The LM4041 is a precision micropower shunt voltage reference from Texas Instruments with 1.225V fixed and adjustable outputs, an operating temperature range of -40℃ to 85℃, and is suitable for use in data acquisition systems, power supplies and power supply monitors, instrumentation and test equipment, process control, precision audio, automotive electronics, energy management/metering, and battery-powered equipment.
The LM4041 series of shunt voltage references are versatile, easy-to-use devices that require no external resistors or capacitors for operation. They offer low dynamic impedance, low noise, and a low temperature coefficient to ensure stable output voltage over wide ranges of operating currents and temperatures.
Available in fixed (1.225 V nominal) or adjustable versions (up to 10 V), the LM4041 is characterized for industrial (-40°C to 85°C) and extended (-40°C to 125°C) temperature ranges. The device comes in space-saving SC-70, SOT-23-3, and TO-92 packages.
| Fixed Output Voltage (Nominal) | 1.225 V |
|---|---|
| Adjustable Output Range | 1.225 V to 10 V |
| Operating Current Range (Typ) | 45 µA to 12 mA |
| Output Noise (Wideband) | 20 µVrms |
| Temperature Coefficient (Grade A) | 100 ppm/°C |
| Operating Temperature Range (Industrial) | -40°C to 85°C |
| Operating Temperature Range (Extended) | -40°C to 125°C |
No, the device is stable with all capacitive loads and does not require an output capacitor.
The LM4041 offers four grades with tolerances ranging from 0.1% (Grade A) to 1.0% (Grade D).