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Product Detailed Parameters
- Description：IC VREF SHUNT 0.5% SOT23
- Series：-
- Mfr：Diodes Incorporated
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Type：Fixed
- Voltage - Output (Min/Fixed)：1.22V
- Voltage - Output (Max)：-
- Current - Output：20 mA
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：TO-236-3, SC-59, SOT-23-3
- Supplier Device Package：SOT-23-3
- Grade：-
- Qualification：-
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Overview
The ZXRE125CFTA is a micropower shunt voltage reference providing a fixed 1.22V output with an initial tolerance of ±0.5%. It operates within a current range of 8µA to 20mA and features a typical temperature coefficient of 20ppm/°C. The device is housed in a surface-mount SOT-23 package, supports an operating temperature from -40°C to 85°C, and exhibits a wideband noise voltage of 60µVrms.
Feature Summary
- Bandgap circuit architecture designed for precision micropower applications
- Unconditionally stable operation with high capacitive load tolerance
- Space-saving small outline SOT-23 surface mount packaging
Applications
- Battery powered equipment
- Precision power supplies
- Portable instrumentation
- Data acquisition systems
Procurement Notes
Verify the specific suffix 'C' confirms the 0.5% tolerance grade required for the design. Confirm the 'FTA' designation matches the standard reel size and tape width specifications. Ensure the component status is active, as E-line variants are obsolete. Cross-reference the manufacturer part number against authorized distributors to avoid unauthorized sales channels.
Selection Notes
Select this component when a compact footprint is critical alongside high precision requirements. The low knee current makes it suitable for battery-powered designs where quiescent consumption must be minimized. Verify that the application does not exceed the maximum reverse current rating or operate outside the specified temperature range.
Part Context
This device belongs to the ZXRE125 series of bandgap voltage references manufactured by Diodes Incorporated. It serves as a pin-for-pin compatible replacement for the ZRA124 and ZRA125 series. The C-grade variant specifically targets applications requiring tighter voltage accuracy compared to the D, E, and F grades.
Replacement Considerations
ZXRE125DFTA
FAQ
Is the ZXRE125CFTA unconditionally stable?
Yes, the datasheet specifies that the device is unconditionally stable and highly tolerant of capacitive loads.
What is the minimum operating current for this reference?
The minimum operating current (knee current) is 4µA, though the recommended operating range begins at 8µA.
