Newnes Digital Logic IC Pocket Book

5

Using the 4007UB CMOS IC

If you are unfamiliar with modern CMOS, the best way to learn about it is by experimenting with the inexpensive 4007UB IC. The 4007UB houses little more than two pairs of complementary MOSFETs and one simple CMOS inverter stage; all of these elements are, however, independently accessible, and can be configured in a variety of ways. The 4007UB is thus a very versatile IC, and is ideal for demonstrating CMOS principles to students, technicians, and engineers. It can readily be configured to act as a multiple digital inverter, a NAND or NOR gate, a transmission gate, or a uniquely versatile ‘micropower’ linear amplifier or oscillator, etc. This chapter presents a selection of practical circuits of these types; it starts ...