A delay interpolator includes pull-up devices coupled between a supply rail and a node, pull-down devices coupled between the node and a ground, and a first control circuit coupled to the pull-up devices, wherein the first control circuit is configured to receive a first signal, a second signal, and a first delay code, input the first signal to a programmable number of the pull-up devices based on the first delay code, and input the second signal to remaining ones of the pull-up devices. The delay interpolator also includes a second control circuit coupled to the pull-down devices, wherein the second control circuit is configured to receive the first signal, the second signal, and a second delay code, input the first signal to a programmable number of the pull-down devices based on the second delay code, and input the second signal to remaining ones of the pull-down devices.