Overview: DATASHEET X95840
Quad Digital Controlled Potentiometers (XDCP™) Low Noise/Low Power/I2C Bus/256 Taps FN8213 Rev 2.00 July 5, 2006 The X95840 integrates four digitally controlled potentiometers (XDCP) on a monolithic CMOS integrated circuit.
The digitally controlled potentiometers are implemented with a combination of resistor elements and CMOS switches. The position of the wipers are controlled by the user through the I2C bus interface. Each potentiometer has an associated volatile Wiper Register (WR) and a non-volatile Initial Value Register (IVR), that can be directly written to and read by the user. The contents of the WR controls the position of the wiper. At power up the device recalls the contents of the four DCP’s IVR to the corresponding WRs.
The DCPs can be used as three-terminal potentiometers or as two-terminal variable resistors in a wide variety of applications including control, parameter adjustments, and signal processing. Ordering Information PART NUMBER PART RESISTANCE MARKING OPTION PACKAGE X95840WV20I-2.7* X95840WV G 10k 20 Ld TSSOP X95840WV20IZ-2.7* X95840WV Z G (Note) 10k 20 Ld TSSOP (Pb-free) X95840UV20I-2.7* X95840UV G
X95840UV20IZ-2.7* X95840UV Z G (Note) 50k 50k 20 Ld TSSOP
20 Ld TSSOP (Pb-free) *Add “T1” suffix for tape and reel. NOTE: Intersil Pb-free plus anneal products employ special Pb-free material sets; molding compounds/die attach materials and 100% matte tin plate termination finish, which are RoHS compliant and compatible with both SnPb and Pb-free soldering operations. Intersil Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020.
