DS1806 Digital Sextet Potentiometer Datasheet

DS1806 Digital Sextet Potentiometer

FEATURES
• Six digitally controlled 64-position potentiometers
• 3-Wire Serial Port provides for reading and setting each potentiometer
• Devices can be cascaded for single processor multi-device control
• Standard Resistance Values DS1806-010 - 10K ohm - DS1806-050 - 50K ohm - DS1806-100 - 100K ohm
• Temperature Industrial -40°C to +85° C

DS1806 20-PIN DIP (300 MIL) DS1806S 20-PIN SOIC (300 MIL) DS1806E 20-PIN TSSOP (173 MIL)

The DS1806 is a six-channel digitally controlled solid- state linear potentiometer. Each potentiometer is comprised of 63 equiresistive sections as illustrated in the block diagram of Figure 1. Each potentiometer has three terminals accessible to the user. These include the high side terminals, HX, the wiper terminals, WX, and the low-end terminals, L1-3 and L4-6. Potentiometers 1 through 3 share the same low-end terminal L1-3. And likewise, potentiometers 4 through 6 share the low-end terminal L4-6.

Each wiper’s position is selected via an 8-bit register value. Communication and control of the device is accomplished via a 3-wire serial port interface. This interface in conjunction with a cascade output allows the value of the device wiper settings to be read.

For multiple device and single processor environments, the DS1806 can be cascaded or daisy chained. This feature allows a single processor to control multiple devices.

The DS1806 is available in 10K, 50K and 100K ohm versions and is specified over the industrial temperature range. Packages for the device include 20-lead DIPs, SOICs, and TSSOPs.

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