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Product Detailed Parameters
- Description：IC VREF SHUNT 1% SOT23-3
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR)
- Output Type：Fixed
- Voltage - Output (Min/Fixed)：3V
- 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 LM4040D30IDBZRG4 is a precision micropower shunt voltage reference manufactured by Texas Instruments. It provides a fixed output voltage of 3V with an initial accuracy of ±1%. The device operates within a temperature range of -40°C to +85°C and features a temperature coefficient of 150 ppm/°C. It is housed in a compact SOT-23-3 surface-mount package. The component draws a typical cathode current of 65 µA and supports a maximum shunt current of 15 mA, making it suitable for low-power applications requiring stable voltage references.
Feature Summary
- Provides a fixed 3V precision reference output
- Operates with micropower consumption
- Available in a compact SOT-23-3 surface-mount package
Applications
- Portable battery-powered instrumentation
- Data acquisition systems
- Temperature measurement circuits
Procurement Notes
Verify the complete part number including the 'G4' suffix to ensure compliance with specific manufacturing standards. Confirm that the required accuracy class matches the 'D' designation for ±1% tolerance. Ensure the operating environment remains within the specified -40°C to +85°C temperature range for optimal performance.
Selection Notes
Select this component when a 3V reference with ±1% initial accuracy is required in a small form factor. It is appropriate for designs where power consumption must be minimized but moderate precision is acceptable. Consider the thermal characteristics and package constraints during PCB layout to maintain stability.
Part Context
This device belongs to the LM4040 family of precision shunt voltage references from Texas Instruments. The family offers various output voltages and accuracy grades. The 'D' indicates the accuracy grade, while '30' specifies the 3V output. The 'DBZR' denotes the SOT-23-3 package and reel packaging, and 'G4' signifies lead-free and RoHS compliance.
Replacement Considerations
LM4040D30IDBZR is the non-green variant. LM4040B30IDBZRG4 offers higher accuracy (±0.2%). LM4040A30IDBZRG4 provides even tighter tolerance (±0.1%). Verify pinout compatibility and thermal requirements when substituting.
