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Product Detailed Parameters
- Description：IC VREF SHUNT 0.2% TO92-3
- Series：-
- Mfr：National Semiconductor
- Package：Bulk
- 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 LM4040BIZ-2.5 is a micropower shunt voltage reference manufactured by National Semiconductor, now part of Texas Instruments. It provides a fixed output voltage of 2.5 V with an initial accuracy of ±0.2%. The device operates within an industrial temperature range of -40 °C to +125 °C and features a maximum temperature coefficient of 70 ppm/°C. It utilizes a TO-92 package and supports a maximum cathode current of 15 mA.
Feature Summary
- Provides stable reference voltage across the full industrial temperature range
- Delivers high precision with ±0.2% initial accuracy at 25 °C
- Operates with ultra-low quiescent current for power efficiency
- Maintains stability when driving capacitive loads
Applications
- Portable battery-powered instrumentation
- Data acquisition systems requiring precise voltage references
- Handheld meters and test equipment
- Temperature measurement circuits
Procurement Notes
Verify that the component is sourced from authorized distributors to ensure authenticity. Confirm the specific suffix 'I' indicates the industrial temperature grade (-40 °C to +125 °C) and 'Z' denotes the TO-92 package. Check for lead-free compliance status as manufacturing processes may vary between legacy National Semiconductor and current Texas Instruments production runs.
Selection Notes
Select this component when a through-hole TO-92 package is required for prototyping or specific mechanical constraints. The ±0.2% accuracy offers a balance between cost and performance compared to the higher-grade A version. Ensure the circuit design accommodates the minimum operating current requirements typical of shunt references in low-power applications.
Part Context
This part belongs to the LM4040 family of micropower shunt voltage references. The series includes variants with different accuracies (A, B, C, D) and output voltages (2.048 V, 2.5 V, 3.0 V, 4.096 V, 5.0 V). The LM4040BIZ-2.5 specifically targets applications needing better than 0.5% accuracy in a standard transistor-style package.
FAQ
What is the maximum temperature coefficient for the LM4040BIZ-2.5?
The maximum temperature coefficient is 70 ppm/°C over the industrial temperature range.
Does the LM4040BIZ-2.5 support operation with capacitive loads?
Yes, the device is designed to remain stable when used with capacitive loads.
