LM4040D20IDCKR Precision Micropower Shunt Voltage Reference

The LM4040D20IDCKR is a high-precision, fixed voltage reference from Texas Instruments, designed to provide a stable reference voltage in a wide array of electronic applications. This device is part of the LM4040 series, which is known for its reliability and accuracy in maintaining a fixed voltage over various conditions.

With an output voltage of 2.048V, the LM4040D20IDCKR is ideal for precision data conversion in digital systems, providing a stable reference for analog-to-digital converters (ADCs) and digital-to-analog converters (DACs). Its low dynamic impedance and excellent temperature stability make it suitable for battery-powered devices, portable instrumentation, and automotive electronics where power efficiency and consistency are critical.

The device comes in a compact, surface-mount SC-70 package, which is highly favored for space-constrained applications. The small footprint of the LM4040D20IDCKR allows designers to optimize board space without compromising performance. It operates over a wide current range from 60 µA to 15 mA, offering flexibility across different operating conditions.

Texas Instruments ensures that the LM4040D20IDCKR maintains tight tolerances with a typical temperature coefficient of only 100 ppm/°C, guaranteeing minimal deviation over the operating temperature range of -40°C to 85°C. This precision voltage reference also features a low output noise of 30 µV (RMS) for a 0.1 Hz to 10 Hz bandwidth, which is particularly important for high-resolution measurement systems.

In terms of protection, the LM4040D20IDCKR is designed with robustness in mind. It includes reverse breakdown protection that prevents damage to the device when the voltage at the cathode exceeds the anode voltage. This makes it a secure choice for complex circuits where accidental reverse connection might occur.

Overall, the LM4040D20IDCKR from Texas Instruments is a versatile and precise voltage reference that provides designers with a dependable solution for maintaining accuracy in their electronic systems, making it a valuable component in precision analog applications.