Mixed mode multiply and accumulate unit

A system comprising:

• a processor configured to:
• generate an input signal;
• generate a clock signal;
• a first device configured to be in communication with the processor, the first device comprising:
• a first current mode digital-to-analog converter (DAC) configured to multiply the input signal with a first current having a first amplitude to generate a first signal;
• a second current mode DAC configured to multiply the input with a second current having a second amplitude to generate a second signal, wherein the second amplitude is less than the first amplitude;
• a mixer configured to multiply the second signal with the clock signal generated by the processor to generate a third signal;
• and
• wherein:
• the third signal is combined with the first signal via a current summing node to generate an output signal;
• and
• the output signal is outputted to a second device.

A method comprising:

• receiving, by a device, a digital signal;
• multiplying, by a first current mode DAC of the device, the digital signal with a first current having a first amplitude to generate a first signal;
• multiplying, by a second current mode DAC of the device, the digital signal with a second current having a second amplitude to generate a second signal, wherein the second amplitude is less than the first amplitude;
• multiplying, by the device, the second signal with a clock signal to generate a third signal;
• and
• adding, by the device, the third signal to the first signal to generate an output signal;
• and
• outputting, by the device, the output signal to another device.