AMPS                                                                                      APPLICATION FILE PAGE

 

FILE

TYPE

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OPERATION

 

Analogue interfaces often need signal conditioning to bring the input into the right range, reduce noise and so on.

 

A set of standard amplifier configurations is shown with manual test inputs. The MCU and LCD display the output of each via a multi-pole switch.

 

The simulator allows the voltages to be monitored accurately at any point, and limitations in the amplifier performance observed. For example, the effect of input offset and CMMR.

 

Ideal output voltage should be:

 

Non-inverting

    Vn = V2 * (R3/R4+1)

 

Inverting

    Vt = V3 * (-R6/R5)

 

Summing

    Vs = 2 * (V4 + V5)

 

Difference

    Vd = 2 * (V8 – V6)

 

Unity Gain Buffer

    Vu = V7

AMPS.DSN

Proteus VSM Design File

ISIS Schematic Capture

AMPS.ASM

Program Source Code

Source code editor in ISIS

AMPS.LST

Program List File

Assembler MPASM in Proteus VSM

AMPS.HEX

Program Machine Code

Assembler MPASM in Proteus VSM