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12-Bit Low power successive-approximation ADC
The 12-Bit successive-approximation ADC is a general purpose Analog to Digital Converter (ADC) for low power applications. It is a charge redistribution successive-approximation type converter. Since the 12-Bit successive-approximation ADC contains only one comparator and no power hungry operational amplifiers, its power consumption is low. Furthermore, the ADC contains no circuits with static power consumption, making the power consumption of the ADC fully proportional to the sample-rate. This property makes the 12-Bit successive-approximation ADC ideally suitable for low duty-cycle sensor applications and other applications which benefit from a low power consumption. The single-ended signal input make the converter suitable for a broad range of applications.
特色
- Sample rate up to 10 MS/s
- Low power consumption
- 10 ENOBs
- 70 dB SFDR (incl THD)
- Power scales with sample-rate: 0.5mW @ 10MS/s, 5µW @ 100kS/s
- Single-ended signal input
- 0.02mm2 in 0.18µm CMOS
- Rail-to-rail input range
- Silicon proven concept
应用
- low-power applications
- sensor applications
- radio baseband processing
Block Diagram of the 12-Bit Low power successive-approximation ADC
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12-Bit Successive Approximation ADC
- This analog-to-digital converter (ADC) uses successive approximation register (SAR) architecture to achieve 12-bit resolution.
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