Marvell Asia Pte., Ltd.

Pera Florin

Fazil Ahmad

Quanli Lu

Liang Fan

Cindra Abidin

Espen Olsen

A time-interleaved current-based digital-to-analog converter (current DAC) cell includes first input circuitry configured to receive a digital input signal, a first biasing voltage, a first clock, and a second clock. The first clock and the second clock having a phase offset from one another and having a common period. The current DAC also includes a first gate configured to, responsive to an 'ON' state of the first clock, pass the digital input signal to a second gate, the second gate being configured to, responsive to an ‘OFF’ state of the second clock, output a first DAC cell activation signal. The current DAC further includes first output circuitry configured to, responsive to the first DAC cell activation signal, output a first analog current signal based on (i) the digital input signal and (ii) the first biasing voltage.

Time-interleaved current-based digital-to-analog converter (current DAC)

A method for dynamically calibrating a time-interleaved digital-to-analog converter (DAC) includes receiving a digital input signal, generating, from the digital input signal, an output analog signal using DAC circuitry, generating, from the digital input signal, a model analog signal using DAC modeling circuitry, adjusting a digital model based on the model analog signal and the digital input signal, determining at least one of an offset error and a gain error based on comparing the output analog signal to the model analog signal, and generating an error correction signal based on the at least one of an offset error and a gain error.

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Dunrobin, Canada

Pera Florin