參數(shù)資料
型號(hào): ISL22444TFR20Z
廠商: Intersil
文件頁數(shù): 8/19頁
文件大小: 0K
描述: IC POT DGTL 256TP LN LP 20-QFN
產(chǎn)品培訓(xùn)模塊: Solutions for Industrial Control Applications
標(biāo)準(zhǔn)包裝: 600
系列: XDCP™
接片: 256
電阻(歐姆): 100k
電路數(shù): 4
溫度系數(shù): 標(biāo)準(zhǔn)值 ±45 ppm/°C
存儲(chǔ)器類型: 非易失
接口: 4 線 SPI(芯片選擇)
電源電壓: 2.25 V ~ 5.5 V
工作溫度: -40°C ~ 125°C
安裝類型: 表面貼裝
封裝/外殼: 20-VQFN 裸露焊盤
供應(yīng)商設(shè)備封裝: 20-QFN 裸露焊盤(5x5)
包裝: 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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