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CAT5116VIMSOP Datasheet(PDF) 1 Page - Catalyst Semiconductor |
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CAT5116VIMSOP Datasheet(HTML) 1 Page - Catalyst Semiconductor |
1 / 8 page 1 Doc. No. 2118, Rev. J CAT5116 APPLICATIONS s Automated product calibration s Remote control adjustments s Offset, gain and zero control s Audio volume control s Sensor adjustment s Motor controls and feedback systems s Programmable analog functions FEATURES s 100-position, log-taper potentiometer s Non-volatile EEPROM wiper storage s 10nA ultra-low standby current s Single-supply operation: 2.5V - 5.5V s Increment Up/Down serial interface s Resistance value: 32k Ω Ω Ω Ω Ω s Available in 8-pin MSOP, TSSOP, SOIC and DIP packages automatically reinstated when power is returned. The wiper can be adjusted to test new system values without effecting the stored setting. Wiper-control of the CAT5116 is accomplished with three input control pins, CS, U/D, and INC. The INC input increments the wiper in the direction which is determined by the logic state of the U/ D input. The CS input is used to select the device and also store the wiper position prior to power down. The digitally programmable potentiometer can be used as a three-terminal resistive divider or as a two-terminal variable resistor. FUNCTIONAL DIAGRAM DESCRIPTION The CAT5116 is a log-taper 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, DPP ICs are well suited for applications where equipment requiring periodic adjustment is either difficult to access or located in a hazardous or remote environment. The CAT5116 contains a 100-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 setting, stored in nonvolatile memory, is not lost when the device is powered down and is ALO GEN FR TM LEAD FREE 1 © 2004 by Catalyst Semiconductor, Inc. Characteristics subject to change without notice Doc. No. 2118, Rev. J CAT5116 Log-Taper, 100-Tap Digitally Programmable Potentiometer (DPP™) GENERAL BLOCK DIAGRAM POTENTIOMETER SCHEMATIC EEPROM U /D INC CS INTERFACE & WIPER CONTROL GND Potentiometer R = 32k Ω RW RL RH VCC INCREMENT UP/DOWN CHIP SELECT VCC RH RW RL POR GND U /D INC CS CONTROL AND MEMORY RH RW RL |
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