Overview
The REF5050IDRG4 is a low-noise, very low drift precision voltage reference from Texas Instruments. It is part of the REF50xx family, known for its high accuracy and stability. This component is designed to provide a precise voltage reference, making it ideal for applications requiring high precision and low noise. The REF5050IDRG4 is available in both high-grade and standard-grade versions, offering different levels of accuracy and temperature drift.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Output Voltage (VOUT) | 4.95 | 5.0 | 5.05 | V |
| Initial Accuracy (High Grade) | -0.05% | 0.05% | ||
| Initial Accuracy (Standard Grade) | -0.1% | 0.1% | ||
| Temperature Drift (High Grade) | 2.5 | 3 | ppm/°C | |
| Temperature Drift (Standard Grade) | 3 | 8 | ppm/°C | |
| Low Frequency Noise (0.1 Hz to 10 Hz) | 3 μVPP/V | |||
| Output Voltage Noise (10 Hz to 1 kHz) | 0.9 μVRMS/V | |||
| Line Regulation | 0.1 | 1 | ppm/V | |
| Load Regulation | 20 | 30 | ppm/mA | |
| Operating Temperature Range | -40 | 125 | °C | |
| Package Type | SOIC-8, VSSOP-8 |
Key Features
- Low temperature drift: High-grade up to 3 ppm/°C and standard-grade up to 8 ppm/°C.
- High accuracy: High-grade ±0.05% and standard-grade ±0.1%.
- Low noise: 3 μVPP/V in the low frequency range and 0.9 μVRMS/V in the 10 Hz to 1 kHz range.
- Excellent long-term stability: 22 ppm after the first 1000 hours for SOIC-8 and 50 ppm for VSSOP-8.
- High-output current capability: ±10 mA.
- Excellent line and load regulation.
- Available in both high-grade and standard-grade versions.
- Temperature range: -40°C to 125°C.
Applications
- Precision data acquisition systems.
- Semiconductor test equipment.
- Industrial process controls.
- Medical instrumentation.
- Pressure and temperature transmitters.
- Lab and field instrumentation.
- Seismic monitoring systems.
Q & A
- What is the output voltage of the REF5050IDRG4?
The output voltage of the REF5050IDRG4 is 5.0 V, with an initial accuracy of ±0.05% for high-grade and ±0.1% for standard-grade versions.
- What is the temperature drift of the REF5050IDRG4?
The temperature drift is up to 3 ppm/°C for high-grade and up to 8 ppm/°C for standard-grade versions.
- What is the noise level of the REF5050IDRG4?
The low frequency noise is 3 μVPP/V, and the output voltage noise from 10 Hz to 1 kHz is 0.9 μVRMS/V.
- What is the operating temperature range of the REF5050IDRG4?
The operating temperature range is -40°C to 125°C.
- What are the available package types for the REF5050IDRG4?
The REF5050IDRG4 is available in SOIC-8 and VSSOP-8 packages.
- What is the long-term stability of the REF5050IDRG4?
The long-term stability is 22 ppm after the first 1000 hours for SOIC-8 and 50 ppm for VSSOP-8.
- What is the maximum output current of the REF5050IDRG4?
The maximum output current is ±10 mA.
- What are some typical applications of the REF5050IDRG4?
Typical applications include precision data acquisition systems, semiconductor test equipment, industrial process controls, medical instrumentation, and pressure and temperature transmitters.
- How does the REF5050IDRG4 handle line and load regulation?
The REF5050IDRG4 has excellent line and load regulation, with line regulation of 0.1 to 1 ppm/V and load regulation of 20 to 30 ppm/mA.
- What is the turn-on settling time of the REF5050IDRG4?
The turn-on settling time to 0.1% is 200 μs with a 1 μF capacitor.
