Overview
The TLE2425CDR, produced by Texas Instruments, is a precision virtual ground integrated circuit designed to provide a stable 2.5V reference voltage for analog systems. This 3-terminal device combines a precision micropower voltage reference and a high-performance precision operational amplifier, enhancing system-level performance by increasing dynamic signal range, improving signal-to-noise ratio, reducing distortion, and improving signal accuracy. It simplifies the design process by replacing traditional solutions that involve multiple components such as resistors, capacitors, operational amplifiers, and voltage references.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package Type | SOIC (D) | |
| Pins | 8 | |
| Operating Temperature Range | -55 to 125 | °C |
| Output Voltage | 2.5 | V |
| Output Current Capability | 20 mA (Typ) | |
| Micropower Operation | 170 uA (Typ) | |
| Output Regulation | 45 uV (Typ) at I_O = 0 to 10 mA | |
| Input Regulation | 1.5 uV/V (Typ) | |
| Low-Impedance Output | 0.0075 (Typ) | |
| Temperature Coefficient | 20 ppm/°C (Typ) | |
| Supply Voltage Range | 4 to 40 | V |
Key Features
- 2.5-V Virtual Ground for 5-V/GND Analog Systems
- High Output-Current Capability: Sink or Source up to 20 mA (Typ)
- Micropower Operation: 170 uA (Typ)
- Excellent Regulation Characteristics
- Low-Impedance Output: 0.0075 (Typ)
- Macromodel Included
- Improved Input and Output Regulation
- Reduced Output Impedance and Power Dissipation
Applications
The TLE2425CDR is particularly useful in signal-conditioning applications, especially in data acquisition systems that require high accuracy. It is ideal for systems that need a stable reference voltage to terminate signal grounds, enhancing the performance of analog circuits. Key applications include:
- Signal-conditioning front ends of data acquisition systems
- Analog systems requiring a stable 2.5V reference voltage
- Interfacing with ADCs and DACs
- Systems needing improved dynamic signal range and signal-to-noise ratio
Q & A
- What is the primary function of the TLE2425CDR?
The TLE2425CDR is a precision virtual ground integrated circuit that provides a stable 2.5V reference voltage for analog systems.
- What are the key benefits of using the TLE2425CDR over traditional solutions?
It increases dynamic signal range, improves signal-to-noise ratio, reduces distortion, and improves signal accuracy, while also simplifying the design process.
- What is the output current capability of the TLE2425CDR?
The TLE2425CDR can sink or source up to 20 mA (Typ).
- What is the operating temperature range of the TLE2425CDR?
The operating temperature range is -55°C to 125°C.
- What is the supply voltage range for the TLE2425CDR?
The supply voltage range is 4V to 40V.
- How does the TLE2425CDR improve system performance?
It improves input and output regulation, reduces output impedance, and decreases power dissipation, thereby enhancing system-level performance.
- What types of applications is the TLE2425CDR suitable for?
It is suitable for signal-conditioning applications, especially in data acquisition systems that require high accuracy.
- What package types are available for the TLE2425CDR?
The TLE2425CDR is available in an 8-pin SOIC (D) package.
- Is the TLE2425CDR RoHS compliant?
- What is the typical power consumption of the TLE2425CDR?
The TLE2425CDR operates with a typical current of 170 uA.
- How does the TLE2425CDR simplify the design process?
It replaces traditional solutions that involve multiple components such as resistors, capacitors, operational amplifiers, and voltage references with a single 3-terminal device.
