ZHCSBK1C December 2006 – January 2018 DAC8560
PRODUCTION DATA.
Typical noise performance for the DAC8560 with the internal reference enabled is shown in Figure 40 to Figure 42. Output noise spectral density at pin VOUT versus frequency is depicted in Figure 40 for full-scale, midscale, and zero-scale input codes. The typical noise density for midscale code is 170 nV/√Hz at 1 kHz and 100nV/√Hz at 1MHz. High-frequency noise can be improved by filtering the reference noise as shown in Figure 41, where a 4-μF load capacitor is connected to the VREF pin and compared to the no-load condition. Integrated output noise between 0.1 Hz and 10 Hz is close to 50 μVPP (midscale), as shown in Figure 42.