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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 LM4040A82IDBZR 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 temperature coefficient of 100ppm/°C. The device operates within a cathode current range of 45μA to 15mA and functions at temperatures from -40°C to 85°C. Packaged in a space-saving SOT-23-3 format, it requires no external capacitors for stability.
Feature Summary
- Maintains stable output voltage across wide operating currents and temperatures
- Operates without requiring external output capacitors
- Features low dynamic impedance and low noise characteristics
Applications
- Data-acquisition systems
- Energy infrastructure monitoring
- Analog input modules
- Field transmitters
- Precision audio circuits
Procurement Notes
Verify the specific ordering suffix against the manufacturer's latest package option addendum to confirm pinout and thermal specifications. Ensure the component grade matches the required tolerance for the target application environment. Cross-reference datasheet revision dates to validate parameter consistency before finalizing procurement orders.
Selection Notes
Select this component when high precision is required alongside minimal power consumption. The A-grade classification ensures tight tolerance suitable for sensitive measurement circuits. Verify that the system supply voltage exceeds the 8.192V reference level to allow proper biasing through the series resistor.
Part Context
This part belongs to the LM4040 family of micropower shunt references designed for portable applications. The 'A' designation indicates the highest precision grade available in the series. The 'DBZ' suffix identifies the specific SOT-23 surface-mount package configuration used for compact circuit board layouts.
Replacement Considerations
LM4040B82IDBZR
FAQ
Does the LM4040A82IDBZR require an output capacitor?
No, the device is stable with all capacitive loads and does not require an external output capacitor for operation.
What is the minimum operating current for this reference?
The typical minimum cathode current required for operation is 45μA.
