LH0070-2H

PMIC - Voltage Reference: LH0070-2H Application Field and Working Principle

LH0070-2H is a voltage/current reference IC. A voltage reference is an electronic component that generates a stable and precise reference voltage and provides strong immunity to external noise and temperature-induced variations. The LH0070-2H is especially suitable for low-noise applications. Its internal voltage regulation, current calibration, and buffer capacity make it ideal for selecting accurately referenced voltage and current.

Application Field

The LH0070-2H has been widely implemented in a variety of applications, including low-noise power supplies, signal conditioning circuits, precision instrumentation, microprocessor-based instrumentation, and digital signal processing. Due to its precise and stable reference voltage and current capabilities, it is particularly suitable for use in high-precision and secure systems.

Working Principle

The LH0070-2H references a stable voltage or precise current to provide a No Load or Load Resistance output circuit. The voltage reference is a combination of linear, precision and temperature-compensating components. It also has an integrated buffer amplifier that isolates the reference circuit short-circuit protection. The reference voltage or current output is adjusted by adjusting the voltage applied to the reference control input. The output voltage is directly proportional to the control voltage.

In addition, the LH0070-2H offers high accuracy and excellent stability. The device includes a precision, temperature-compensated zener reference, which provides high accuracy and low temperature drift. The output voltage can be adjusted simply by connecting a resistor to the voltage control input. The resistor can be used to achieve output voltage regulation of +/- 0.01V.

The buffer amplifier on the LH0070-2H provides user protection from short-circuit conditions and isolates the reference circuit from the system without causing any significant drop in accuracy. Additionally, this device has a wide range of operating temperatures from -40 to +85°C and is suitable for usage in extreme conditions.

Conclusion

The LH0070-2H is a voltage/current reference IC that can provide precise and stable outputs. It is designed to provide highly accurate reference voltages and current outputs and to meet a wide range of noise immunity and temperature-induced requirements. The reference voltage or current output is adjustable by adjusting the voltage applied to the reference control input and the output voltage is directly proportional to the control voltage. This device is ideal for low-noise power supplies, signal conditioning circuits, precision instrumentation, microprocessor-based instrumentation, and digital signal processing.