ISL22346WM_14 Datasheet, PDF (1/3 Pages) Intersil Corporation – Low Noise, Low Power I2C® Bus, 128 Taps

ISL22346WM
Quad Digitally Controlled Potentiometers (XDCP™)
Data Sheet
November 11, 2011
FN6624.1
Low Noise, Low Power I²C^® Bus, 128 Taps
The ISL22346WMVEP integrates four digitally controlled
potentiometers (DCP) 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 a three-terminal potentiometers
or as a 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
ISL22346WMVEP
(20 LD TSSOP)
TOP VIEW
RH3 1
RL3 2
RW3 3
A2 4
SCL 5
SDA 6
GND 7
RW2 8
RL2 9
RH2 10
20 RW0
19 RL0
18 RH0
17 SHDN
16 VCC
15 A1
14 A0
13 RH1
12 RL1
11 RW1
Features
• Specifications per DSCC VID V62/08605-01XE
• 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
• Four 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: 70Ω Typical @ 3.3V
• Shutdown Mode
• Shutdown Current 5µA Max
• Power Supply: 2.7V to 5.5V
• 10kΩ Total 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
• 20 Ld TSSOP
Ordering Information
VENDOR PART NUMBER
RESISTANCE OPTION
(Notes 1, 2)
VENDOR ITEM DRAWING PART MARKING
(kΩ)
ISL22346WMVEP
V62/08605-01XE
22346 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.
PKG.
RANGE (°C) PACKAGE DWG. #
-55 to +125 20 Ld TSSOP M20.173
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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