A delay line which uses an analog technique of delaying the signal. Currently, all available analog delays use a circuit known as a "bucket brigade". This circuit uses an analog sampling technique: a capacitor captures the instantaneous voltage value of the signal being delayed. Then, on a clock signal, the voltage is passed to the next capacitor in the chain, and the first one captures a new voltage. Delay time available depends on the number of capacitor "buckets" in the chain. The delay time is varied by varying the clock rate, which effects the bandwidth available.