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Intersil Electronic Components Datasheet

X9259 Datasheet

Quad Digitally-Controlled Potentiometers

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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.


Intersil Electronic Components Datasheet

X9259 Datasheet

Quad Digitally-Controlled Potentiometers

No Preview Available !

X9259
Ordering Information
PART NUMBER
(Notes 1, 3)
PART
MARKING
VCC LIMITS
(V)
RTOTAL
(kΩ)
TEMP RANGE
(°C)
PACKAGE
(RoHS Compliant)
PKG.
DWG. #
X9259US24Z (Note 2)
X9259US Z
5 ±10%
50
0 to +70
24 Ld SOIC
M24.3
X9259UV24Z
X9259UV Z
0 to +70
24 Ld TSSOP
M24.173
X9259US24IZ (Note 2)
X9259US ZI
-40 to +85
24 Ld SOIC
M24.3
X9259UV24IZ (Note 2)
X9259UV ZI
-40 to +85
24 Ld TSSOP
M24.173
X9259US24Z-2.7 (Note 2) X9259US ZF
2.7 to 5.5
0 to +70
24 Ld SOIC
M24.3
X9259US24IZ-2.7 (Note 2) X9259US ZG
-40 to +85
24 Ld SOIC
M24.3
X9259UV24Z-2.7
X9259UV ZF
0 to +70
24 Ld TSSOP
M24.173
X9259UV24IZ-2.7 (Note 2) X9259UV ZG
-40 to +85
24 Ld TSSOP
M24.173
NOTES:
1. 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.
2. Add "T1" suffix for tape and reel.
3. For Moisture Sensitivity Level (MSL), please see product information page for X9259. For more information on MSL, please see tech brief TB363.
Circuit Level Applications
• Vary the gain of a voltage amplifier
• Provide programmable DC reference voltages for comparators
and detectors
• Control the volume in audio circuits
• Trim out the offset voltage error in a voltage amplifier circuit
• Set the output voltage of a voltage regulator
• Trim the resistance in Wheatstone bridge circuits
• Control the gain, characteristic frequency and
Q-factor in filter circuits
• Set the scale factor and zero point in sensor signal
conditioning circuits
• Vary the frequency and duty cycle of timer ICs
• Vary the DC biasing of a pin diode attenuator in RF circuits
• Provide a control variable (I, V, or R) in feedback
circuits
System Level Applications
• Adjust the contrast in LCD displays
• Control the power level of LED transmitters in
communication systems
• Set and regulate the DC biasing point in an RF power amplifier
in wireless systems
• Control the gain in audio and home entertainment systems
• Provide the variable DC bias for tuners in RF wireless systems
• Set the operating points in temperature control
systems
• Control the operating point for sensors in industrial systems
• Trim offset and gain errors in artificial intelligent
systems
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2
FN8169.6
December 12, 2014


Part Number X9259
Description Quad Digitally-Controlled Potentiometers
Maker Intersil Corporation
Total Page 21 Pages
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