DS1267BE-010 Dual 256-Tap Digital Potentiometers PDIP-14 IC Chip Digital To Analog Converters

The DS1267BE-010 is a plus or minus 5 V dual digital potentiometer chip with two 256-step resistive elements of 10 kilohms each, the -010 ordering option. Both wipers are set and read back through a 3-wire serial port, with no moving parts or pump noise.

Each potentiometer is 8-bit, and the two can be stacked to form a single 512-step, 9-bit element where finer resolution is needed. The digital interface keeps wiper position stable in vibration and humidity that would move a mechanical trimmer.

The part runs from a single +5 V supply or from plus or minus 5 V rails, which allows bipolar signal level setting. Operating temperature range is minus 40 to plus 85 degrees C, and power consumption is minimal because the design is pumpless.

Because wiper settings are stored digitally, calibration values can be written in production or updated in the field over the serial port. The DS1267BE-010 suits audio level, LCD bias and generic trim applications that previously used mechanical pots.

The DS1267BE-010 is RoHS compliant and lead free, and every order ships with full traceability. Samples and volume pricing are available on request.

• Dual 256-step (8-bit) digital potentiometers
• Resistance 10 kilohms per element
• Stacking configures one 512-step (9-bit) potentiometer
• Wipers set and read through serial port
• 3-wire serial control interface
• Single +5 V or plus or minus 5 V supplies
• Ultra low power, pumpless design
• minus 40 to plus 85 degrees C operation
• 14-pin PDIP package
• RoHS compliant, lead free

• Audio level control
• LCD bias and contrast
• Programmable gain trim
• Sensor calibration
• Replacement for mechanical potentiometers

Typical use is digitally controlled resistance trimming where a mechanical pot would drift or wear.

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