As a point of reference for converter accuracy, voltage references play a critical role in overall system performance. Providing the comparison for all other measurements, a voltage reference's accuracy, noise, and stability (among other specifications) are vital to allowing the converter to produce an accurate measurement (for ADC) or output (for DAC). Using a discrete voltage reference is often desirable when best-in-class tempco, hysteresis, and long-term drift performance are important to the application. Analog Devices offers a wide range of voltage references, from <3 ppm/°C for test, measurement, and instrumentation applications to >50 ppm/°C for power delivery and power management applications.

	"Driving Precision Converters: How to Select the Best Voltage Reference and Amplifier for Your ADC Application" at www.analog.com/onlineseminars.

Protect and Optimize Communications Networks with ADI's New Family of 0.8% Accuracy, Quad Channel Voltage Monitors and Sequencers

Analog Devices introduces several new quad voltage monitors and sequencers with industry-leading, highest accuracy threshold accuracy (0.8%). The 0.8% threshold accuracy specification allows low voltage rails (~1 V) to be accurately monitored and sequenced. The ADM1186 allows power-up and power-down (reverse order) sequencing in hardware using resistors and capacitors. No software support is required. Correct power supply sequencing ensures that the power supply rails come up and are powered down in the correct order and that each rail is within tolerance ensuring more reliable system performance. The cascadability of these devices provides power up and down (reverse sequence) of more than four voltage rails by cascading multiple devices. External capacitors define the time delay between the voltage rails turning on during the power-up sequence and turning the power supplies off during the power-down sequence.

Please click here for the Quad Channel Voltage Monitors and Sequencers selection table.

Back to top