Overview
The REF5045IDGKT is a part of the REF50xx family of low-noise, very low drift, and high precision voltage references manufactured by Texas Instruments. This component is specifically designed to offer excellent initial voltage accuracy and minimal drift over temperature, making it suitable for applications requiring high stability and precision.
The REF5045IDGKT provides a fixed voltage output of 4.5V and is available in an 8-pin SOIC or VSSOP package. It is designed for use in a wide range of applications where precise voltage referencing is critical.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Output Voltage | - | 4.5 | - | V |
| Input Voltage Range | VOUT + 0.2 | - | 18 | V |
| Operating Temperature Range | -55 | - | 125 | °C |
| Junction Temperature (TJ max) | - | - | 150 | °C |
| Quiescent Current | 0.8 | 1 | 1.2 | mA |
| Output Voltage Temperature Drift (High Grade) | 2.5 | - | 3 | ppm/°C |
| Output Voltage Temperature Drift (Standard Grade) | 3 | - | 8 | ppm/°C |
| Line Regulation | 0.1 | - | 1 | ppm/V |
| Load Regulation | 20 | - | 30 | ppm/mA |
| Turn-on Settling Time (to 0.1% with CL = 1 μF) | - | - | 200 | μs |
Key Features
- Low Noise and Drift: The REF5045IDGKT features low noise and very low temperature drift, making it ideal for high-precision applications.
- Precision Voltage Output: Provides a precise 4.5V output voltage with high initial accuracy and minimal drift over temperature.
- Temperature Monitoring: Includes a temperature monitoring pin (TEMP) that provides a temperature-dependent output voltage, useful for indicating temperature changes or for temperature compensation in analog circuits.
- Low Quiescent Current: Operates with a quiescent current as low as 0.8 mA, which is beneficial for power-sensitive applications.
- Wide Operating Temperature Range: Functions over a wide temperature range from -55°C to 125°C, making it suitable for various environmental conditions.
- High Stability: Exhibits high long-term stability, ensuring that the output voltage remains stable over extended periods of operation.
Applications
- High-Precision Instrumentation: Suitable for use in precision measurement instruments, data acquisition systems, and other high-accuracy applications.
- Industrial Control Systems: Used in industrial control systems where stable and precise voltage references are essential.
- Medical Devices: Applicable in medical devices that require high precision and stability in their voltage references.
- Aerospace and Defense: Employed in aerospace and defense applications where reliability and precision are critical.
- Automotive Systems: Used in automotive systems that demand stable voltage references across various operating conditions.
Q & A
- What is the output voltage of the REF5045IDGKT?
The REF5045IDGKT provides a fixed output voltage of 4.5V.
- What is the operating temperature range of the REF5045IDGKT?
The operating temperature range is from -55°C to 125°C.
- What is the quiescent current of the REF5045IDGKT?
The quiescent current is as low as 0.8 mA.
- Does the REF5045IDGKT have a temperature monitoring feature?
- What is the typical turn-on settling time for the REF5045IDGKT?
The turn-on settling time to 0.1% with a 1 μF capacitor is 200 μs.
- What are the key applications of the REF5045IDGKT?
It is used in high-precision instrumentation, industrial control systems, medical devices, aerospace and defense, and automotive systems.
- What is the line regulation of the REF5045IDGKT?
The line regulation is 0.1 to 1 ppm/V.
- What is the load regulation of the REF5045IDGKT?
The load regulation is 20 to 30 ppm/mA.
- How stable is the output voltage of the REF5045IDGKT over time?
The REF5045IDGKT exhibits high long-term stability, ensuring minimal drift in output voltage over extended periods.
- What is the junction temperature limit for the REF5045IDGKT?
The junction temperature limit is 150°C.
