參數(shù)資料
型號(hào): CAT5119SDI-50-T3
廠商: ON Semiconductor
文件頁(yè)數(shù): 8/11頁(yè)
文件大小: 0K
描述: IC DPP MINIPOT 32TAP U/D SC70-6
標(biāo)準(zhǔn)包裝: 3,000
系列: MiniPot™
接片: 32
電阻(歐姆): 50k
電路數(shù): 1
溫度系數(shù): 標(biāo)準(zhǔn)值 200 ppm/°C
存儲(chǔ)器類(lèi)型: 易失
接口: 2 線(xiàn)串行(芯片選擇,增/減)
電源電壓: 2.7 V ~ 5.5 V
工作溫度: -40°C ~ 85°C
安裝類(lèi)型: *
封裝/外殼: *
供應(yīng)商設(shè)備封裝: *
包裝: *
CAT5110, CAT5118, CAT5119, CAT5123, CAT5124, CAT5125
http://onsemi.com
6
APPLICATIONS INFORMATION
The devices are intended for circuits requiring digitally
controlled adjustable resistance, such as LCD contrast
control, where voltage biasing adjusts the display contrast.
Alternative Positive LCD Bias Control
An op amp can be used to provide buffering and gain on
the output of the CAT5110/CAT5125. This can be done by
connecting the wiper output to the positive input of a
noninverting op amp as shown in Figure 9. Figure 10 shows
a similar circuit for the CAT5119/CAT5124.
Adjustable Gain
Figures 11 and 12 show how to use either a variable
resistor or a potentiometer to digitally adjust the gain of a
noninverting op amp configuration, by connecting the
devices in series with a resistor to ground. The devices have
a low 5 ppm/C ratiometric tempco that allows for a very
stable adjustable gain configuration over temperature.
30 V
W
L
H
+5 V
CAT5110/CAT5125
30 V
L
H
+5 V
CAT5119/CAT5124
L
H
L
H
W
CAT5110/CAT5125
CAT5118/CAT5123
Figure 9. Positive LCD Bias Control
Figure 10. Positive LCD Bias Control
Figure 11. Adjustable Gain Circuit
Figure 12. Adjustable Gain Circuit
VOUT
VIN
VCC
VOUT
VIN
VCC
VOUT
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