AD5672R datasheet(30/34 Pages) AD

Part #	AD5672R

Description	Octal, 12-/16-Bit nanoDAC with ppm/째C Reference, SPI Interface

PDF	34 Pages

Scroll/Zoom	100%

Manufacturer	AD [Analog Devices]

Direct Link	http://www.analog.com

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30 / 34 page

Data Sheet

AD5672R/AD5676R

Rev. B | Page 30 of 34

THERMAL HYSTERESIS

Thermal hysteresis is the voltage difference induced on the

reference voltage by sweeping the temperature from ambient to

cold, to hot, and then back to ambient.

Figure 67 shows thermal hysteresis data. It is measured by

sweeping the temperature from ambient to −40°C, then to

+125°C, and returning to ambient. The VREF delta, shown in

blue in Figure 67, is then measured between the two ambient

measurements. The same temperature sweep and measurements

were immediately repeated and the results are shown in red in

Figure 67.

–130 –110

–90

–70

–50

–30

–10

DISTORTION (ppm)

FIRST TEMPERATURE SWEEP

SUBSEQUENT TEMPERATURE SWEEPS

Figure 67. Thermal Hysteresis

AD5672R Datasheet(PDF) 30 Page - Analog Devices