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Product Detailed Parameters
- Description：IC VREF SHUNT 0.1% SOT23-3
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT),Bulk
- Output Type：Fixed
- Voltage - Output (Min/Fixed)：8.192V
- 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 LM4040A82IDBZT is a precision micropower shunt voltage reference manufactured by Texas Instruments. It provides a fixed output voltage of 8.192V with an initial accuracy of ±0.1% and a maximum temperature coefficient of 100ppm/°C. The device operates within a cathode current range of 45μA to 15mA and functions over an ambient temperature range of –40°C to 85°C. It is housed in a space-saving SOT-23-3 package.
Feature Summary
- Maintains stable output voltage across wide operating currents and temperatures due to low dynamic impedance and low noise characteristics.
- Operates without external capacitors while remaining stable with all capacitive loads.
- Utilizes fuse and Zener-zap reverse breakdown voltage trim during wafer sort to achieve tight output tolerances.
Applications
- Data-Acquisition Systems
- Energy Infrastructure
- Analog Input Module
- Field Transmitters
- Precision Audio
Procurement Notes
Verify the specific suffix 'DBZT' against the latest TI Package Option Addendum to confirm the exact SOT-23-3 packaging configuration and reel specifications. Ensure the component grade matches the required industrial temperature range for your design environment.
Selection Notes
Select this part when an 8.192V reference with high precision (0.1%) is required in a compact surface-mount footprint. Consider the minimum operating current of 45μA for battery-powered designs and verify that the load current remains within the 15mA maximum limit.
Part Context
This component belongs to the LM4040 series of shunt voltage references, which are designed for versatile applications requiring easy-to-use, precise voltage standards. The series offers multiple voltage options and grades to balance cost and performance requirements for various electronic systems.
Replacement Considerations
LM4040B82IDBZT
FAQ
Does the LM4040A82IDBZT require an output capacitor?
No, the device requires no external capacitors for operation and is stable with all capacitive loads.
What is the recommended connection for the NC pin?
The NC pin must float or connect to the anode. In high electromagnetic interference environments, connecting it to the anode is recommended.
