CAT5115

www.DataSheet4U.com CAT5115 32-Tap Digitally Programmable Potentiometer (DPP™) FEATURES „ 32-position linear taper potentiometer „ Low power CMOS technology „ Single supply operation: 2.5V – 6V „ Increment up/down serial interface „ Resistance values: 10kΩ, 50kΩ and 100kΩ „ Available in PDIP, SOIC, TSSOP, MSOP and space saving 2 x 2.5mm TDFN packages DESCRIPTION The CAT5115 is a single digitally programmable potentiometer (DPP™) designed as a electronic replacement for mechanical potentiometers and trim pots. Ideal for automated adjustments on high volume production lines, they are also well suited for applications where equipment requiring periodic adjustment is either difficult to access or located in a hazardous or remote environment. The CAT5115 contains a 32-tap series resistor array connected between two terminals RH and RL. An up/down counter and decoder that are controlled by three input pins, determines which tap is connected to the wiper, RW. The wiper is always set to the mid point, tap 15 at power up. The tap position is not stored in memory. Wiper-control of the CAT5115 is ¯¯ , U/D ¯, accomplished with three input control pins, CS ¯¯¯ . The INC ¯¯¯ input increments the wiper in the and INC direction which is determined by the logic state of the ¯ input. The CS ¯¯ input is used to select the device. U/D The digitally programmable potentiometer can be used as a three-terminal resistive divider or as a two-terminal variable resistor. DPPs bring variability and pro...