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ISL22426WFR16Z Arkusz danych(PDF) 1 Page - Intersil Corporation |
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ISL22426WFR16Z Arkusz danych(HTML) 1 Page - Intersil Corporation |
1 / 15 page 1 ® FN6180.2 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 Inc. Copyright Intersil Americas Inc. 2006, 2008, 2009. All Rights Reserved All other trademarks mentioned are the property of their respective owners. ISL22426 Dual Digitally Controlled Potentiometer (XDCP™) Low Noise, Low Power, SPI™ Bus, 128 Taps The ISL22426 integrates two 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 SPI serial 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 DCP’s IVR to the corresponding WR. 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. Features • Two potentiometers in one package • 128 resistor taps • SPI serial interface • Non-volatile storage of wiper position • Wiper resistance: 70 Ω typical @ VCC = 3.3V • Shutdown mode • Shutdown current 5µA max • Power supply: 2.7V to 5.5V •50k Ω or 10kΩ total resistance • High reliability - Endurance: 1,000,000 data changes per bit per register - Register data retention: 50 years @ T < +55°C • 14 Ld TSSOP and 16 Ld QFN package • Pb-free (RoHS compliant) Pinouts ISL22426 (14 LD TSSOP) TOP VIEW ISL22426 (16 LD QFN) TOP VIEW Ordering Information PART NUMBER (Note) PART MARKING RESISTANCE OPTION (k Ω) TEMP. RANGE (°C) PACKAGE (Pb-free) PKG. DWG. # ISL22426UFV14Z* 22426 UFVZ 50 -40 to +125 14 Ld TSSOP M14.173 ISL22426UFR16Z* 224 26UFZ 50 -40 to +125 16 Ld 4x4 QFN L16.4x4A ISL22426WFV14Z* 22426 WFVZ 10 -40 to +125 14 Ld TSSOP M14.173 ISL22426WFR16Z* 224 26WFZ 10 -40 to +125 16 Ld 4x4 QFN L16.4x4A *Add “-TK” suffix for tape and reel. 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. NC 1 2 3 4 5 6 7 SDO SCK 8 9 10 14 13 12 11 SHDN RW0 RL0 RH0 SDI VCC RW1 RL1 RH1 CS GND NC NC RW1 RH1 RL0 RL1 RH0 RW0 1 3 4 15 16 14 13 2 12 10 9 11 6 57 8 Data Sheet September 8, 2009 |
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