This chapter will discuss the task of mediation between analog and digital equipment. Especially will learn modifier A / D and D / A.Sering time digital system must diantarmukakan with analog equipment. Special coding called analog to digital converter, which means an analog input into digital information and digital inputs to the opposite analog.Tugas converter D / A is to transform the digital input into analog outputs. (Figure 13.2) illustrates the function of converting D / A. In summing amplifier in a converter D / A in particular we use the IC operational amplifier type is often called an op amp (operational amplifier)
Summing amplifier in the converter D / A using the op amp is a versatile amplifier and has the following important characteristics:
High input Impendantasi
Impendantasi low output
Amplifier voltage change - change that prices are set by external resistors
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