A navel delta-sigma (Delta Sigma) analog-to-digital converter (ADC) using r
esonant tunneling diodes (RTDs) is proposed. A Delta Sigma modulator circui
t, which is the key element of the Delta Sigma ADC, can be designed in a ve
ry simple form using a monostable-bistable transition logic element (MOBILE
). The operation of this Delta Sigma modulator circuit is confirmed by nume
rical simulation.