An LDO-based supply referencing 10b 32MS/s pipelined ADC

An LDO-based supply referencing 10b 32MS/s pipelined ADC

A reference driver-free pipelined ADC with a low drop-out (LDO) regulator for power supply is proposed for SoC applications. An LDO-based regulated voltage provides not only power supply for digital and analog circuits but also works as a reference voltage for the ADC. Conventional residue function...

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Hauptverfasser: Chang-Kyo Lee, Ji-Wook Kwon, Sang-Hyun Cho, Seung-Tak Ryu
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Sprache:eng
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Capacitance measurement
Capacitors
Dynamic range
Noise
Prototypes
Simulation
System-on-a-chip
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creator Chang-Kyo Lee
Ji-Wook Kwon
Sang-Hyun Cho
Seung-Tak Ryu
description A reference driver-free pipelined ADC with a low drop-out (LDO) regulator for power supply is proposed for SoC applications. An LDO-based regulated voltage provides not only power supply for digital and analog circuits but also works as a reference voltage for the ADC. Conventional residue function from a 2.5b/stage design can use its max input as much as 93% of the internal supply voltage. A prototype 10-bit 32MS/s ADC has been designed for a 0.18μm CMOS technology. Under a regulated 1.5V internal supply from an external 1.8V, the design shows 65.1dB SFDR with 7.06mA (including LDO) current consumption.
doi_str_mv 10.1109/IMWS2.2011.6027169
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subjects Capacitance measurement
Capacitors
Dynamic range
Noise
Prototypes
Simulation
System-on-a-chip
title An LDO-based supply referencing 10b 32MS/s pipelined ADC
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