Transcript OP AMPLIFIERS

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