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Product Detailed Parameters
- Description：IC VREF SHUNT 0.5% SOT23-3
- 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：TO-236-3, SC-59, SOT-23-3
- Supplier Device Package：SOT-23-3
- Grade：-
- Qualification：-
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Overview
The LM4040CIM3-2.0/NOPB is a micropower shunt voltage reference by Texas Instruments, housed in a SOT-23 package with three pins. It provides a fixed output voltage of 2.048 V with an initial accuracy of ±0.5%. The device features a temperature coefficient of 150 ppm/°C and operates within a supply voltage range from 2.048 V to 5 V. It supports a maximum cathode current of 15 mA and requires a minimum operating current of 60 µA. The component functions across a temperature range of -40°C to +85°C.
Feature Summary
- Provides stable fixed reference voltage for precision applications
- Micropower operation suitable for battery-powered systems
- Compact surface-mount packaging for space-constrained designs
Applications
- Portable instrumentation requiring stable voltage references
- Battery-operated measurement devices
- Data acquisition systems needing precise analog references
Procurement Notes
Verify the specific suffix (e.g., NOPB) against the manufacturer's official documentation to ensure compliance with environmental standards and pinout configuration. Confirm that the sourcing channel provides genuine components with traceable manufacturing dates. Check for any obsolescence notices or lifecycle status updates directly from Texas Instruments before finalizing procurement plans.
Selection Notes
Select this component when a 2.048 V reference with ±0.5% accuracy is required in a SOT-23 form factor. Ensure the application circuit can maintain the minimum cathode current of 60 µA for proper regulation. Consider the 150 ppm/°C temperature coefficient if high thermal stability is critical for the system performance.
Part Context
This part belongs to the LM4040 series of micropower shunt voltage references. The series offers various fixed voltage options and accuracy grades, all sharing similar low-power characteristics and compact packaging. The LM4040CIM3-2.0/NOPB specifically targets applications needing a 2.048 V reference with standard precision in a small outline transistor package.
Replacement Considerations
LM4040CIM3-2.0/NOPB is the direct equivalent with lead-free compliance. Other variants in the LM4040 family may offer different accuracies or voltages but require verification of electrical compatibility.
