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Product Detailed Parameters
- Description：TWO TERMINAL VOLTAGE REFERENCE,
- Series：-
- Mfr：National Semiconductor
- Package：Bulk
- Output Type：Fixed
- Voltage - Output (Min/Fixed)：10V
- 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 LM4040AIZ-10.0 is a precision micropower shunt voltage reference manufactured by National Semiconductor, now part of Texas Instruments. It provides a fixed output voltage of 10.0 V with an initial accuracy of ±0.1%. The device operates within an industrial temperature range of -40°C to +125°C and features a maximum temperature coefficient of 100 ppm/°C. It utilizes a TO-92 through-hole package with three pins. The unit supports a shunt current up to 15 mA and maintains stability under capacitive loads without requiring external compensation components.
Feature Summary
- Provides high-precision fixed voltage reference with ±0.1% initial accuracy
- Operates stably across the full industrial temperature range from -40°C to +125°C
- Capable of driving capacitive loads without external stabilization components
- Features low dynamic impedance for consistent performance over wide current ranges
Applications
- Precision analog-to-digital converter (ADC) reference sources
- Portable battery-powered instrumentation circuits
- Industrial process control signal conditioning
- Automotive electronic measurement systems
Procurement Notes
Verify the manufacturer designation carefully, as National Semiconductor was acquired by Texas Instruments. Confirm that the specific suffix 'I' corresponds to the intended temperature grade and package variant. Ensure the ordering code matches the required 10.0 V output and TO-92 form factor. Cross-reference the datasheet revision to confirm pinout compatibility with existing designs.
Selection Notes
Select this component when strict voltage accuracy is required in space-constrained or legacy through-hole designs. The ±0.1% tolerance suits applications demanding minimal calibration. Consider the 100 ppm/°C temperature coefficient for environments with significant thermal fluctuations. Evaluate the 15 mA maximum shunt current against the circuit's power dissipation limits.
Part Context
This device belongs to the LM4040 family of micropower shunt references. The family offers various fixed output voltages including 2.048 V, 2.5 V, 3.0 V, 4.096 V, and 5.0 V. While many variants use SOT-23 packages, the AIZ suffix specifically denotes the TO-92 through-hole configuration. The series is designed for applications prioritizing precision and stability over ultra-low cost.
Replacement Considerations
- LM4040AIM3-10.0/NOPB
- LM4040BIM3-10.0/NOPB
FAQ
Does the LM4040AIZ-10.0 require an external capacitor for stability?
No, the device is designed to be stable with any capacitive load and does not require an external stabilization capacitor.
What is the maximum operating temperature for this component?
The component is rated for an industrial temperature range, with a maximum operating temperature of +125°C.
