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Product Detailed Parameters
- Description：IC VREF SHUNT 2% TO92-3
- Series：-
- Mfr：Texas Instruments
- Package：Box
- Output Type：Fixed
- Voltage - Output (Min/Fixed)：2.5V
- Voltage - Output (Max)：-
- Current - Output：15 mA
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Through Hole
- Package / Case：TO-226-3, TO-92-3 (TO-226AA)
- Supplier Device Package：TO-92-3
- Grade：-
- Qualification：-
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Overview
The LM4040EIZ-2.5/NOPB is a micropower shunt voltage reference from Texas Instruments, offering a fixed output of 2.5 V with an initial accuracy of ±2%. Packaged in a TO-92 (TO-226AA) three-pin through-hole format, it operates within a temperature range of -40°C to +85°C. The device features a maximum shunt current of 15 mA and a temperature coefficient of 150 ppm/°C.
Feature Summary
- Provides stable precision voltage referencing via a two-terminal shunt topology
- Designed for micropower applications with low operating current requirements
- Utilizes a robust TO-92 through-hole package suitable for general prototyping
Applications
- Portable battery-powered instrumentation circuits
- Data acquisition systems requiring stable reference voltages
- Microcontroller analog-to-digital converter reference inputs
Procurement Notes
Verify the specific suffix 'E' indicates the ±2% accuracy grade and 'I' denotes the industrial temperature range during procurement. Confirm the 'NOPB' suffix ensures lead-free compliance and RoHS adherence as per manufacturer specifications. Ensure the TO-92 package matches the target PCB footprint requirements before ordering.
Selection Notes
Select this component when a through-hole solution is required for 2.5 V references with moderate precision needs. It serves as a cost-effective alternative to surface-mount variants like the SOT-23 versions when board space allows for larger packages. Consider the 150 ppm/°C temperature coefficient against stricter stability requirements that might necessitate higher-grade options.
Part Context
This part belongs to the LM4040-N series of precision micropower shunt voltage references. The series includes various output voltages and accuracy grades, packaged in both SOT-23 and TO-92 formats. The LM4040EIZ-2.5/NOPB specifically targets industrial applications requiring reliable performance in a traditional through-hole configuration.
Replacement Considerations
LM4040AIZ-2.5/NOPB offers tighter accuracy at ±0.1% in the same package. LM4040BIM3-2.5/NOPB provides ±0.2% accuracy in a surface-mount SOT-23 package. Verify pinout compatibility and thermal characteristics when substituting with other series members.
