JAJSFQ0A July 2018 – November 2018 DAC61408 , DAC71408 , DAC81408
PRODUCTION DATA.
The DAx1408 include a 2.5-V bandgap reference with a typical temperature drift of 5 ppm/ºC. The internal reference is externally available at the REF pin. An external buffer amplifier with a high impedance input is required to drive any external load.
A minimum 150-nF capacitor is recommended between the reference output and GND for noise filtering. A compensation capacitor (330 pF, typical) should be connected between the REFCMP pin and REFGND.
Operation from an external reference is also supported by powering down the internal reference. The external reference is applied to the REF pin.