DS1868BS-050 IC Chip SO-16 Dual 256-Position Digital Potentiometers Digital To Analog Converters

The DS1868BS-050 is a dual 256-position digital potentiometer in 16-Pin SO, with an EEPROM that keeps both wiper settings when power is removed. The -050 option sets each element to 50 kilohms.

Wipers are written and read back through a 3-wire serial port, and the integrated EEPROM removes the need for a backup supply or a separate non-volatile memory in the calibration path.

Standby current is 1 microamp maximum, so the device can hold its settings in battery-backed equipment. Operation covers minus 40 to plus 85 degrees C on a single +5 V rail or plus or minus 3 V rails.

Because settings survive power cycles, the DS1868BS-050 is suited to factory calibration that must persist across field service and to products where the trim value is not recomputed at every boot.

The DS1868BS-050 is RoHS compliant and lead free, and every order ships with full traceability. Samples and volume pricing are available on request.

• Dual 256-position digital potentiometers
• EEPROM retains wiper settings without power
• Resistance 50 kilohms per element
• Standby current 1 microamp maximum
• 3-wire serial control interface
• Wipers digitally set and read through serial port
• Single +5 V or plus or minus 3 V supplies
• minus 40 to plus 85 degrees C operation
• 16-Pin SO package
• RoHS compliant, lead free

• Calibration held without power
• Audio level control
• LCD bias and contrast
• Programmable gain trim
• Sensor offset adjustment

Typical use is non-volatile resistance trimming that must survive power cycling.

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