Rainbow-electronics DS1867 Manual de usuario

1 of 14 102199FEATURES Nonvolatile version of the popular DS1267 Low power consumption, quiet, pumplessdesign Operates from single 5V or ±5V suppli

DS186710 of 14 102199ABSOLUTE MAXIMUM RATINGS*Voltage on Any Pin Relative to Ground (VB=GND) -1.0V to +5.5VVoltage on Resistor Pins when VB=-5.5V -5.5

DS186711 of 14 102199ANALOG RESISTOR CHARACTERISTICS (-40°C to +85°C;VCC= 5V ± 10%)PARAMETER SYMBOL MIN TYP MAX UNITS NOTESEnd-to-End Resistor Toleran

DS186712 of 14 102199NOTES:1. All voltages are referenced to ground.2. Resistor inputs cannot exceed the substrate bias voltage, VB, in the negative d

DS186713 of 14 102199ABSOLUTE AND RELATIVE LINEARITY Figure 10Absolute and Relative Linearity(Normalized to 1 LSB)DIGITAL OUTPUT LOAD SCHEMATIC Figure

DS186714 of 14 102199TYPICAL SUPPLY CURRENT VS. SERIAL CLOCK RATE Figure 12Serial Clock Rate (bits/second)

DS18672 of 14 102199DESCRIPTIONThe DS1867 Dual Digital Potentiometer with EEPROM is the nonvolatile version of the popular DS1267Dual Digital Potentio

DS18673 of 14 102199DS1867 BLOCK DIAGRAM Figure 1

DS18674 of 14 102199TIMING DIAGFRAMS Figure 2(a) 3-Wire Serial Interface General Overview

DS18675 of 14 102199I/O SHIFT REGISTER Figure 317-BIT I/O SHIFT REGISTERTransmission of data always begins with the stack select bit followed by the p

DS18676 of 14 102199The Cout output of the DS1867 can be used to drive the DQ input of another DS1867. When connectingmultiple devices, the total numb

DS18677 of 14 102199POWER-DOWN EEPROM TIMING REQUIREMENTS Figure 6TYPICAL APPLICATION CONFIGURATIONSFigures 7 and 8 show two typical application confi

DS18678 of 14 102199FIXED GAIN ATTENUATOR Figure 8ABSOLUTE AND RELATIVE LINEARITYAbsolute linearity is defined as the difference between the actual me

DS18679 of 14 102199