE2142AMDRG4 with capacitive loads?
