Amplifiers perform precision divide by 2 circuit: 03/06/03  EDN-Design Ideas / The classic implementation of a voltage-halving circuit uses tw1o equal-value resistors. Using 1% resistors provides a divider output with 2% accuracy. For most applications, this performance is cost-effective and more than adequate. However, when you need extreme precision, this approach requires correspondingly accurate resistors and can become expensive...

Divide By 1 1/2 Circuit:

Frequency Doubler operates on Triangle Waves: 12/05/96 EDN-Design Ideas

Unusual Frequency Dividers: