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Download 生醫電子電路設計 姓名:蔡聖瑋 老師:梁治國
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生醫電子電路設計 姓名:蔡聖瑋 老師:梁治國 OP AMPLIFIERS 1、MULTIPLIERS/DIVIDERS 2、SINGLE SUPPLY AMPLIFIERS MULTIPLIERS/DIVIDERS 乘法器 A basic integrated multiplier schematic representation MULTIPLIERS/DIVIDERS One quadrant multiplier If a particular multiplier circuit is designed to accept only polarity of input voltage on each of its inputs ,then its operation will be limited to a single quadrant 。 Two quadrant multiplier Of a given multiplier circuit requires a single polarity on one input but accepts both polarities on the other 。 Four quadrant multiplier If a multiplier is designed to accept either polarity on both of its inputs MULTIPLIERS/DIVIDERS Input signal A Input signal B output signal MULTIPLIERS/DIVIDERS The multiplier circuit can also be configured to perform several other mathematical operations ,including division,squaring, square root functions 除法器 平方運算 開平方根 SINGLE SUPPLY AMPLIFIERS The standard 741 op amp can be operated from a single polarity power source SINGLE SUPPLY AMPLIFIERS SINGLE SUPPLY AMPLIFIERS 交流耦合放大器 An AC-coupled amplifier using the MC34071 op amp. SINGLE SUPPLY AMPLIFIERS 1. The output voltage can typically swing to within 1.0 volt of the +Vcc and to within 0.3 volt of the –Vcc level (ground in the case of single-supply operation). 2. The supply voltage can range between 3 and 44 volte . 3. Unity gain frequency is about 4.5 megahertz 4. Slew rates are as high as 13 volts per microsecond. 5.Full output voltage swings at frequencies over 100 kilohertz. SINGLE SUPPLY AMPLIFIERS 諾頓放大器電路圖 The simplified input circuitry for Norton operational amplifier SINGLE SUPPLY AMPLIFIERS 1. The output voltage can typically swing to within 1.0 volt or less of +Vcc and ground. 2. The supply voltage can range between 5 and 18 volts. 3. Unity gain frequency is about 4 megahertz. 4. Slew rates are 0.5 volts per microsecond on the positive slope and 20 volts per microsecond on the negative slope. 5 Full output voltage swing up to about 8 kilohertz. SINGLE SUPPLY AMPLIFIERS Thank you of your attention