AD5755-1x AD [Analog Devices], AD5755-1x Datasheet - Page 31

• Manufacturer Part Number: AD5755-1x
• Description: Quad Channel, 16-Bit, Serial Input, 4-20mA & Voltage Output DAC, Dynamic Power Control, HART Connectivity
• Manufacturer: AD [Analog Devices]

Preliminary Technical Data
Iout Slew Rate when using the DC-DC
When the AD5755-1 is configured in Iout mode & a step
increase in output current is programmed then the DCDC
converter must increase its output voltage so that Vboost ≈
Iout*Rload+2v. This requires that the output capacitor of the
Rev. PrD | Page 31 of 34
DCDC circuit must also be charge to the new voltage. The
amount of power required to do this is 0.5*C*(Vnew-Vold).
Figure 7. And Figure 8.show Iout settling for a 0 to 24mA step
into a 1kohm load for different caps & inductor/switching
frequency.
AD5755-1