生醫電子電路設計 姓名：蔡聖瑋 老師：梁治國. op amplifiers 1 、...

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

A basic integrated multiplier schematic representation

乘法器

MULTIPLIERS/DIVIDERS

One quadrant multiplierIf 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 multiplierOf a given multiplier circuit requires a single polarity on one input but accepts both polarities on the other 。

Four quadrant multiplierIf 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

An AC-coupled amplifier using the MC34071 op amp.

交流耦合放大器

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

The simplified input circuitry for Norton operational amplifier

諾頓放大器電路圖

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