Overview
The REF5025IDRG4 is a precision voltage reference integrated circuit manufactured by Texas Instruments. It belongs to the REF50xx family of low-noise, very low-drift, high-precision voltage references. This device is designed to provide a stable and accurate voltage reference, making it suitable for various high-precision applications.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Output Voltage (VOUT) | 2.495 | 2.5 | 2.505 | V |
| Initial Accuracy (High Grade) | -0.05% | 0.05% | ||
| Initial Accuracy (Standard Grade) | -0.1% | 0.1% | ||
| Output Voltage Temperature Drift (High Grade) | 3 ppm/°C | |||
| Output Voltage Temperature Drift (Standard Grade) | 8 ppm/°C | |||
| Line Regulation | 0.1 | 1 ppm/V | ||
| Load Regulation | 20 | 30 ppm/mA | ||
| Noise (0.1 Hz to 10 Hz) | 3 µVPP/V | |||
| Output Current | -7 | 10 mA | ||
| Supply Voltage | 2.7 | 18 V | ||
| Operating Temperature Range | -40 | 125 °C |
Key Features
- Low Temperature Drift: High-grade options offer a maximum temperature drift of 3 ppm/°C, while standard-grade options offer up to 8 ppm/°C.
- Low Noise: The device features low noise, with output voltage noise of 3 µVPP/V in the frequency range of 0.1 Hz to 10 Hz.
- High Output Current: Capable of sourcing and sinking up to ±7 mA of current.
- High Accuracy: Initial accuracy of ±0.05% for high-grade and ±0.1% for standard-grade options.
- Robust Line and Load Regulation: Excellent line and load regulation, ensuring stable output voltage across various operating conditions.
- Extended Temperature Range: Available in military temperature ranges from –55°C to +210°C for the REF5025-HT version.
Applications
- 16-Bit Data Acquisition Systems: Suitable for high-precision data acquisition due to its low noise and drift characteristics.
- ATE Equipment: Used in Automated Test Equipment for precise voltage referencing.
- Industrial Process Control: Ideal for industrial applications requiring stable and accurate voltage references.
- Medical Instrumentation: Used in medical devices where high precision and stability are critical).
- Precision Instrumentation: Suitable for various precision instrumentation applications).
- Optical Control Systems: Used in optical control systems requiring high accuracy and stability).
Q & A
- What is the output voltage of the REF5025IDRG4?
The output voltage of the REF5025IDRG4 is 2.5 V, with an initial accuracy of ±0.05% for high-grade and ±0.1% for standard-grade options).
- What is the temperature drift of the REF5025IDRG4?
The temperature drift is up to 3 ppm/°C for high-grade and up to 8 ppm/°C for standard-grade options).
- What is the noise level of the REF5025IDRG4?
The output voltage noise is 3 µVPP/V in the frequency range of 0.1 Hz to 10 Hz).
- What is the maximum output current of the REF5025IDRG4?
The device can source and sink up to ±7 mA of current).
- What is the operating temperature range of the REF5025IDRG4?
The operating temperature range is from –40°C to 125°C, with extended ranges available for the REF5025-HT version).
- What are the typical applications of the REF5025IDRG4?
Typical applications include 16-bit data acquisition systems, ATE equipment, industrial process control, medical instrumentation, and precision instrumentation).
- What is the minimum supply voltage required for the REF5025IDRG4?
The minimum supply voltage is 2.7 V for VOUT ≤ 2.5 V).
- How does the REF5025IDRG4 perform in terms of line and load regulation?
The device offers excellent line and load regulation, ensuring stable output voltage across various operating conditions).
- Is the REF5025IDRG4 available in different packages?
Yes, the REF5025IDRG4 is available in various packages, including HKJ and HKQ packages, as well as Known-Good-Die (KGD) form).
- What is the quiescent current of the REF5025IDRG4?
The quiescent current ranges from 0.8 to 1.2 mA).
