Floating Digital Channel ADC Switching Without Filter Recalibration
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Solution Overview
Problem
Conventional analog-to-digital converters face significant delays and increased power consumption when processing multiple analog inputs, as they require resetting and recalibrating digital filters, leading to inefficiencies in switching between different analog inputs.
Innovation Solution
The implementation of a floating digital channel configuration allows an analog channel to be shared across multiple digital channels, enabling efficient switching and processing of different analog inputs by applying distinct parameter sets to digital channel components, thereby reducing operational delays and power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional analog-to-digital converters reset and recalibrate digital filters when switching between multiple analog inputs, then measurement accuracy is maintained, but operational delays increase and power consumption increases
Solution Approach 1:
The patent applies preliminary action by pre-configuring multiple digital filter banks corresponding to different analog input types. When switching between inputs, the system simply activates the pre-configured filter bank matching the new input type without requiring reset or recalibration operations, thus eliminating the time delay while maintaining measurement accuracy
Solution Approach 2:
The patent implements dynamics by making the digital filter configuration dynamically selectable based on the active analog input type. The system transitions from static filter configuration to dynamic reconfiguration through simple activation of pre-prepared filter banks, allowing rapid switching while preserving measurement precision
2Measurement precision
If conventional analog-to-digital converters reset and recalibrate digital filters when switching between multiple analog inputs, then measurement accuracy is maintained, but power consumption increases
Solution Approach 1:
The patent reduces power consumption by performing filter configuration in advance during low-power states. Multiple digital filter banks are pre-configured with appropriate parameters for different analog input types, eliminating the need for energy-intensive reset and recalibration operations during active measurement modes
Solution Approach 2:
The patent changes the operational parameters of digital filters by selecting from pre-configured filter banks with different parameter sets optimized for various analog input types. This approach maintains measurement accuracy for different signal types while avoiding the energy consumption associated with dynamic parameter adjustment
3Reliability
If multiple separate digital channels are used for different analog inputs, then each input can be processed independently, but device complexity and cost increase
Solution Approach 1:
The patent applies universality by designing a single digital channel infrastructure that can serve multiple analog input types through the use of selectable digital filter banks. Each filter bank is configured for a specific input type, allowing the system to maintain independent processing capabilities for different inputs while sharing common digital processing resources
Solution Approach 2:
The patent segments the digital filtering function into separate, independently configurable filter banks that can be selectively activated. This segmentation allows each filter bank to be optimized for specific analog input types while sharing the same digital channel hardware, reducing overall device complexity compared to having completely separate digital channels
Data Source
AI summary
One or more systems and/or methods for implementing an analog-to-digital converter system with a floating digital channel configuration are provided. An analog input component is configured to receive measured analog signals, and output analog signals, corresponding to the measured analog signals, to an analog channel coupled to the analog input component. The analog channel is coupled to a switching component connected to a first digital channel and a second digital channel. The analog channel comprises a modulator configured to convert the analog signals into a data stream selectively input by the switching component to the first digital channel or the second digital channel.