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Surround Circuit

2017-08-08 01:54  
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This article describes the surround effect circuit. Schematics can combine text look better grasp of this principle. This principle is better grasp. After reading the circuit diagram, we first briefly explain an important component of the circuit: μA741. The  μA741  is a general-purpose operational amplifier featuring offset-voltage null capability. The high common-mode input voltage range and the absence of latch-up make the amplifier ideal for voltage-follower applications. The device is short-circuit protected and the internal frequency compensation ensures stability without external components. A low value potentiometer may be connected between the offset null inputs to null out the offset voltage as shown in Figure 2.The μA741C is characterized for operation from 0 ° C to 70 ° C. The μA741I is characterized for operation from -40 ° C to 85 ° C.The μA741M is characterized for operation over the full military temperature range of -55 ° C to 125 ° C.μA741 have what characteristics:
  Short-Circuit Protection
  Offset-Voltage Null Capability
  Large Common-Mode and Differential Voltage Ranges
  No Frequency Compensation Required
  Low Power Consumption
  No Latch-Up
  Designed to Be Interchangeable With Fairchild μA741

 

 

Surround Effect

 


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