摘要:
A system includes an analog-to-digital modulator to convert at least one analog input signal into at least one digital output signal. The system also includes a processing device to set an operational order and a quantization level of the analog-to-digital modulator. The analog-to-digital modulator converts the analog input signal into the digital output signal according to the operational order and the quantization level.
摘要:
A programmable processing device having a control system and a programmable reference block. The control system sends digital control signals to the programmable reference block, which in turn generates analog variable signals used as reference signals for the programming of the one or more reconfigurable data converters.
摘要:
A programmable system includes a programmable analog device including an operational amplifier to generate an output voltage based on input voltages at terminals of the operational amplifier. The programmable system also includes a system controller to direct the programmable analog device to reconfigure analog circuitry providing the input voltages to the operational amplifier. The reconfiguration of the analog circuitry allows the programmable analog device to implement discrete-time or continuous-time functions.
摘要:
Buffer circuit embodiments are described. A buffer circuit includes an input configured to receive an input signal and a buffer configured to generate an output signal based on the input signal. In one embodiment, the buffer circuit includes a programmable chopping module coupled with the buffer, wherein the programmable chopping module is programmable with a selected configuration from a plurality of configurations, and wherein the programmable chopping modulates the input signal based on the selected configuration. In another embodiment, the buffer circuit further includes a programmable output filter coupled with the buffer, wherein the programmable output filter is programmable with a selected configuration form a plurality of configurations, and wherein the programmable output filter filters a frequency band of the output signal based on the selected configuration.
摘要:
A programmable device includes an operational amplifier and circuitry. The operational amplifier is configured to generate an output voltage based on input voltages at input terminals thereof. The circuitry is configured to provide the input voltages to the operational amplifier. The configuration of the circuitry allows the programmable device to implement discrete-time or continuous-time functions. The circuitry includes a resistor network and a capacitor network configured to be selectively coupled to the operational amplifier.
摘要:
A buffer circuit includes an input configured to receive an input signal; and a buffer configured to generate an output signal based on the input signal. In an embodiment, the output signal has a linear relationship with the input signal when the input signal is within the input voltage range; and the buffer circuit further includes a level-shifting circuit coupled with the input, wherein the level shifting circuit determines an input voltage range, and wherein one of an upper limit and a lower limit of the input voltage range is within 50 millivolts from a supply rail voltage. In another embodiment, the buffer circuit further includes a programmable chopping module coupled with the buffer, wherein the programmable chopping module is programmable with a selected configuration from a plurality of configurations, and wherein the programmable chopping modulates the input signal based on the selected configuration. In yet another embodiment, the buffer circuit further includes a programmable output filter coupled with the buffer, wherein the programmable output filter is programmable with a selected configuration from a plurality of configurations, and wherein the programmable output filter filters a frequency band of the output signal based on the selected configuration.
摘要:
A system includes an analog-to-digital modulator to convert at least one analog input signal into at least one digital output signal. The system also includes a processing device to set an operational order and a quantization level of the analog-to-digital modulator. The analog-to-digital modulator converts the analog input signal into the digital output signal according to the operational order and the quantization level.
摘要:
A system and apparatus are described for providing greater flexibility and performance in a mixed-signal array through improved and highly configurable routing, control elements and signal processing capabilities.
摘要:
A system comprises a temperature sensor generate multiple base-emitter voltage signals by sequentially providing various currents to a transistor, and a system controller to determine a differential voltage signal according to the multiple base-emitter voltage signals, the differential voltage signal proportional to an environmental temperature associated with the transistor.
摘要:
The present invention relates to a band-gap reference circuit. The circuit comprises a plurality of diodes connected in series in one or more chains, a current source to flow current through the diode chains, and a selection of shunt current sources. The shunt current sources are connected in parallel with the main current sources and each, or any, can be selected in order to add current to the diode chain. In this manner, current flow through the diode chain is adjusted in order to provide a trimmable band-gap reference voltage. By adjusting the current flow, the high precision reference voltage circuit can provide a very accurate reference value for variations in process state, process error and temperature.