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ISL22424TFR16Z Datenblatt(PDF) 1 Page - Intersil Corporation

Teilenummer ISL22424TFR16Z
Bauteilbeschribung  Low Noise, Low Power, SPI® Bus, 256 Taps
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Hersteller  INTERSIL [Intersil Corporation]
Direct Link  http://www.intersil.com/cda/home
Logo INTERSIL - Intersil Corporation

ISL22424TFR16Z Datenblatt(HTML) 1 Page - Intersil Corporation

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1
FN6425.1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774
| Intersil (and design) and XDCP are registered trademarks of Intersil Americas LLC
Copyright Intersil Americas LLC 2007, 2015. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
ISL22424
Dual Digitally Controlled Potentiometer (XDCP™)
Low Noise, Low Power, SPI® Bus,
256 Taps
The ISL22424 integrates two digitally controlled
potentiometers (DCP), control logic 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 wiper is controlled by the user through the SPI
serial interface. Each potentiometer has an associated
volatile Wiper Register (WRi) and a non-volatile Initial Value
Register (IVRi) that can be directly written to and read by the
user. The contents of the WRi control the position of the
wiper. At power-up the device recalls the contents of the
DCP’s IVRi to the corresponding WRi.
The ISL22424 also has 13 General Purpose non-volatile
registers that can be used as storage of lookup table for
multiple wiper position or any other valuable information.
The ISL22424 features a dual supply, that is beneficial for
applications requiring a bipolar range for DCP terminals
between V- and VCC.
Each 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.
Features
• Two potentiometers in one package
• 256 resistor taps
• SPI serial interface with write/read capability
• Daisy Chain Configuration
• Shutdown mode
• Non-volatile EEPROM storage of wiper position
• 13 General Purpose non-volatile registers
• High reliability
- Endurance: 1,000,000 data changes per bit per register
- Register data retention: 50 years @ T
55°C
• Wiper resistance: 70
 typical @ 1mA
• Standby current <4µA max
• Shutdown current <4µA max
• Dual power supply
-VCC = 2.25V to 5.5V
- V- = -2.25V to -5.5V
•10k
 50kor 100k total resistance
• Extended industrial temperature range: -40ºC to +125ºC
• 14 Ld TSSOP or 16 Ld QFN
• Pb-free plus anneal product (RoHS compliant)
Data Sheet
September 9, 2015


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