cosmos

8 bit addition program of the 8051. 1)8-bit addition program simply use the 8 bit memory location to store  element that need to be add. We can use both the internal as well as the external memory location for the addition. In the following program we use the external memory location to fetch the data and add them. program: ORG 0000H;                    starting memory location MOV B,#00H;                  load the 00h in the resistor b MOV DPTR,#2000H ;      load the memory pointer in the DPTR MOVX A,@DPTR ;           move  content of  memory location 2000h in the acc MOV R2,A;                       store the content of the accumulator...

Slew Rate of Op Amp  The slew rate define as maximum rate of change of the output voltage with time,    slew rate  s = d v 0 / dt v 0 = output voltage of the Op Amp The slew rate is cause due to the limited  charging rate of the compensation capacitor and the current limiting and the saturation of the internal stage of an Op-Amp , when high frequency large signal is applied . The internal capacitor voltage cannot change instantaneously. it is given by  d v c/dt = I/C For the larger charging rate charging current must be large or the capacitance of the capacitor must be small. Hence the slew rate for an Op-Amp  is given as ,                                            S= I max /C  for example : For the IC 741 charging current is 15 micro Ampere internal capacitance is 30 micro Far...