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Product Detailed Parameters
- Description：IC VREF SHUNT 1% SC70-5
- Series：-
- Mfr：Texas Instruments
- 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 ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：5-TSSOP, SC-70-5, SOT-353
- Supplier Device Package：SC-70-5
- Grade：-
- Qualification：-
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Overview
The LM4040DIM7-2.0/NOPB is a precision micropower shunt voltage reference manufactured by Texas Instruments. It provides a fixed output voltage of 2.048 V with an initial accuracy of 1%. The device operates within a temperature range of -40°C to +125°C and features a temperature coefficient of 150 ppm/°C. It supports a maximum cathode current of 12 mA and draws a typical operating current of 4.5 µA. The component is housed in a SC-70-5 surface-mount package.
Feature Summary
- Micropower operation with ultra-low quiescent current consumption
- High precision fixed voltage output with tight initial accuracy tolerance
- Extended industrial temperature range capability for harsh environments
- Compact surface-mount packaging for space-constrained designs
Applications
- Portable battery-powered instrumentation systems
- Data acquisition and measurement circuits
- Microprocessor supply monitoring and reset logic
- Precision analog-to-digital converter references
Procurement Notes
Verify the specific suffix DIM7 corresponds to the SC-70-5 package variant when sourcing. Confirm that the 1% accuracy grade meets system requirements, as tighter tolerances are available in other variants. Ensure thermal management aligns with the extended temperature rating during high-current operation.
Selection Notes
Select this component when low power consumption is critical alongside moderate precision requirements. The SC-70-5 package offers a smaller footprint compared to SOT-23 options. Consider the 150 ppm/°C temperature coefficient against stricter stability needs that might require lower drift alternatives.
Part Context
This part belongs to the LM4040-N family of micropower shunt voltage references. It shares functional similarities with other fixed-voltage variants in the series but differs in package type and specific electrical tolerances. The LM4041 series offers adjustable versions, while the LM4140 provides higher precision with increased current consumption.
Replacement Considerations
LM4040CIM3-2.0/NOPB: Offers similar performance in a SOT-23-3 package with 0.5% accuracy. LM4040QDIM3-2.0/NOPB: Automotive-grade version with AEC-Q100 qualification. LM4040DIM3X-2.0/NOPB: Alternative SOT-23-3 variant with comparable specifications.
