Key facts
- Brand
- Analog Devices
- Model
- REF02
- Industry
- Industrial
- Documents
- 5
- Languages
- EN
- Last added
- 2012-08-03
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Analog Devices AN-18 REF-02 Thermometer Applications
This document details electronic thermometer applications using the REF-02 +5V Voltage Reference. It explains that the device's predictable 2.1mV/°C temperature coefficient allows for direct voltage measurements of temperature. The guide covers circuit implementation, including basic and complete schematics with operational amplifiers and resistors for scaling and level shifting.
Read onlineAnalog Devices REF02 specifications
| Output Voltage (REF01) | 10.0 V |
|---|---|
| Output Voltage (REF02) | 5.0 V |
| Output Voltage (REF03) | 2.5 V |
| Temperature Coefficient (REF01) | 8.5 ppm/°C |
| Temperature Coefficient (REF03) | 50 ppm/°C |
| Voltage Noise (REF01) | 30 μV p-p |
| Voltage Noise (REF02) | 15 μV p-p |
| Voltage Noise (REF03) | 6 μV p-p |
| Maximum Supply Voltage | 36 V |
| Maximum Load Current | 10 mA |
Source: Analog Devices REF01/REF02/REF03 Precision Voltage Reference Datasheet
All Analog Devices REF02 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
How to use the product for one specific task, with worked examples.
Questions answered in these manuals
What is the temperature coefficient of the REF-02 TEMP output?
The REF-02 has a predictable temperature coefficient of 2.1mV/°C for its TEMP output.
Can the REF-02 be used for remote temperature sensing?
Yes, but a 1.5kΩ resistor must be connected between Pin 3 (TEMP) and the cable conductor to isolate the pin from cable capacitances.
What is the maximum output voltage for the REF01?
The maximum output voltage for the REF01 is 10.0 V.
From: Analog Devices REF01/REF02/REF03 Precision Voltage Reference Datasheet
What is the typical voltage noise for the REF03?
The typical voltage noise for the REF03 is 6 μV p-p.
From: Analog Devices REF01/REF02/REF03 Precision Voltage Reference Datasheet
What is the output voltage of the REF02?
The REF02 provides a 5 V output with a tolerance of ±0.3 %.
From: Analog Devices REF02 Precision Voltage Reference/Temperature Transducer Datasheet
What is the temperature coefficient of the REF02?
The temperature coefficient is 1.96 mV per degree Celsius.
From: Analog Devices REF02 Precision Voltage Reference/Temperature Transducer Datasheet