What this dual digital pot brings to the board
The Maxim Integrated DS1267BS-010+T/R is a dual 10kΩ digital potentiometer in a 16-SOIC package, offering two independent channels with 256 wiper taps each and a linear taper. It is controlled via a serial interface and includes a cascade pin for daisy-chaining multiple devices without extra GPIOs. The volatile memory means wiper positions are lost at power-down — the host microcontroller must re-initialize them on every boot. The 5V supply aligns with legacy 5V logic and many MCU rails, though the ±20% end-to-end tolerance and 750ppm/°C temperature coefficient rule it out for precision voltage references or tight-tolerance dividers. Industrial temperature range (-40°C to +85°C) covers factory automation, outdoor telecom, and automotive cabin environments.
256 taps and 900Ω wiper — what they mean for your circuit
Each channel provides 256 wiper positions across the 10kΩ range. The wiper resistance is 900Ω typical.
Volatile memory — power-up sequence matters
Because the wiper register is volatile, the device powers up with the wiper at the mid-scale position.
Cascade pin — scaling channel count without extra pins
The cascade pin allows multiple devices to be chained on a single serial bus.
Sourcing and lifecycle
The DS1267BS-010+T/R is listed as Active and ROHS3 compliant. It is a current-production part, so no last-time-buy or end-of-life risk is indicated. For dual-sourcing options within the same functional family, contact our sourcing team for cross-reference support.