Unit 4

Topics

• Introduction to A/D & D/A convertors & their types →
• sample and hold circuits →
• Voltage to Frequency & Frequency to Voltage conversion. Multivibrators →
• Bistable →
• Monostable →
• Astable →
• Schmitt trigger →
• IC 555 & Its applications. TTL →
• PMOS →
• CMOS and NMOS logic. Interfacing between TTL to MOS. →