X9259 Datasheet: Quad Digitally-Controlled Potentiometers





X9259 Quad Digitally-Controlled Potentiometers Datasheet

Part Number X9259
Description Quad Digitally-Controlled Potentiometers
Manufacture Intersil Corporation
Total Page 21 Pages
PDF Download Download X9259 Datasheet PDF

Features: DATASHEET Single Supply/Low Power/256-T ap/2-Wire Bus Quad Digitally-Controlled (XDCP™) Potentiometers X9259 The X9 259 integrates four digitally controlle d potentiometers (XDCP) on a monolithic CMOS integrated circuit. The digitally controlled potentiometers are implemen ted with a combination of resistor elem ents and CMOS switches. The position of the wipers are controlled by the user through the 2-wire bus interface. Each potentiometer has associated with it a volatile Wiper Counter Register (WCR) a nd four nonvolatile Data Registers that can be directly written to and read by the user. The content of the WCR contr ols the position of the wiper. At power -up, the device recalls the content of the default Data Registers of each DCP (DR00, DR10, DR20, and DR30) to the cor responding WCR. The XDCP can be used as a three-terminal potentiometer or as a two-terminal variable resistor in a wi de variety of applications including co ntrol, parameter adjustments, and signal processing. Features • .

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DATASHEET
Single Supply/Low Power/256-Tap/2-Wire Bus Quad
Digitally-Controlled (XDCP™) Potentiometers
X9259
The X9259 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
2-wire bus interface. Each potentiometer has associated with
it a volatile Wiper Counter Register (WCR) and four nonvolatile
Data Registers that can be directly written to and read by the
user. The content of the WCR controls the position of the wiper.
At power-up, the device recalls the content of the default Data
Registers of each DCP (DR00, DR10, DR20, and DR30) to the
corresponding 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 separate potentiometers in one package
• 256 resistor taps–0.4% resolution
• 2-wire serial interface for write, read, and
transfer operations of the potentiometer
• Wiper resistance: 100Ω typical at VCC = 5V
• 4 nonvolatile data registers for each potentiometer
• Nonvolatile storage of multiple wiper positions
• Standby current <5µA max
• VCC: 2.7V to 5.5V operation
• 50kΩ version of total resistance
• Endurance: 100,000 data changes per bit per register
• 100 year data retention
• Single supply version of X9258
• 24 Ld SOIC, 24 Ld TSSOP
• Low power CMOS
• Pb-Free (RoHS compliant)
Functional Diagram
VCC
RH0
RH1
RH2
RH3
A3
A2
A1
A0
SDA
SCL
2-WIRE
INTERFACE
POWER UP,
INTERFACE
CONTROL
AND
STATUS
WCR0
DR00
DR01
DR02
DR03
DCP0
WCR1
DR10
DR11
DR12
DR13
DCP1
WCR2
DR20
DR21
DR22
DR23
DCP2
WCR3
DR30
DR31
DR32
DR33
DCP3
VSS
WP
RW0 RL0
RW1 RL1
RW2 RL2
RW3 RL3
December 12, 2014
FN8169.6
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 |Copyright Intersil Americas LLC 2005-2007, 2014. All Rights Reserved
Intersil (and design) and XDCP are trademarks owned by Intersil Corporation or one of its subsidiaries.
All other trademarks mentioned are the property of their respective owners.

                    
                    






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