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Renesas Electronics Components Datasheet

ISL22419 Datasheet

Single Digitally Controlled Potentiometer

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OBSOLETE PRODUCT
DATASHEET
POSSIBLE SUBSTITUTE PRODUCT
ISL22419
ISL22416
FN6311
Single Digitally Controlled Potentiometer (XDCP™) Low Noise, Low Power, SPI®
Rev 1.00
Bus, 128 Taps, Wiper Only
September 8, 2009
The ISL22419 integrates a single digitally controlled
potentiometer (DCP) and non-volatile memory on a
monolithic CMOS integrated circuit.
The digitally controlled potentiometer is implemented with a
combination of resistor elements and CMOS switches. The
position of the wiper is controlled by the user through the SPI
serial interface. The 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 content of the
DCP’s IVR to the WR.
The DCP can be used as a voltage divider in a wide variety
of applications including control, parameter adjustments, AC
measurement and signal processing.
Pinout
SCK
SDO
SDI
CS
ISL22419
(8 LD MSOP)
TOP VIEW
18
27
36
45
VCC
RW
SHDN
GND
Features
• 128 resistor taps
• SPI serial interface
• Non-volatile storage of wiper position
• Wiper resistance: 70typical @ 3.3V
• Shutdown mode
• Shutdown current 5µA max
• Power supply: 2.7V to 5.5V
• 50kor 10ktotal resistance
• High reliability
- Endurance: 1,000,000 data changes per bit per register
- Register data retention: 50 years @ T+55°C
• 8 Lead MSOP
• Pb-free (RoHS compliant)
Ordering Information
PART
NUMBER
PART
MARKING
RESISTANCE OPTION TEMP. RANGE
(k)
(°C)
PACKAGE
(Pb-free)
PKG.
DWG. #
ISL22419UFU8Z*
419UZ
50
-40 to +125 8 Ld MSOP
M8.118
ISL22419WFU8Z*
419WZ
10
-40 to +125 8 Ld MSOP
M8.118
*Add “-TK” suffix for tape and reel. Please refer to TB347 for details on reel specifications.
NOTE: 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.
FN6311 Rev 1.00
September 8, 2009
Page 1 of 13


Renesas Electronics Components Datasheet

ISL22419 Datasheet

Single Digitally Controlled Potentiometer

No Preview Available !

ISL22419
Block Diagram
SCK
SDO
SDI
CS
SPI
INTERFACE
VCC
POWER UP
INTERFACE,
CONTROL
AND
STATUS
LOGIC
WR
RW
SHDN
NON-VOLATILE
REGISTERS
Pin Descriptions
MSOP PIN
1
2
3
4
5
6
7
8
SYMBOL
SCK
SDO
SDI
CS
GND
SHDN
RW
VCC
GND
DESCRIPTION
SPI interface clock input
Open Drain Data Output of the SPI serial interface
Data Input of the SPI serial interface
Chip Select active low input
Device ground pin
Shutdown active low input
“Wper” terminal of DCP
Power supply pin
FN6311 Rev 1.00
September 8, 2009
Page 2 of 13


Part Number ISL22419
Description Single Digitally Controlled Potentiometer
Maker Renesas
Total Page 13 Pages
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