REF02CPZ Integrated Circuits (ICs)

REF02CPZ is a voltage reference designed to provide a highly accurate output voltage in various voltage reference applications. It is a commonly used voltage reference in the industrial, communications, medical, and automotive fields. The REF02CPZ is significantly smaller than earlier voltage reference designs and offers a wide operating temperature range of -40°C to +125°C.

REF02CPZ consists of a precision laser-trimmed temperature-compensated resistor divider, regulated by a high-precision bandgap reference. The bandgap reference provides a highly stable and accurate output voltage independent of temperature or supply voltage variations. The low noise, high accuracy, and low temperature coefficient make it an ideal choice for critical voltage reference applications.

The main feature of the REF02CPZ is its extremely low output noise. This part has a very low typical noise of 1.75µV RMS (max. 3.5µV RMS). By utilizing a laser-trimmed resistor divider in combination with a high-precision bandgap reference, the REF02CPZ can provide a very accurate and stable output voltage. The output voltage can be adjusted with an external resistor. The reference also has a precision enable pin to provide power up control and enable/disable functions.

The REF02CPZ is suitable for use in a wide range of voltage reference applications. It can provide an accurate and stable reference voltage in medical, automotive and industrial applications, such as a reference voltage for precision current sources, voltage control devices, and analog-to-digital converters. It can also be used as a reference voltage for battery monitoring and power-on-reset circuits.

The working principle of the REF02CPZ is fairly simple and straight-forward. The part consists of a laser trimmed, temperature compensated resistive divider and a high-precision bandgap reference. The bandgap reference provides a highly stable and accurate output voltage independent of any temperature or supply voltage variations. This output voltage is then supplied to the resistive divider, which provides the desired output voltage. The output voltage is further regulated by an enable pin, which is used to control the output voltage.

In summary, the REF02CPZ is a precision voltage reference capable of providing highly accurate and stable output voltage across a wide temperature range. Its low noise and high accuracy enable it to be used in a wide range of voltage reference applications in the industrial, medical, automotive, and communications fields. The part has a simple working principle, which consists of a bandgap reference and resistive divider, and is adjustable using an external resistor.