ds1868e-50t-r Maxim Integrated Products, Inc., ds1868e-50t-r Datasheet
ds1868e-50t-r
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ds1868e-50t-r Summary of contents
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FEATURES § Ultra-lowpower consumption, quiet, pumpless design § Two digitally controlled, 256-position potentiometers § Serial port provides means for setting and reading both potentiometers § Resistors can be connected in series to provide increased total resistance § 20-pin TSSOP, ...
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Communication and control of the device is accomplished via a 3-wire serial port interface. This interface allows the ...
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DS1868 BLOCK DIAGRAM Figure 1 I/O SHIFT REGISTER Figure 2 Transmission of data always begins with the stack select bit followed by the potentiometer-1 wiper position value and lastly the potentiometer-0 wiper position value. When wiper position data is to ...
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If the stack select bit has value 1, the multiplexed output, S potentiometer-1 wiper DS1868 , will be that of the OUT ...
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STACKED CONFIGURATION Figure 3 CASCADE OPERATION A feature of the DS1868 is the ability to control multiple devices from a single processor. Multiple DS1868s can be linked or daisy chained as shown in Figure data bit is ...
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ABSOLUTE AND RELATIVE LINEARITY Absolute linearity is defined as the difference between the actual measured output voltage and the expected output voltage. Figure 5 presents the test circuit used to measure absolute linearity. Absolute linearity is given in terms of ...
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DS1868 ABSOLUTE AND RELATIVE LINEARITY Figure 6 TYPICAL APPLICATION CONFIGURATIONS Figures 7 and 8 show two typical application configurations for the DS1868. By connecting the wiper terminal of the part to a high impedance load, the effects of the wiper ...
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VARIABLE GAIN AMPLIFIER Figure 7 FIXED GAIN ATTENUATOR Figure DS1868 ...
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ABSOLUTE MAXIMUM RATINGS* Voltage on Any Pin Relative to Ground (V Voltage on Any Pin when V =-3.3V B Operating Temperature Storage Temperature Soldering Temperature * This is a stress rating only and functional operation of the device at these ...
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DS1868 ...
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CAPACITANCE PARAMETER Input Capacitance Output Capacitance AC ELECTRICAL CHARACTERISTICS PARAMETER CLK Frequency Width of CLK Pulse Data Setup Time Data Hold Time Propagation Delay Time Low to High Level Clock to Output Propagation Delay Time High to Low Level High ...
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TIMING DIAGRAMS Figure 9 (a) 3-Wire Serial Interface General Overview (b) Start of Communication Transaction (c) End of Communication Transaction DS1868 ...
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DIGITAL OUTPUT LOAD SCHEMATIC Figure 10 TYPICAL SUPPLY CURRENT VS. SERIAL CLOCK RATE Figure DS1868 ...
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DS1868 20-PIN TSSOP DIM MIN MAX 1. 0. 0.75 1. 0.09 0. 0.50 0. 0.65 BSC B MM 0.18 0. 6.40 6. ...