DS1267E-100 Maxim Integrated Products, DS1267E-100 Datasheet
DS1267E-100
Specifications of DS1267E-100
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DS1267E-100 Summary of contents
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FEATURES § Ultra-low power 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 § 14-pin ...
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DESCRIPTION The DS1267 Dual Digital Potentiometer Chip consists of two digitally controlled, solid-state potentiometers. Each potentiometer is composed of 256 resistive sections. Between each resistive section and both ends of the potentiometer are tap points which are accessible to the ...
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DS1267 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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STACKED CONFIGURATION The potentiometers of the DS1267 can be connected in series as shown in Figure 3. This is referred to as the stacked configuration. The stacked configuration allows the user to double the total end-to-end resistance of the part ...
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The C output of the DS1267 can be used to drive the DQ input of another DS1267. When connecting OUT multiple devices, the total number of bits transmitted is always 17 times the number of DS1267s in the daisy chain. ...
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LINEARITY MEASUREMENT CONFIGURATION Figure 5 NOTE: In this setup, a ±2% delta in total resistance would cause a ±2.5 MI error. DS1267 ABSOLUTE AND RELATIVE LINEARITY Figure 6 TYPICAL APPLICATION CONFIGURATIONS Figures 7 and 8 show two ...
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INVERTING VARIABLE GAIN AMPLIFIER Figure 7 FIX GAIN ATTENUATOR Figure DS1267 102199 ...
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ABSOLUTE MAXIMUM RATINGS* Voltage on Any Pin Relative to Ground (VB=GND) Voltage on Resistor Pins when VB=-5.5V Voltage Operating Temperature Storage Temperature Soldering Temperature * This is a stress rating only and functional operation of the device ...
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ANALOG RESISTOR CHARACTERISTICS (- + PARAMETER End-to-End Resistor Tolerance Absolute Linearity Relative Linearity -3 dB Cutoff Frequency Temperature Coefficient CAPACITANCE PARAMETER Input Capacitance Output Capacitance AC ELECTRICAL CHARACTERISTICS PARAMETER CLK Frequency Width of CLK Pulse Data ...
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Relative linearity is used to determine the change in voltage between successive tap positions. Device test limits ±0.5 LSB. 5. Typical values are for T = 25°C and nominal supply voltage cutoff frequency characteristics for ...
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END OF COMMUNICATION TRANSACTION DIGITAL OUTPUT LOAD SCHEMATIC Figure DS1267 102199 ...
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TYPICAL SUPPLY CURENT VS. SERIAL CLOCK RATE Figure DS1267 102199 ...