ISL22416 Datasheet, PDF (1/14 Pages) Intersil Corporation – Single Digitally Controlled Potentiometer XDCP

ISL22416
®
Single Digitally Controlled Potentiometer (XDCP™)
Data Sheet
September 9, 2009
FN6227.2
Low Noise, Low Power, SPI^® Bus, 128 Taps
The ISL22416 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 contents of the
DCP’s IVR to the WR.
The DCP 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.
Pinout
ISL22416
(10 LD MSOP)
TOP VIEW
SCK
1
SDO
2
SDI
3
CS
4
SHDN
5
10 VCC
9
RH
8
RW
7
RL
6
GND
Features
• 128 resistor taps
• SPI serial interface
• Non-volatile storage of wiper position
• Wiper resistance: 70Ω typical @ V_CC = 3.3V
• Shutdown mode
• Shutdown current 5µA max
• Power supply: 2.7V to 5.5V
• 50kΩ or 10kΩ total resistance
• High reliability
- Endurance: 1,000,000 data changes per bit per register
- Register data retention: 50 years @ T ≤ +55°C
• 10 Ld MSOP and 10 Ld TDFN package
• Pb-free (RoHS compliant)
ISL22416
(10 LD TDFN)
TOP VIEW
SCK 1 ^O
SDO 2
SDI 3
CS 4
SHDN 5
10 VCC
9 RH
8 _RW
7 RL
6 GND
Ordering Information
PART NUMBER
(Note)
RESISTANCE OPTION
PART MARKING
(kΩ)
TEMP. RANGE
(°C)
PACKAGE
(Pb-free)
PKG. DWG. #
ISL22416UFU10Z*
416UZ
50
-40 to +125 10 Ld MSOP
M10.118
ISL22416UFRT10Z*
416U
50
-40 to +125
10 Ld 3x3 TDFN
L10.3x3B
ISL22416WFU10Z*
416WZ
10
-40 to +125 10 Ld MSOP
M10.118
ISL22416WFRT10Z*
416W
10
-40 to +125 10 Ld 3x3 TDFN
L10.3x3B
*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.
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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