Low power filter design using a novel dual edge triggered latch

In the present investigation, a low power FIR filter using FDF structure is designed which is a key component in a hearing aid application. The details of design are presented. A novel low power latch using 10 transistors is pro-posed that uses dual edge triggering. It is shown a power saving up to 65% is achieved in the FIR filter using the proposed latch. This filter will find application in a hearing aid, which demands area/power constraint and would be useful for other DSP based portable devices.