AD5689R datasheet(25/28 Pages) AD

Part #	AD5689R

Description	Dual, 16-/12-Bit nanoDAC with 2 ppm/째C Reference, SPI Interface

PDF	28 Pages

Scroll/Zoom	100%

Manufacturer	AD [Analog Devices]

Direct Link	http://www.analog.com

Logo

25 / 28 page

Data Sheet

AD5689R/AD5687R

Rev. 0 | Page 25 of 28

THERMAL HYSTERESIS

Thermal hysteresis is the voltage difference induced on the refer-

ence voltage by sweeping the temperature from ambient to cold,

to hot, and then back to ambient.

Thermal hysteresis data is shown in Figure 51. It is measured

by sweeping the temperature from ambient to −40°C, next to

+105°C, and then returning to ambient. The VREF delta is then

measured between the two ambient measurements and shown

in blue in Figure 51. The same temperature sweep and measure-

ments are immediately repeated and the results are shown in

red in Figure 51.

Figure 51. Thermal Hysteresis

–50

–100

–150

–200

DISTORTION (ppm)

FIRST TEMPERATURE SWEEP

SUBSEQUENT TEMPERATURE SWEEPS

AD5689R Datasheet(PDF) 25 Page - Analog Devices