参数资料
| 型号： | ISL22444TFV20Z |
| 厂商： | Intersil |
| 文件页数： | 1/19页 |
| 文件大小： | 0K |
| 描述： | IC POT DGTL 256TP LN LP 20-TSSOP |
| 产品培训模块： | Solutions for Industrial Control Applications |
| 标准包装： | 740 |
| 系列： | XDCP™ |
| 接片： | 256 |
| 电阻（欧姆）： | 100k |
| 电路数： | 4 |
| 温度系数： | 标准值 ±45 ppm/°C |
| 存储器类型： | 非易失 |
| 接口： | 4 线 SPI（芯片选择） |
| 电源电压： | 2.25 V ~ 5.5 V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 20-TSSOP |
| 包装： | 管件 |
1
FN6426.0
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. 2007. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
ISL22444
Quad Digitally Controlled Potentiometer (XDCP)
Low Noise, Low Power, SPI Bus, 256 Taps
The ISL22444 integrates four 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
wipers position 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 ISL22444 also has 11 General Purpose non-volatile
registers that can be used as storage of lookup table for
multiple wiper position or any other valuable information.
The ISL22444 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
Four 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
11 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
Ω typical @ 1mA
Standby current <4A max
Shutdown current <4A max
Dual power supply
-VCC = 2.25V to 5.5V
- V- = -2.25V to -5.5V
10k
Ω, 50kΩ or 100kΩ total resistance
Extended industrial temperature range: -40 to +125°C
20 Ld TSSOP or 20 Ld QFN
Pb-free plus anneal product (RoHS compliant)
Ordering Information
PART NUMBER
(Notes 1, 2)
PART MARKING
RESISTANCE
OPTION (k
Ω)
TEMPERATURE
RANGE (°C)
PACKAGE
(Pb-free)
PKG. DWG. #
ISL22444TFV20Z
22444 TFVZ
100
-40 to +125
20 Ld TSSOP
M20.173
ISL22444TFR20Z
22444 TFRZ
100
-40 to +125
20 Ld QFN
L20.5x5
ISL22444UFV20Z
22444 UFVZ
50
-40 to +125
20 Ld TSSOP
M20.173
ISL22444UFR20Z
22444 UFRZ
50
-40 to +125
20 Ld QFN
L20.5x5
ISL22444WFV20Z
22444 WFVZ
10
-40 to +125
20 Ld TSSOP
M20.173
ISL22444WFR20Z
22444 WFRZ
10
-40 to +125
20 Ld QFN
L20.5x5
NOTES:
1. Intersil Pb-free plus anneal products employ special Pb-free material sets; molding compounds/die attach materials and 100% matte tin plate
termination finish, which are 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 “-TK” suffix for 1,000 Tape and Reel option
Data Sheet
May 24, 2007
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ISL22444TFV20Z-TK | 功能描述:数字电位计 IC 270 TAP FL RNG IND QD SPI DCP 20LD RoHS:否 制造商:Maxim Integrated 电阻:200 Ohms 温度系数:35 PPM / C 容差:25 % POT 数量:Dual 每 POT 分接头:256 弧刷存储器:Volatile 缓冲刷: 数字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作电源电压:1.7 V to 5.5 V 电源电流:27 uA 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:TQFN-16 封装:Reel |
| ISL22444UFR20Z | 功能描述:数字电位计 IC 274 TAP FL RNG IND QD SPI DCP 5X5 RoHS:否 制造商:Maxim Integrated 电阻:200 Ohms 温度系数:35 PPM / C 容差:25 % POT 数量:Dual 每 POT 分接头:256 弧刷存储器:Volatile 缓冲刷: 数字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作电源电压:1.7 V to 5.5 V 电源电流:27 uA 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:TQFN-16 封装:Reel |
| ISL22444UFR20Z-TK | 功能描述:数字电位计 IC 277 TAP FL RNG IND QD SPI DCP 5X5 RoHS:否 制造商:Maxim Integrated 电阻:200 Ohms 温度系数:35 PPM / C 容差:25 % POT 数量:Dual 每 POT 分接头:256 弧刷存储器:Volatile 缓冲刷: 数字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作电源电压:1.7 V to 5.5 V 电源电流:27 uA 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:TQFN-16 封装:Reel |
| ISL22444UFV20Z | 功能描述:数字电位计 IC 268 TAP FL RNG IND QD SPI DCP 20LD RoHS:否 制造商:Maxim Integrated 电阻:200 Ohms 温度系数:35 PPM / C 容差:25 % POT 数量:Dual 每 POT 分接头:256 弧刷存储器:Volatile 缓冲刷: 数字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作电源电压:1.7 V to 5.5 V 电源电流:27 uA 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:TQFN-16 封装:Reel |
| ISL22444UFV20Z-TK | 功能描述:数字电位计 IC 271 TAP FL RNG IND QD SPI DCP 20LD RoHS:否 制造商:Maxim Integrated 电阻:200 Ohms 温度系数:35 PPM / C 容差:25 % POT 数量:Dual 每 POT 分接头:256 弧刷存储器:Volatile 缓冲刷: 数字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作电源电压:1.7 V to 5.5 V 电源电流:27 uA 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:TQFN-16 封装:Reel |
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