ISL22316 Datasheet, PDF (1/15 Pages) Intersil Corporation – Single Digitally Controlled Potentiometer XDCP

ISL22316
®
Single Digitally Controlled Potentiometer (XDCP™)
Data Sheet
September 1, 2009
FN6186.2
Low Noise, Low Power I²C^™ Bus,
128 Taps
The ISL22316 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 wipers are controlled by the user through the
I²C bus 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.
Pinouts
SCL
SDA
A1
A0
SHDN
ISL22316
(10 LD MSOP)
TOP VIEW
1
10
2
9
3
8
4
7
5
6
VCC
RH
RW
RL
GND
Features
• 128 resistor taps
• I²C serial interface
- Two address pins, up to four devices/bus
• 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 or 10 Ld TDFN package
• Pb-free (RoHS compliant)
ISL22316
(10 LD TDFN)
TOP VIEW
SCL 1 ^O
SDA 2
A1 3
A0 4
SHDN 5
10 VCC
9 RH
8 RW
7 RL
6 GND
Ordering Information
PART NUMBER
(Note)
PART
MARKING
RESISTANCE OPTION
(kΩ)
TEMP. RANGE
(°C)
PACKAGE
(Pb-free)
PKG. DWG. #
ISL22316UFU10Z*
316UZ
50
-40 to +125
10 Ld MSOP
M10.118
ISL22316WFU10Z*
316WZ
10
-40 to +125
10 Ld MSOP
M10.118
ISL22316UFRT10Z*
316U
50
-40 to +125
10 Ld 3x3 TDFN
L10.3x3B
ISL22316WFRT10Z*
316W
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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