ISL22316
®
Single Digitally Controlled Potentiometer (XDCP™)
Data Sheet
September 1, 2009
FN6186.2
2
Low Noise, Low Power I C™ Bus,
128 Taps
Features
• 128 resistor taps
The ISL22316 integrates a single digitally controlled
potentiometer (DCP) and non-volatile memory on a
monolithic CMOS integrated circuit.
2
• I C serial interface
- Two address pins, up to four devices/bus
• Non-volatile storage of wiper position
The digitally controlled potentiometer is implemented with a
combination of resistor elements and CMOS switches. The
position of the wipers are controlled by the user through the
• Wiper resistance: 70Ω typical @ V
• Shutdown mode
= 3.3V
CC
2
I C bus interface. The potentiometer has an associated
• Shutdown current 5µA max
• Power supply: 2.7V to 5.5V
• 50kΩ or 10kΩ total resistance
• High reliability
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.
- Endurance: 1,000,000 data changes per bit per register
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.
- Register data retention: 50 years @ T ≤ +55°C
• 10 Ld MSOP or 10 Ld TDFN package
• Pb-free (RoHS compliant)
Pinouts
ISL22316
(10 LD MSOP)
TOP VIEW
ISL22316
(10 LD TDFN)
TOP VIEW
O
10
1
2
3
4
5
VCC
RH
SCL
SDA
A1
SCL
1
10 VCC
9
8
7
6
2
3
RH
9
SDA
A1
RW
RL
8
7
6
RW
RL
A0
A0
4
5
SHDN
GND
GND
SHDN
Ordering Information
PART NUMBER
(Note)
PART
MARKING
RESISTANCE OPTION
TEMP. RANGE
(°C)
PACKAGE
(Pb-free)
(kΩ)
PKG. DWG. #
M10.118
ISL22316UFU10Z*
ISL22316WFU10Z*
ISL22316UFRT10Z*
ISL22316WFRT10Z*
316UZ
316WZ
50
-40 to +125
-40 to +125
-40 to +125
-40 to +125
10 Ld MSOP
10
10 Ld MSOP
M10.118
316U
316W
50
10 Ld 3x3 TDFN
10 Ld 3x3 TDFN
L10.3x3B
L10.3x3B
10
*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.
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1
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