Tasks

In this lab you will design, build, and test a circuit that

• buffers the DAC network from the rest of the circuit and amplifies the DAC output by a factor of two,
• compares the amplified DAC output coming out of the buffer against a reference voltage to produce a binary voltage between zero or 9 volts,
• and clamps the output of the comparator to 0 or 5 volts.

A block diagram of the complete circuit that shows the interconnection of the ladder network, buffer, reference voltage source, comparator, and clamp will be found in figure 11. This figure outlines that portion of the block diagram that was constructed in previous labs as well as the new part you are to construct in this lab. Please note that the connection between the clamp circuit's output and the MicroStamp11 is left open. We don't want you to close this connection until you are certain that the clamp voltages lie within the proper range. You will close this connection in the next lab.

Figure 11: Block diagram of completed system