X95820
®
Low Noise/Low Power/2-Wire Bus/256 Taps
Data Sheet
September 26, 2005
FN8212.1
Dual Digital Controlled Potentiometers
(XDCP™)
The X95820 integrates two digitally controlled
potentiometers (XDCP) on a monolithic CMOS integrated
circuit.
Features
• Two potentiometers in one package
• 256 resistor taps-0.4% resolution
• 2-wire serial interface
• Wiper resistance: 70Ω typical @ 3.3V
• Non-volatile storage of wiper position
• Standby current < 5µA max
• Power supply: 2.7V to 5.5V
• 50kΩ, 10kΩ total resistance
• High reliability
The digitally controlled potentiometers are implemented with
a combination of resistor elements and CMOS switches. The
position of the wipers are controlled by the user through the
2-wire bus interface. Each 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 two
DCP’s IVR to the corresponding WRs.
- Endurance: 150,000 data changes per bit per register
- Register data retention: 50 years @ T ≤ 75°C
The DCPs can be used as three-terminal potentiometers or
as two-terminal variable resistors in a wide variety of
applications including control, parameter adjustments, and
signal processing.
• 14 Ld TSSOP
• Pb-free plus anneal available (RoHS compliant)
Pinouts
Ordering Information
X95820
(14 LD TSSOP)
TOP VIEW
PART
RESISTANCE
OPTION
PART NUMBER
MARKING
PACKAGE
V
X95820WV14I-2.7* X95820WV G
10kΩ
10kΩ
14 Ld TSSOP
CC
14
13
1
2
3
4
5
6
7
A1
WP
RH0
RL0
A0
X95820WV14IZ-2.7* X95820WV Z G
(See Note)
14 Ld TSSOP
(Pb-free)
RH1
12
11
RL1
RW1
GND
X95820UV14I-2.7*
X95820UV G
50kΩ
14 Ld TSSOP
RW0
10
9
*Add "T1" suffix for tape and reel.
A2
NOTE: Intersil Pb-free plus anneal products employ special Pb-free
material sets; molding compounds/die attach materials and 100% matte
tin plate termination finish, which are 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.
SCL
SDA
8
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 Americas Inc. Copyright Intersil Americas Inc. 2005. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
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