Overview
The TLE2142CDR is a high-performance, dual low-noise, high-speed precision operational amplifier produced by Texas Instruments. It is part of the TLE214x series, which are internally compensated operational amplifiers built using Texas Instruments' complementary bipolar Excalibur process. These amplifiers are designed to be pin-compatible upgrades to standard industry products, offering enhanced performance in various applications.
The TLE2142CDR is particularly noted for its low audio-band noise, high slew rate, and fast settling time, making it suitable for a wide range of applications including high-fidelity audio, fast actuator/positioning drivers, and low-droop sample-and-holds.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Conditions |
|---|---|---|---|---|---|
| Input Offset Voltage (VIO) | 290 | - | 1200 | µV | VIC = 2.5 V, RS = 50 Ω, VO = 2.5 V |
| Temperature Coefficient of Input Offset Voltage | 1.7 | - | - | µV/°C | Full range |
| Input Offset Current (IIO) | 7 | - | 100 | nA | VIC = 2.5 V, RS = 50 Ω, VO = 2.5 V |
| Input Bias Current (IIB) | -0.7 | - | -1.5 | µA | VIC = 2.5 V, RS = 50 Ω, VO = 2.5 V |
| Common-Mode Input Voltage Range (VICR) | -0.3 | - | 3.9 | V | RS = 50 Ω |
| High-Level Output Voltage (VOH) | 3.75 | - | - | V | IOH = -100 µA, VIC = 2.5 V |
| Positive Slew Rate (SR+) | 27 | - | 45 | V/µs | AVD = -1, RL = 2 kΩ, CL = 100 pF |
| Settling Time to 0.1% | 340 | - | - | ns | AVD = -1, 10-V step, 2-kΩ/100-pF load |
| Supply Voltage Range | 4 | - | 44 | V | Single or split supply |
| Operating Temperature Range | 0 | - | 70 | °C | - |
| Package Type | - | - | - | 8-SOIC (D) | - |
Key Features
- Low Noise: 10.5 nV/√Hz at 1 kHz and 15 nV/√Hz at 10 Hz
- High Slew Rate: Minimum of 27 V/µs, typically 45 V/µs
- Fast Settling Time: 340 ns to 0.1% and 400 ns to 0.01% of a 10-V step
- High Gain-Bandwidth Product: 5.9 MHz
- Low Input Offset Voltage: Maximum of 500 µV at 25°C
- Single or Split Supply Operation: 4 V to 44 V
- Large Output Swing: VCC+0.1 V to VCC-1 V
- High Common-Mode Rejection Ratio (CMRR) and Supply-Voltage Rejection Ratio (SVRR): Minimum of 85 dB and 90 dB, respectively
Applications
- High-Fidelity Audio: Due to its low audio-band noise and high slew rate, it is suitable for high-fidelity audio applications
- Fast Actuator/Positioning Drivers: Fast settling time makes it useful for fast actuator and positioning drivers
- Low-Droop Sample-and-Holds: Stable with capacitive loads up to 10 nF, making it suitable for low-droop sample-and-holds
- Direct Buffering of Long Cables: Including 4-mA to 20-mA current loops
Q & A
- What is the input offset voltage of the TLE2142CDR?
The input offset voltage (VIO) is typically 290 µV, with a maximum of 1200 µV at 25°C
- What is the slew rate of the TLE2142CDR?
The positive slew rate is typically 45 V/µs, with a minimum of 27 V/µs
- What is the settling time of the TLE2142CDR?
The settling time to 0.1% is 340 ns, and to 0.01% is 400 ns for a 10-V step
- What is the gain-bandwidth product of the TLE2142CDR?
The gain-bandwidth product is 5.9 MHz
- What is the operating temperature range of the TLE2142CDR?
The operating temperature range is from 0°C to 70°C
- What is the package type of the TLE2142CDR?
The package type is 8-SOIC (D)
- Can the TLE2142CDR operate on a single or split supply?
Yes, it can operate on a single or split supply from 4 V to 44 V
- What is the common-mode rejection ratio (CMRR) of the TLE2142CDR?
The CMRR is a minimum of 85 dB
- What is the supply-voltage rejection ratio (SVRR) of the TLE2142CDR?
The SVRR is a minimum of 90 dB
- Is the TLE2142CDR stable with capacitive loads?
Yes, it is stable with capacitive loads up to 10 nF, although the bandwidth decreases at high loading levels
