DS1806-010+ Maxim Integrated Products, DS1806-010+ Datasheet
DS1806-010+
Specifications of DS1806-010+
Related parts for DS1806-010+
DS1806-010+ Summary of contents
Page 1
... L4-6 - Low Terminal Pots 4 through 6 DESCRIPTION The DS1806 Digital Sextet Potentiometer is a six-channel, digitally controlled, solid-state linear potentiometer. Each potentiometer is comprised of 63 equiresistive sections as illustrated in the block diagram of Figure 1. Each potentiometer has three terminals accessible to the user. These include the high ...
Page 2
... Packages for the device include 20-lead DIPs, SOICs, and TSSOPs. OPERATION A block diagram of the device is provided in Figure 1. As shown, the DS1806 contains six 64-position potentiometers whose wiper positions are set by an 8-bit value. The DS1806 contains a 48-bit I/O shift register which is used to store the respective wiper position data for each of the six potentiometers. ...
Page 3
... All communication transactions should provide the total 48 bits of information when writing or reading from the part. This is especially true for applications using all six potentiometers complete set of 48 bits is not transmitted to the part, undesired wiper position settings may occur. DS1806 BLOCK DIAGRAM Figure 1 WIPER REGISTER CONFIGURATION Figure 2 48-BIT I/O SHIFT REGISTER Figure 3 ...
Page 4
... CASCADE OPERATION A feature of the DS1806 is the ability to control multiple devices from a single processor. Multiple DS1806s can be linked or daisy chained as shown in Figure data bit is entered into the I/O shift register of the DS1806, a bit will appear at the C The LSB of potentiometer-1 will always be the first out of the part at the beginning of a transaction. ...
Page 5
... TYPICAL APPLICATION CONFIGURATIONS Figure 6 shows the typical application configuration of the DS1806 as a fixed gain attenuator. In this configuration, the DS1806 adjusts the attenuation level of the incoming signal. Variations in wiper resistance are minimized by connecting the wiper terminal of the part to a high impedance load. ...
Page 6
... SYMBOL MIN TYP V +2 SYMBOL MIN TYP I 1 400 2 -0 STBY GND-0 (- +85 C) MAX UNITS 5.5 V =2.7 to 5.5V) CC MAX UNITS µA 1000 +0 +0 µ µA V +0.5 µA CC DS1806 NOTES 1 NOTES 1 1 102199 ...
Page 7
... SYMBOL MIN TYP -20 -0.5 -0.25 I CUTOFF 750 SYMBOL MIN TYP OUT (- +85 C;V SYMBOL MIN TYP f DC CLK CDH t PLH HLT t 125 RLT DS1806 =2.7 to 5.5V) CC MAX UNITS NOTES + +0.5 LSB 7 LSB +0. ppm = MAX UNITS NOTES =2.7 to 5.5V) CC MAX UNITS NOTES 10 MHz ...
Page 8
... CC 7. Absolute linearity is to used measure expected wiper voltage versus measured wiper voltage as determined by wiper position. The DS1806 is specified to provide an absolute linearity of 0.5 LSB. 8. Relative linearity is used to determine the change in wiper voltage between two adjacent wiper positions. The DS1806 is specified to provide a relative linearity of 0.25 LSB. ...