Overview
The TLE2426ILPR, produced by Texas Instruments, is a precision virtual ground device known as a "rail splitter." This component is designed to provide a precise output voltage that is always half the input voltage, making it ideal for various analog and mixed-signal applications. The TLE2426 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. It is available in several package options, including the LP (Low Profile) package, which is space-efficient and easy to use.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Input Voltage (VI) | 4 | 40 | V | |
| Output Voltage (VO) at VI = 5 V | 2.48 | 2.5 | 2.52 | V |
| Output Voltage (VO) at VI = 12 V | 5.95 | 6 | 6.05 | V |
| Output Voltage (VO) at VI = 40 V | 19.8 | 20 | 20.2 | V |
| Supply Current (No Load) | 170 | 195 | 300 | µA |
| Operating Temperature Range | 0 | 70 | °C | |
| Sink and Source Current Capability | 20 | mA | ||
| Output Impedance | 7.5 | mΩ | ||
| Noise Reduction Impedance | 110 | kΩ |
Key Features
- Precision Virtual Ground: Provides an output voltage that is exactly half the input voltage, making it ideal for creating a virtual ground in analog circuits.
- Low Impedance Output: Capable of sinking and sourcing up to 20 mA of current while maintaining low output impedance.
- Low Power Consumption: Draws less than 280 µA of supply current over the full input range.
- High Accuracy: Initial output tolerance better than 1% for single 5-V or 12-V systems and 3.6% over the full 40-V input range.
- Noise Reduction: Optional noise-reduction pin and external capacitor (CNR) to reduce peak-to-peak noise and improve line ripple rejection.
- Compact Packaging: Available in space-saving 3-terminal LP package and other options including 8-pin packages for increased performance.
Applications
- Data Acquisition Front End: Ideal for providing a stable virtual ground in data acquisition systems.
- Analog Signal Termination: Used for terminating analog signals to prevent signal degradation.
- Precision Voltage Reference: Serves as a precise voltage reference in various analog and mixed-signal circuits.
- General Analog Circuits: Suitable for any application requiring a precise virtual ground or voltage divider.
Q & A
- What is the primary function of the TLE2426ILPR?
The primary function of the TLE2426ILPR is to provide a precision virtual ground, where the output voltage is exactly half the input voltage.
- What is the input voltage range for the TLE2426ILPR?
The input voltage range for the TLE2426ILPR is from 4 V to 40 V.
- How much current can the TLE2426ILPR sink and source?
The TLE2426ILPR can sink and source up to 20 mA of current.
- What is the typical supply current of the TLE2426ILPR?
The typical supply current of the TLE2426ILPR is less than 280 µA over the full input range.
- What is the output impedance of the TLE2426ILPR?
The output impedance of the TLE2426ILPR is 7.5 mΩ.
- How can noise be reduced in the TLE2426ILPR?
Noise can be reduced by using the optional noise-reduction pin and an external capacitor (CNR).
- What are the common applications of the TLE2426ILPR?
Common applications include data acquisition front ends, analog signal termination, and precision voltage references.
- What are the available package options for the TLE2426ILPR?
The TLE2426ILPR is available in several package options, including the LP (Low Profile) package and 8-pin packages.
- What is the operating temperature range for the TLE2426ILPR?
The operating temperature range for the TLE2426ILPR is from 0°C to 70°C.
- How accurate is the output voltage of the TLE2426ILPR?
The initial output tolerance is better than 1% for single 5-V or 12-V systems and 3.6% over the full 40-V input range.
