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Product Detailed Parameters
- Description：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：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：8-SOIC
- Grade：Automotive
- Qualification：AEC-Q100
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Overview
The LM4040CIMX-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 0.5%. The device operates within an industrial temperature range of -40°C to +85°C and features a maximum temperature coefficient of 150 ppm/°C. It is housed in the SOT-23-3 surface-mount package.
Feature Summary
- Provides stable fixed output voltage over the industrial temperature range
- Designed for space-saving applications using compact SOT-23-3 packages
- Features ultra-low operating current suitable for power-restricted designs
Applications
- Portable battery-powered equipment
- Data acquisition systems
- Handheld instruments
Procurement Notes
Verify the manufacturer designation as National Semiconductor or Texas Instruments on the component marking. Confirm the suffix 'CIMX' corresponds to the specific 10.0 V output voltage and 0.5% accuracy grade. Ensure the package type matches the required SOT-23-3 footprint for your PCB layout.
Selection Notes
Select this component when a fixed 10.0 V reference is required in a low-power application. The 0.5% initial accuracy and 150 ppm/°C temperature coefficient define its precision limits. Consider the SOT-23-3 package size constraints and the maximum shunt current capability during circuit design.
Part Context
This component belongs to the LM4040 family of micropower shunt voltage 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. Different suffixes indicate varying accuracy grades such as A (0.1%), B (0.2%), C (0.5%), and D (1%).
Replacement Considerations
LM4040AIM3X-10.0/NOPB: Offers higher 0.1% accuracy and lower temperature coefficient.
FAQ
What is the maximum operating current for the LM4040CIMX-10.0?
The maximum shunt current is typically 15 mA.
Does the LM4040CIMX-10.0 support shutdown mode?
No, the standard LM4040 series does not include a shutdown feature.
