Datasheet > CAT5118TBI-50T3

CAT5118TBI-50T3

更新时间： 2022-04-23 23:00:11

品牌	Logo	应用领域
CATALYST		电位器
页数	文件大小	规格书
15页	289K
描述
32-Tap MiniPot⑩ Digitally Programmable Potentiometers with 2-Wire Interface

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CAT5118TBI-50T3 数据手册

CAT5110, CAT5118, CAT5119, CAT5123, CAT5124, CAT5125

FUNCTIONAL DESCRIPTION

¯¯

The CAT5110/5118/5119/5123/5124/5125 consist of a

fixed resistor and a wiper contact with 32-tap points

that are digitally controlled through a 2-wire up/down

serial interface. Three end-to-end resistance values

are available: 10kΩ, 50kΩ and 100kΩ.

The CS and U/D inputs control the position of the

¯¯

wiper along the resistor array. When CS transitions

from high to low, the part will go into increment mode

if U/D input is high, and into decrement mode when

U/D input is low. Once the mode is set, the device will

¯¯

remain in that mode until CS goes high again. A low-

The CAT5110/5125 is designed to operate as a

potentiometer. In this configuration, the low terminal of

the resistor array is connected to ground (pin 2).

to-high transition at the U/D pin will increment or

decrement the wiper position depending on the

current mode (Figures 1 and 2).

¯¯

When the CS input transitions to high (serial interface

The CAT5118/5123 performs as a variable resistor. In

this device, the wiper terminal and high terminal of the

resistor array are connected at pin 5. The

CAT5119/5124 is a similar variable resistor, except

the low terminal is connected to pin 5.

inactive), the value of the counter is stored and the

wiper position is maintained.

Note that when the wiper reaches the maximum (or

minimum) tap position, the wiper will not wrap around

to the minimum (or maximum) position.

Digital Interface Operation

Power-On Reset

The MiniPots have two modes of operation when the

serial interface is active: increment and decrement

All parts in this family feature power-on reset (POR)

circuitry that sets the wiper position to midscale at

power-up. By default, the chip is in the increment mode.

¯¯

mode. The serial interface is only active when CS is low.

U/D

SETTLE

Note: "W" is not a digital signal. It represents wiper transitions.

Figure 1. Serial Interface Timing Diagram, Increment Mode

U/D

SETTLE

Note: "W" is not a digital signal. It represents wiper transitions.

Figure 2. Serial Interface Timing Diagram, Decrement Mode

Characteristics subject to change without notice

Doc. No. MD-2120 Rev. J

1 2 3 456 7 8...15

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与CAT5118TBI-50T3相关器件

型号	品牌	描述	获取价格	数据表
CAT5118TBI-50-T3	CATALYST	32-Tap MiniPot TM Digitally Programmable Potentiometers with 2-Wire Interface	获取价格
CAT5118TBI-50-T3	ONSEMI	32-Tap MiniPot Digitally Programmable Potentiometers with 2-Wire Interface	获取价格
CAT5118TBI50-T3	ONSEMI	50K DIGITAL POTENTIOMETER, INCREMENT/DECREMENT CONTROL INTERFACE, 32 POSITIONS, PDSO5, HAL	获取价格
CAT5118TPI-00-T	CATALYST	32-Tap MiniPot Digitally Programmable Potentiometers with 2-Wire Interface	获取价格
CAT5118TPI-00-T	ROCHESTER	100K DIGITAL POTENTIOMETER, INCREMENT/DECREMENT CONTROL INTERFACE, 32 POSITIONS, PDSO5, SO	获取价格
CAT5118TPI-00-T10	CATALYST	32-Tap MiniPot Digitally Programmable Potentiometers with 2-Wire Interface	获取价格

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