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Product Detailed Parameters
- Description：IC VREF SHUNT 2.048V SC70
- Series：-
- Mfr：STMicroelectronics
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Type：Fixed
- Voltage - Output (Min/Fixed)：2.048V
- Voltage - Output (Max)：-
- Current - Output：15 mA
- Operating Temperature：-40°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Package / Case：SC-70, SOT-323
- Supplier Device Package：SOT-323-3
- Grade：-
- Qualification：-
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Overview
The LM4040CELT-2.0 is a micropower shunt voltage reference manufactured by STMicroelectronics, providing a fixed output of 2.048 V with ±0.5% initial accuracy. It operates within an industrial temperature range of -40°C to +125°C and features a maximum temperature coefficient of 70 ppm/°C. The device draws only 10 µA at 25°C and exhibits low LF noise of 10 µVp-p. Packaged in SOT-23-3L for surface mount applications, it supports cathode currents up to 15 mA.
Feature Summary
- Ultra-low operating current suitable for power-constrained designs
- High precision with stable performance across wide temperature ranges
- Low-frequency noise characteristics ensure signal integrity
- Capable of driving capacitive loads without instability
Applications
- Portable battery-powered equipment
- Data acquisition systems
- Instrumentation circuits
Procurement Notes
Verify the specific suffix 'CELT' against official datasheets to confirm package type and tape-and-reel specifications. Ensure the manufacturer designation aligns with current STMicroelectronics production lines. Cross-reference RoHS compliance status directly from the latest documentation before procurement.
Selection Notes
Select this component when space-saving SOT-23-3L packaging is required alongside high accuracy. Consider the ±0.5% tolerance if tighter precision is unnecessary. Evaluate the 10 µA quiescent current against system power budgets. Confirm compatibility with existing PCB footprints designed for this specific package style.
Part Context
Part of the LM4040 family of micropower shunt references offering multiple voltage options and accuracy grades. Designed as a drop-in replacement for legacy components requiring stable reference voltages in compact form factors. Widely used in analog signal conditioning where low power consumption is critical.
Replacement Considerations
LM4040BECT-2.0 offers similar electrical characteristics with higher precision. LM4040AELT-2.5 provides alternative voltage and tighter tolerance. Verify pinout compatibility and thermal performance when substituting with other manufacturers' equivalents.
