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Product Detailed Parameters
- Description：IC VREF SERIES 5V TO-5
- Series：REF02
- Mfr：Analog Devices Inc.
- Package：Bulk
- Output Type：-
- Voltage - Output (Min/Fixed)：5V
- Voltage - Output (Max)：-
- Current - Output：-
- Operating Temperature：-
- Mounting Type：Through Hole
- Package / Case：TO-205-8, TO-5-8 Metal Can
- Supplier Device Package：TO-5
- Grade：-
- Qualification：-
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Overview
The REF02CH is a precision 5V bandgap voltage reference manufactured by Analog Devices Inc. (formerly Linear Technology). It provides a stable output accurate to ±0.3% with a typical temperature coefficient of 5ppm/°C. The device features low noise, high line rejection, and a quiescent supply current of 1.4mA maximum. It includes a dedicated temperature output pin providing a linear voltage proportional to absolute temperature. The REF02CH is housed in an 8-lead TO-5 metal can package and is guaranteed for operation over the 0°C to 70°C temperature range.
Feature Summary
- Provides a precise 5V output with ±0.3% initial accuracy
- Includes a dedicated pin for linear temperature voltage output
- Features low noise and high line rejection capabilities
- Operates with low supply current consumption
Applications
- A/D and D/A Converters
- Precision Regulators
- Constant Current Sources
- Bridge Excitation
Procurement Notes
Verify the specific suffix 'CH' against official manufacturer documentation to confirm package type and temperature range specifications. Ensure compatibility with existing circuit designs regarding the TO-5 metal can footprint and lead configuration. Confirm availability status through authorized distributors as legacy part numbers may have limited stock or obsolescence notices.
Selection Notes
Select the REF02CH when a stable 5V reference with moderate accuracy and low power consumption is required. Consider the integrated temperature output feature if thermal monitoring is needed within the system. Evaluate the TO-5 package constraints against PCB space requirements. Compare performance metrics against newer alternatives like the ADR02 series for improved drift characteristics if necessary.
Part Context
The REF02CH belongs to the REF-01/REF-02 family of precision voltage references originally developed by Linear Technology Corporation, now part of Analog Devices Inc. This family utilizes bandgap technology to deliver stable outputs over wide operating conditions. The REF-02 variant specifically offers a 5V output and includes a temperature sensing capability, distinguishing it from the 10V REF-01 model.
Replacement Considerations
The LT1019 is listed as a related part with improved specifications and pin compatibility. For new designs, the ADR02 series is recommended as a modern alternative offering lower drift and higher accuracy.
