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X9408

Renesas
Part Number X9408
Manufacturer Renesas
Description Quad Digitally Potentiometer
Published Jun 3, 2020
Detailed Description DATASHEET X9408 Low Noise/Low Power/2-Wire Bus Quad Digitally Controlled (XDCP™) Potentiometers FN8191 Rev.4.00 Januar...
Datasheet PDF File X9408 PDF File

X9408
X9408

Overview
DATASHEET X9408 Low Noise/Low Power/2-Wire Bus Quad Digitally Controlled (XDCP™) Potentiometers FN8191 Rev.
4.
00 January 15, 2009 Description The X9408 integrates four digitally controlled potentiometers (XDCP) on a monolithic CMOS integrated circuit.
The digital controlled potentiometer is implemented using 63 resistive elements in a series array.
Between each element are tap points connected to the wiper terminal through switches.
The position of the wiper on the array is controlled by the user through the 2-wire bus interface.
Each potentiometer has associated with it a volatile Wiper Counter Register (WCR) and four non-volatile Data Registers that can be directly written to and read by the user.
The contents of the WCR controls the position of the wiper on the resistor array though the switches.
Power-up recalls the contents of the default data register (DR0) to the WCR.
The XDCP can be used as a three-terminal potentiometer or as a two terminal variable resistor in a wide variety of applications including control, parameter adjustments, and signal processing.
Features • Four Potentiometers in One Package • 64 Resistor Taps per Potentiometer • 2-wire Serial Interface • Wiper Resistance, 40 Typical at 5V • Four Nonvolatile Data Registers for Each Pot • Nonvolatile Storage of Wiper Position • Standby Current < 1µA max (Total Package) • VCC = 2.
7V to 5.
5V Operation V+ = 2.
7V to 5.
5V V- = -2.
7V to -5.
5V • 10k, 2.
5k End to End Resistances • High reliability • Endurance–100,000 Data Changes Per Bit Per Register • Register Data Retention–100 years • 24 Ld SOIC, 24 Ld TSSOP, 24 Ld PDIP Packages • Pb-Free (RoHS Compliant) Block Diagram VCC VSS V+ V- WP SCL SDA A0 A1 A2 A3 INTERFACE AND CONTROL CIRCUITRY 8 DATA POT 0 R0 R1 WIPER COUNTER REGISTER R2 R3 (WCR) VH0/RH0 VL0/RL0 VW0/RW0 R0 R1 WIPER COUNTER REGISTER R2 R3 (WCR) RESISTOR ARRAY POT 2 VH2/RH2 VL2/RL2 VW2/RW2 VW1/RW1 R0 R1 WIPER COUNTER REGISTER R2 R3 (WCR) RESISTOR ARRAY POT 1 VH1/RH1 VL1/...


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