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ISL22414 PDF预览

ISL22414

更新时间: 2024-02-03 10:23:36
品牌 Logo 应用领域
英特矽尔 - INTERSIL 电位器
页数 文件大小 规格书
16页 840K
描述
Single Digitally Controlled Potentiometer

ISL22414 数据手册

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ISL22414  
®
Single Digitally Controlled Potentiometer (XDCP™)  
Data Sheet  
December 16, 2010  
FN6424.1  
®
Low Noise, Low Power, SPI Bus, 256 Taps  
Features  
The ISL22414 integrates a single digitally controlled  
potentiometer (DCP), control logic and non-volatile memory  
on a monolithic CMOS integrated circuit.  
• 256 resistor taps  
• SPI serial interface with write/read capability  
• Daisy Chain Configuration  
• Shutdown mode  
The digitally controlled potentiometer is 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. The 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 control the position of the  
wiper. At power-up the device recalls the contents of the  
DCP’s IVR to the WR.  
• Non-volatile EEPROM storage of wiper position  
• 14 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: 70Ω typical @ 1mA  
• Standby current <2.5µA max  
The ISL22414 also has 14 General Purpose non-volatile  
registers that can be used as storage of lookup table for  
multiple wiper position or any other valuable information.  
• Shutdown current <2.5µA max  
• Dual power supply  
The ISL22414 features a dual supply that is beneficial for  
applications requiring a bipolar range for DCP terminals  
between V- and VCC.  
- VCC = 2.25V to 5.5V  
- V- = -2.25V to -5.5V  
The 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.  
• 10kΩ, 50kΩ or 100kΩ total resistance  
• Extended industrial temperature range: -40°C to +125°C  
• Military temperature range: -55 to +125°C  
• 10 Lead MSOP  
Pinout  
ISL22414  
(10 LD MSOP)  
TOP VIEW  
• Pb-free (RoHS compliant)  
O
10  
9
SCK  
SDO  
SDI  
CS  
Vcc  
1
2
3
4
5
RH  
RW  
8
7
RL  
V-  
GND  
6
Ordering Information  
PART NUMBER  
(NOTES 1, 2)  
PART  
RESISTANCE OPTION  
TEMP. RANGE  
(°C)  
PACKAGE  
(Pb-Free)  
PKG.  
DWG. #  
MARKING  
414TZ  
414UZ  
(kΩ)  
ISL22414TFU10Z  
ISL22414UFU10Z  
ISL22414WFU10Z  
ISL22414WMU10Z  
NOTES:  
100  
50  
-40 to +125  
-40 to +125  
-40 to +125  
-55 to +125  
10 Ld MSOP  
M10.118  
10 Ld MSOP  
10 Ld MSOP  
10 Ld MSOP  
M10.118  
M10.118  
M10.118  
414WZ  
414WM  
10  
10  
1. 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.  
2. Add “-T*” suffix for tape and reel. Please refer to TB347 for details on reel specifications.  
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.  
1
Copyright Intersil Americas Inc. 2007, 2010. All Rights Reserved  
1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) and XDCPis a trademark owned by Intersil Corporation or one of its subsidiaries.  
All other trademarks mentioned are the property of their respective owners.  

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