ISL95811 Datasheet, PDF (1/14 Pages) Intersil Corporation – Single Digitally Controlled Potentiometer (XDCP™)

ISL95811
®
Single Digitally Controlled Potentiometer (XDCP™)
Data Sheet
October 6, 2008
FN6759.1
I²C Bus, 256 Taps, 5 Bytes General
Purpose Memory, Low Noise, Low Power
The ISL95811 integrates a digitally controlled potentiometer
(XDCP) 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 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 content 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 three-terminal potentiometer or as
two-terminal variable resistor in a wide variety of applications
including control, parameter adjustments and signal
processing.
Pinouts
ISL95811
(8 LD MSOP)
TOP VIEW
ISL95811
(8 LD TDFN)
TOP VIEW
WP
1
SCL
2
SDA
3
GND
4
8
V_CC
7
WP ¹
RH
6
RL ^{SCL 2}
5
RW ^{SDA 3}
GND 4
8 V_CC
7 RH
6 RL
5 RW
Features
• 256 Resistor Taps - 0.4% Resolution
• I²C Serial Interface
• 5 General Purpose Non-Volatile Bytes
• Non-volatile Storage of Wiper Position
• Write Protection
• Wiper Resistance: 70Ω Typical @ V_CC = 3.3V
• Standby Current 10µA Max
• Power Supply: 2.7V to 5.5V
• 50kΩ, 10kΩ Total Resistance
• High Reliability
- Endurance: 1,000,000 Data Changes per Bit per
Register
- Register Data Retention: 50 Years @ T ≤ +55°C
• 8 Ld MSOP and 8 Ld TDFN Packaging
• Pb-Free (RoHS compliant)
Ordering Information
PART NUMBER
(Note)
PART
MARKING
R_TOTAL
(kΩ)
TEMP.
RANGE
(°C)
PACKAGE
(Pb-Free)
PKG.
DWG. #
ISL95811WFUZ
5811W
10
-40 to +125 8 Ld MSOP
MDP0043
ISL95811WFUZ-T*
5811W
10
-40 to +125 8 Ld MSOP
MDP0043
ISL95811WFUZ-TK*
5811W
10
-40 to +125 8 Ld MSOP
MDP0043
ISL95811WFRTZ
811W
10
-40 to +125 8 Ld 3x3 TDFN
L8.3x3A
ISL95811WFRTZ-TK*
811W
10
-40 to +125 8 Ld 3x3 TDFN
L8.3x3A
ISL95811UFUZ
5811U
50
-40 to +125 8 Ld MSOP
MDP0043
ISL95811UFUZ-T*
5811U
50
-40 to +125 8 Ld MSOP
MDP0043
ISL95811UFUZ-TK*
5811U
50
-40 to +125 8 Ld MSOP
MDP0043
ISL95811UFRTZ
811U
50
-40 to +125 8 Ld 3x3 TDFN
L8.3x3A
ISL95811UFRTZ-TK*
811U
50
-40 to +125 8 Ld 3x3 TDFN
L8.3x3A
*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.
1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc.
XDCP is a trademark of Intersil Corporation. Copyright Intersil Americas Inc. 2008. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.