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ISL22326WM Datasheet

Dual Digitally Controlled Potentiometers

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DATASHEET
ISL22326WM
Dual Digitally Controlled Potentiometers (XDCP™) Low Noise, Low Power, I2C
Bus, 128 Taps
FN6623
Rev 1.00
November 11, 2011
The ISL22326WMVEP integrates two digitally controlled
potentiometers (XDCP) and non-volatile memory on a
monolithic CMOS integrated circuit.
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
I2C 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.
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.
Device Information
The specifications for an Enhanced Product (EP) device are
defined in a Vendor Item Drawing (VID), which is controlled
by the Defense Logistics Agency (DLA). “Hot-links” to the
applicable VID and other supporting application information
are provided on our website.
Pinout
VCC
SHDN
RH0
RL0
RW0
A2
SCL
ISL22326WMVEP
(14 LD TSSOP)
TOP VIEW
1 14
2 13
3 12
4 11
5 10
69
78
A1
A0
RH1
RL1
RW1
GND
SDA
Features
• Specifications per DLA VID V62/08604-01XE
• Full Mil-Temp Electrical Performance from -55°C to +125°C
• Controlled Baseline with One Wafer Fabrication Site and
One Assembly/Test Site
• Full Homogeneous Lot Processing in Wafer Fab
• No Combination of Wafer Fabrication Lots in Assembly
• Full Traceability Through Assembly and Test by
Date/Trace Code Assignment
• Enhanced Process Change Notification
• Enhanced Obsolescence Management
• Eliminates Need for Up-Screening a COTS Component
• Two Potentiometers in One Package
• 128 Resistor Taps
• I2C Serial Interface
- Three Address Pins, Up To Eight Devices/Bus
• Non-volatile Storage of Wiper Position
• Wiper Resistance: 70Typical @ 3.3V
• Shutdown Mode
• Shutdown Current 5µA Max
• Power Supply: 2.7V to 5.5V
• 10kTotal Resistance
• High Reliability
- Endurance: 1,000,000 Data Changes Per Bit Per
Register
- Register Data Retention:
- 10 years @ T +125°C
- 15 years @ T +90°C
- 50 years @ T +55°C
• 14 Ld TSSOP
Ordering Information
VENDOR PART NUMBER
RESISTANCE OPTION
(Notes 1, 2)
VENDOR ITEM DRAWING PART MARKING
(k)
ISL22326WMVEP
V62/08604-01XE
22326 WMVEP
10
NOTES:
1. Add “-TK” suffix for tape and reel. Please refer to TB347 for details on reel specifications.
2. Devices must be procured to the VENDOR PART NUMBER.
TEMP.
RANGE
(°C)
PKG.
PACKAGE DWG. #
-55 to +125 14 Ld TSSOP M14.173
FN6623 Rev 1.00
November 11, 2011
Page 1 of 3


Intersil Electronic Components Datasheet

ISL22326WM Datasheet

Dual Digitally Controlled Potentiometers

No Preview Available !

ISL22326WM
Block Diagram
SCL
SDA
A0
A1
A2
I2C
INTERFACE
SHDN
VCC
POWER-UP
INTERFACE,
CONTROL
AND STATUS
LOGIC
NON-
VOLATILE
REGISTERS
WR1
WR0
RH1
RW1
RL1
RH0
RW0
RL0
Pin Descriptions
TSSOP PIN
1
2
3
4
5
6
7
8
9
10
11
12
13
14
SYMBOL
VCC
SHDN
RH0
RL0
RW0
A2
SCL
SDA
GND
RW1
RL1
RH1
A0
A1
GND
DESCRIPTION
Power supply pin
Shutdown active low input
“High” terminal of DCP0
“Low” terminal of DCP0
“Wiper” terminal of DCP0
Device address input for the I2C interface
Open drain I2C interface clock input
Open drain Serial data I/O for the I2C interface
Device ground pin
“Wiper” terminal of DCP1
“Low” terminal of DCP1
“High” terminal of DCP1
Device address input for the I2C interface
Device address input for the I2C interface
FN6623 Rev 1.00
November 11, 2011
Page 2 of 3


Part Number ISL22326WM
Description Dual Digitally Controlled Potentiometers
Maker Intersil
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