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Product Detailed Parameters
- Description：IC VREF SHUNT 0.5% SOT23-3
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR)
- Output Type：Fixed
- Voltage - Output (Min/Fixed)：1.225V
- Voltage - Output (Max)：-
- Current - Output：12 mA
- Operating Temperature：-40°C ~ 125°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 LM4041CEM3X-1.2 is a precision micropower shunt voltage reference manufactured by Texas Instruments, featuring a fixed output of 1.225 V with an initial accuracy of ±0.5%. It operates within a temperature range of -40°C to +85°C and utilizes a SOT-23-3 surface-mount package. The device supports a wide operating current range from 45 µA (typical) to 12 mA, ensuring stability across varying load conditions without requiring external capacitors.
Feature Summary
- Provides stable reference voltage without external output capacitors for all capacitive loads
- Features low dynamic impedance and low output noise characteristics
- Utilizes Zener-zap trimming technology for precise output tolerance
Applications
- Data acquisition systems
- Portable battery-powered equipment
- Process control instrumentation
Procurement Notes
Verify the specific suffix 'C' indicates the C-grade accuracy tier (±0.5%) and industrial temperature range (-40°C to +85°C). Confirm the 'DEM3X' designation corresponds to the SOT-23-3 plastic package variant. Ensure compatibility with system requirements for 1.225V shunt references before finalizing procurement orders.
Selection Notes
Select this component when a compact, low-power shunt reference is required for industrial applications. The C-grade offers a balance between cost and precision compared to A or B grades. Verify that the 1.225V fixed output meets circuit design needs, as adjustable versions require external resistors.
Part Context
This part belongs to the LM4041-N family of precision micropower shunt voltage references. The series includes various accuracy grades (A, B, C, D) and temperature ranges (Industrial, Automotive Q1). The LM4041CEM3X-1.2 specifically represents the C-grade industrial version in a small outline transistor package.
Replacement Considerations
LM4041CIM3X-1.2/NOPB: Higher grade (0.5% vs 1% typical for D), same package. LM4041DEM3X-1.2/NOPB: Lower grade (1%), same package. LM4041CYM3-1.2-TR: Microchip equivalent, similar specs.
