参数资料
型号: ISL22444UFR20Z
厂商: Intersil
文件页数: 8/19页
文件大小: 0K
描述: IC POT DGTL 256TP LN LP 20-QFN
产品培训模块: Solutions for Industrial Control Applications
标准包装: 600
系列: XDCP™
接片: 256
电阻(欧姆): 50k
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-VQFN 裸露焊盘
供应商设备封装: 20-QFN 裸露焊盘(5x5)
包装: 管件
16
FN6426.0
May 24, 2007
Application Example
Figure 22 shows an example of using ISL22444 for gain
setting and offset correction in a high side current
measurement application. DCP0 applies a programmable
offset voltage of ±25mV to the FB+ pin of the Instrumentation
Amplifier ISL28272 to adjust output offset to zero voltages.
DCP1 programs the gain of the ISL28272 from 90 to 110
with 5V output for 10A current through current sense
resistor. DCP2 and DCP3 are used for another channel of
dual ISL28272 correspondently (not shown in Figure 22).
More application examples can be found at
http://www.intersil.com/data/an/AN1145.pdf
CS
SCK
SDI
SDO
RD DCP1
RD DCP0
NOP
DCP2 OUT
DCP1 OUT
DCP0 OUT
RD DCP2
16 CLKS
FIGURE 21. DAISY CHAIN READ SEQUENCE OF N = 3 DCP
ISL22444
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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
ISL22444WFR20Z 功能描述:数字电位计 IC 275 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
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