Overview
The TLE2426IDR, produced by Texas Instruments, is a precision virtual ground device known as a "rail splitter." This component is designed to provide a stable output voltage that is exactly half the input voltage, making it ideal for various analog signal processing and voltage reference applications. The TLE2426IDR combines a high-performance, micropower operational amplifier with a precision-trimmed divider on a single silicon chip, ensuring a precise VO/VI ratio of 0.5 while sourcing and sinking current.
This device is available in several package options, including the SOIC (D) package, which is the specific variant of the TLE2426IDR. It operates over a wide input voltage range of 4 V to 40 V and consumes less than 280 µA of supply current, making it a power-efficient solution for analog systems.
Key Specifications
| Parameter | Conditions | Typical | Min | Max |
|---|---|---|---|---|
| Input Voltage (VI) | 4 V | 40 V | ||
| Output Voltage (VO) | VI = 5 V | 2.5 V | 2.48 V | 2.52 V |
| Supply Current (No Load) | VI = 5 V, TA = 25°C | 170 µA | 300 µA | |
| Output Voltage Regulation (Sourcing Current) | IO = 0 to -10 mA, TA = 25°C | -45 µV | ±160 µV | |
| Output Voltage Regulation (Sinking Current) | IO = 0 to 10 mA, TA = 25°C | 15 µV | ±160 µV | |
| Output Impedance | TA = 25°C | 0.0075 Ω | ||
| Operating Free-Air Temperature | 0°C | 70°C | ||
| Short-Circuit Current (Sinking) | VO = 5 V | 26 mA | ||
| Short-Circuit Current (Sourcing) | VO = 0 | -47 mA |
Key Features
- Precision Virtual Ground: Provides an output voltage that is exactly half the input voltage.
- Wide Input Voltage Range: Operates from 4 V to 40 V.
- Low Power Consumption: Typical supply current of 170 µA at 5 V input.
- High Output-Current Capability: Can source and sink up to 20 mA.
- Excellent Output Regulation: Tight output voltage regulation with minimal variation over current and temperature.
- Low-Impedance Output: Output impedance of 0.0075 Ω typical.
- Noise Reduction: Optional noise-reduction pin for improved performance.
Applications
- Data Acquisition Front End: Provides a stable reference voltage for analog-to-digital converters.
- Analog Signal Termination: Used for terminating analog signals to prevent noise and signal degradation.
- Precision Voltage Reference: Serves as a reliable voltage reference in various analog circuits.
- Signal Conditioning: Helps in conditioning analog signals by providing a stable virtual ground.
Q & A
- What is the primary function of the TLE2426IDR?
The primary function of the TLE2426IDR is to provide a precision virtual ground, where the output voltage is exactly half the input voltage.
- What is the input voltage range of the TLE2426IDR?
The input voltage range of the TLE2426IDR is from 4 V to 40 V.
- How much current does the TLE2426IDR typically consume?
The TLE2426IDR typically consumes 170 µA of supply current at an input voltage of 5 V.
- What is the output current capability of the TLE2426IDR?
The TLE2426IDR can source and sink up to 20 mA of current.
- What is the output impedance of the TLE2426IDR?
The output impedance of the TLE2426IDR is typically 0.0075 Ω.
- Does the TLE2426IDR have a noise reduction feature?
Yes, the TLE2426IDR has an optional noise-reduction pin to improve performance by reducing peak-to-peak noise and improving line ripple rejection.
- What are the typical operating temperatures for the TLE2426IDR?
The TLE2426IDR operates over a temperature range of 0°C to 70°C.
- What are some common applications of the TLE2426IDR?
Common applications include data acquisition front ends, analog signal termination, and precision voltage references.
- How does the TLE2426IDR improve system performance?
The TLE2426IDR eliminates a major source of system error by providing a precise and stable virtual ground, reducing noise and improving signal integrity.
- What package options are available for the TLE2426IDR?
The TLE2426IDR is available in several package options, including SOIC (D), ceramic DIP (JG), plastic DIP (P), and others.
