Overview
The REF02HZ is a precision voltage reference IC produced by Analog Devices Inc. It is part of the REF01/REF02/REF03 series, which provides stable voltage outputs with minimal variation in response to changes in supply voltage, ambient temperature, or load conditions. The REF02HZ specifically offers a +5V output voltage with high accuracy and stability, making it suitable for a wide range of applications requiring precise voltage referencing.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Output Voltage | 5.0 V ±0.3% (A and E grades), ±0.5% (H grade and nongraded), ±1% (C grade) | V |
| Input Voltage Range | 7.0 V to 36 V | V |
| Temperature Coefficient | 8.5 ppm/°C (A grade and nongraded), 25 ppm/°C (E and H grades), 65 ppm/°C (C grade) | ppm/°C |
| Line Regulation | 60-150 ppm/V | ppm/V |
| Load Regulation | 10 mA maximum | mA |
| Noise | 15 µV p-p typical | µV p-p |
| Supply Current | 1.4 mA maximum | mA |
| Package Types | 8-lead SOIC, PDIP, CERDIP, TO-99 |
Key Features
- High output accuracy: ±0.3% for A and E grades, ±0.5% for H grade and nongraded, and ±1% for C grade.
- Excellent temperature stability with a temperature coefficient of 8.5 ppm/°C for A grade and nongraded, and up to 65 ppm/°C for C grade.
- Low noise: 15 µV p-p typical.
- High supply voltage range: up to 36 V maximum.
- Low supply current: 1.4 mA maximum.
- High load-driving capability: 10 mA maximum.
- Temperature output function: The TEMP terminal can be used for temperature sensing and approximation with an external buffer and a simple resistor network.
- Adjustable output: The TRIM terminal allows for fine adjustment of the output voltage.
Applications
- Precision data systems
- High resolution converters
- Industrial process control systems
- Precision instruments
- Military and aerospace applications
Q & A
- What is the output voltage of the REF02HZ? The REF02HZ provides a +5V output voltage.
- What is the input voltage range for the REF02HZ? The input voltage range is from 7.0 V to 36 V.
- What is the temperature coefficient of the REF02HZ? The temperature coefficient is 8.5 ppm/°C for A grade and nongraded, and up to 65 ppm/°C for C grade.
- How much noise does the REF02HZ typically produce? The REF02HZ typically produces 15 µV p-p noise.
- What is the maximum supply current of the REF02HZ? The maximum supply current is 1.4 mA.
- Can the output voltage of the REF02HZ be adjusted? Yes, the output voltage can be adjusted using the TRIM terminal.
- What are the package types available for the REF02HZ? The REF02HZ is available in 8-lead SOIC, PDIP, CERDIP, and TO-99 packages.
- What are some common applications of the REF02HZ? Common applications include precision data systems, high resolution converters, industrial process control systems, precision instruments, and military and aerospace applications.
- Can the REF02HZ be used for temperature sensing? Yes, the TEMP terminal can be used for temperature sensing and approximation with an external buffer and a simple resistor network.
- Is the REF02HZ suitable for high-stress applications? Yes, the REF02HZ is suitable for both standard and high-stress applications due to its robust design and packaging options.
