REF01CSA+

PMIC - Voltage Reference

A voltage reference is a component used in electronic circuits to maintain a constant output voltage regardless of any variation in input current or load current in the circuit. One of the most common types of voltage references used today is the REF01CSA+.

The REF01CSA+ is a monolithic integrated voltage reference IC with an adjustable output range of 1.15V to 6.80V. It is designed to provide ultra-low noise, extremely stable precision output voltage. This makes it an ideal choice for applications such as analog-to-digital converters (ADC), digital-to-analog converters (DAC), data acquisition systems, and various consumer electronic devices.

Working Principle

The REF01CSA+ voltage reference is designed around a band-gap circuit with an internal temperature compensation circuit. The band-gap circuit’s supply voltage and temperature independent operation ensures the reference output is not affected by the variations of supply voltage or temperature. By dynamically adjusting the voltage reference’s reference voltage range, the REF01CSA+ can be used in a wide range of application settings.

The band gap reference design also ensures low temperature drift; due to the combination of the full band gap circuit and the temperature compensation circuit, the REF01CSA+ can maintain a very stable output voltage within specified temperature ranges. The overall low noise of the circuit is due to the elements used in the band gap circuitry, which have relatively low impedance values, allowing for smoother voltage output.

Applications

The REF01CSA+ is ideal for various voltage reference applications, such as voltage-controlled oscillators (VCOs), ADC and DAC instrumentation, contactless switching applications, and precision pre-determined adjustment of calibration constants. The low temperature drift, low noise, and high accuracy make it suitable for analog applications, measuring systems, as well as in automotive, industrial, and medical systems.

In medical systems, the REF01CSA+ can be used to provide a reference voltage to drive medical imaging detectors. The high accuracy and tight accuracy are beneficial in ensuring high image quality and precise measurement. The REF01CSA+ can also be used in automotive applications to provide a reference voltage to control the fuel injection system, enabling precise control and accurate power delivery.

In industrial systems, the REF01CSA+ can be used to provide a switchable power supply, enabling quick and precise adjustments of voltage levels in the system. It can also be used in current-controlled switch applications, providing a precise output voltage in response to an input current.

Overall, the REF01CSA+ voltage reference is a great choice for various voltage reference applications, providing accurate, low-noise and low-temperature drift reference voltage outputs.