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Single supply +5 V operating circuit of logarithmic and loga

2015-03-21 09:30  
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Single supply +5 V operating circuit of logarithmic and logarithmic ratio amplifier LOG101/104
Many applications only have a single power supply, while LOG101/104 needs dual power. The circuit shown in figure uses a negative pump power TPS6040DBV which can switch a single +5 V power supply to a -5V supply for LOG101/104.