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DS1804

Maxim Integrated
Part Number DS1804
Manufacturer Maxim Integrated
Description Nonvolatile Trimmer Potentiometer
Published Jul 21, 2016
Detailed Description 19-5876; Rev 6/11 DS1804 Nonvolatile Trimmer Potentiometer FEATURES  Single 100-Position Taper Potentiometer  Nonvol...
Datasheet PDF File DS1804 PDF File

DS1804
DS1804

Overview
19-5876; Rev 6/11 DS1804 Nonvolatile Trimmer Potentiometer FEATURES  Single 100-Position Taper Potentiometer  Nonvolatile (NV) On-Demand Wiper Storage  Operates from 3V or 5V Supplies  Up/Down, Increment-Controlled Interface  Available in 8-Pin (300 mils) DIP, 8-Pin (150 mils) SO, and 8-Pin (118 mils) µSOP  -40°C to +85°C Operating Temperature Range  Standard Resistance Values: – DS1804-010: 10kΩ – DS1804-050: 50kΩ – DS1804-100: 100kΩ PIN ASSIGNMENT INC 1 U/D 2 H3 GND 4 8 VCC 7 CS 6L 5W DIP (300 mils) SO (150 mils) μSOP (118 mils) PIN DESCRIPTION H - High-Terminal of Potentiometer L - Low-Terminal of Potentiometer W - Wiper of Potentiometer VCC - 3V or 5V Power Supply CS - Chip Select U/ D - Up/Down Control INC - Increment/Decrement Wiper Control GND - Ground DESCRIPTION The DS1804 NV trimmer potentiometer is a nonvolatile digital potentiometer that has 100 positions.
The device provides an ideal method for low-cost trimming applications using a CPU or manual control input with minimal external circuitry.
Wiper position of the DS1804 can be stored in EEPROM memory on demand.
The device’s wiper position is manipulated by a three-terminal port that provides an increment/ decrement counter controlled interface.
This port consists of the control inputs CS , INC , and U/ D .
The DS1804 is available in three resistor grades, which include a 10kΩ, 50kΩ, and 100kΩ.
The device is provided in an industrial temperature grade.
Additionally, the DS1804 will operate from 3V or 5V supplies and is ideal for portable application requirements.
Three packaging options are available and include the 8-pin (300 mils) DIP, 8-pin (150 mils) SO, and 8-pin (118 mils) μSOP.
1 of 10 DS1804 OPERATION The DS1804 is a single nonvolatile potentiometer.
The device has a total of 100 tap-points including the L- and H- terminals.
A total of 99 resistive segments exist between the L- and H- terminals.
These tappoints are accessible to the W-terminal, whose position is control...


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