Contents
What are voltage references and why voltage references are used?
Voltage references are electronic components, devices or circuits that are designed to deliver a constant DC (direct current) output voltage – in other words, a fixed voltage – irrespective of inconsistencies in other external conditions.
What do we use as a standard for voltage reference?
Temperature Drift This specification is the most widely used to evaluate voltage reference performance, as it shows the change in output voltage over temperature.
Why do we need reference voltage?
A voltage reference is a precision device specifically designed to maintain a constant output voltage, even as parameters such as ambient temperature or supply voltage change. The precision of a voltage reference enables its use in several differ- ent types of applications beyond a data converter.
What can series voltage references be used for?
We also offer series voltage references with low-power consumption and small packages for battery-powered and space-constrained applications. Many of our series voltage references are AEC-Q100 qualified for automotive applications. Power management is at the center of enabling the continued integration of electronics in our lives.
What are two dynamic issues with voltage references?
There are two dynamic issues that must be considered with voltage references: their behavior at start-up, and their behavior with transient loads. With regard to the first, always bear in mind that voltage references do not power up instantly (this is true of references inside power supply regulators, ADCs and DACs as well as discrete designs).
How does a voltage reference maintain a constant drop?
As load current increases, the reference maintains the desired output voltage by changing R, as required, to produce the correct drop between input and output. Applying Ohm’s Law, one notes that to maintain a constant drop between input and output, R must decrease as I OUT increases.
Why are voltage references important in signal chain?
Optimize accuracy and performance of precision signal chain applications in test and measurement, medical instruments, field transmitters and HEV/EV applications with our wide-VIN, low-IQ, high-precision and low-noise series voltage references.