Maxim Integrated Products, Inc.

Yuanfang Li

David Castaneda

Daniel David Alexander

Patrick Yin Chan

Jean CauXuan Le

Ling Liu

Huibo Liu

A system includes a sub-binary radix digital-to-analog converter (DAC) that converts a digital input signal to an analog output signal based on a sub-radix DAC code. A radix conversion module performs radix conversion on the digital input signal. To perform the radix conversion, the radix conversion module associates bit positions corresponding to the digital input signal with respective analog weights and converts the digital input signal to the sub-radix DAC code based on the respective analog weights.

Precision sub-RADIX2 DAC with analog weight based calibration

An N bit sub-binary radix digital-to analog converter (DAC) includes a radix conversion module that converts an m bit digital input signal to an N bit sub-radix DAC code. A ladder module having NL bits has a plurality of first circuit elements corresponding to first respective bits of the N bit sub-radix DAC code. A segment module having NS bits has at least one second circuit element corresponding to second respective bits of the N bit sub-radix DAC code. N&#x3e;m, and N is the sum of NL and NS.

[object Object]

A system includes an NL bit digital to analog converter (DAC) ladder module having NL ladder resistors connected in parallel, NL series resistors connected in series between the NL ladder resistors, and a plurality of switches. NL is an integer greater than one. Adjacent pairs of the plurality of switches are connected in series with respective ones of the ladder resistors. On resistances of each of the plurality of switches are approximately equal. A switch control module provides a plurality of switch control signals to respective ones of the plurality of switches.

DAC with novel switch regulation

A driver circuit uses a feedback loop having a programmable timer and timer logic to adjust a slew rate delay period used to accommodate slewing current when charging or discharging a load capacitor, and to increase the current limit during the slew rate delay period by selecting a larger input current reference value. Increasing the current limit provides for a faster settling time. The value of each input current reference value can be programmed. The programmable timer and the timer logic can be configured to coordinate the slew rate delay period and the selected input current reference value. The slew rate delay period can be adjusted based on which input current reference value is applied.

Timer controlled, short and open circuit fault detection with slew-rate boosted output driver

A system includes an N bit sub-binary radix digital-to-analog converter (DAC) that converts an m bit digital input signal to an analog output signal, where m and N are integers greater than or equal to 1 and N&#x3e;m. A radix conversion module determines a code ratio, the code ratio being a ratio of a total number of available monotonic codes to 2, and performs radix conversion on the m bit digital input signal based on the code ratio.

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Irvine, CA, United States of America

Yuanfang Li