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Renesas Electronics Components Datasheet

X9118 Datasheet

Dual Supply/Low Power/1024-Tap/2-Wire Bus Single Digitally-Controlled Potentiometer

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DATASHEET
X9118
Dual Supply/Low Power/1024-Tap/2-Wire Bus Single Digitally-Controlled
(XDCP™) Potentiometer
FN8161
Rev 5.00
April 9, 2014
The X9118 is a single digitally controlled potentiometer
(XDCP) on a monolithic CMOS integrated circuit.
The digital controlled potentiometer is implemented using
1023 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. The
potentiometer has associated with it a volatile Wiper Counter
Register (WCR) and a 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 resistors in a wide variety of
applications including control, parameter adjustments, and
signal processing.
Features
• 1024 resistor taps – 10-bit resolution
• 2-wire serial interface for write, read and transfer
operations of the potentiometer
• Wiper resistance, 40typical @ 5V
• Four non-volatile data registers for each potentiometer
• Non-volatile storage of multiple wiper positions
• Power on recall: Loads saved wiper position on power-up
• Standby current < 15µA Max
• System VCC: 2.7V to 5.5V operation
• Analog V+/V-: -5V to +5V
• 100kend-to-end resistance
• Endurance: 100,000 data changes per bit per register
• 100 years data retention
• 14 Ld TSSOP
• Low power CMOS
• Pb-free (RoHS compliant)
Ordering Information
PART NUMBER
(Notes 1, 2)
PART
MARKING
VCC LIMITS
(V)
POTENTIOMETER
ORGANIZATION
(kΩ)
TEMP
RANGE
(°C)
PACKAGE
(Pb-free)
PKG.
DWG. #
X9118TV14IZ
X9118 TVZI
5 ±10%
100 -40 to +85 14 Ld TSSOP M14.173
X9118TV14IZ-2.7
X9118 TVZG
2.7 to 5.5
100 -40 to +85 14 Ld TSSOP M14.173
X9118TV14Z
X9118 TVZ
5 ±10%
100 0 to +70 14 Ld TSSOP M14.173
X9118TV14Z-2.7
X9118 TVZF
2.7 to 5.5
100 0 to +70 14 Ld TSSOP M14.173
NOTES:
1. These Intersil Pb-free plastic packaged products employ special Pb-free material sets, molding compounds/die attach materials, and 100% matte
tin plate plus anneal (e3 termination finish, which is 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. For Moisture Sensitivity Level (MSL), please see product information page for X9118. For more information on MSL, please see tech brief TB363.
FN8161 Rev 5.00
April 9, 2014
Page 1 of 17


Renesas Electronics Components Datasheet

X9118 Datasheet

Dual Supply/Low Power/1024-Tap/2-Wire Bus Single Digitally-Controlled Potentiometer

No Preview Available !

X9118
Functional Diagram
VCC
RH V+
2-WIRE
BUS
INTERFACE
ADDRESS
DATA
STATUS
BUS
INTERFACE
AND
CONTROL
WRITE
READ
TRANSFER
CONTROL
POWER ON RECALL
WIPER COUNTER
REGISTER (WCR)
DATA REGISTERS
(DR0-DR3)
WIPER
100k
1024-TAPS
POT
VSS
Detailed Functional Diagram
VCC
NC NC
RW RL
V-
V+
SCL
SDA
A1
A0
WP
INTERFACE
AND
CONTROL
CIRCUITRY
DATA
CONTROL
POWER ON
RECALL
DR0 DR1
DR2 DR3
WIPER
COUNTER
REGISTER
(WCR)
100K
1024-TAPS
RH
RL
RW
VSS
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
V-
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
FN8161 Rev 5.00
April 9, 2014
Page 2 of 17


Part Number X9118
Description Dual Supply/Low Power/1024-Tap/2-Wire Bus Single Digitally-Controlled Potentiometer
Maker Renesas
Total Page 17 Pages
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