Nonlinear inter-stage gain calibration for pipelined ADCs employing double dithering modes

Estimation of DACWeighting Capacitors Mismatch in Pipelined ADCs Employing Finite Gain Op-Amps

Background Calibration Techniques for Multistage Pipelined ADCs With Digital Redundancy

The proposed digital background calibration scheme, applicable to multistage (pipelined or algorithmic/cyclic) analog-to-digital converters (ADCs), corrects the linearity errors resulting from capacitor mismatches and finite opamp gain. A high-accuracy calibration is achieved by recalculating the digital output based on each stage’s equivalent radix. The equivalent radices are extracted in the ...

High Performance Frc Adcs with Gain Calibration

In this paper we introduce an offline digital calibration technique that allows the feed-forward residue compensation (FRC) architecture to provide a 70-Msps 15-bit converter with a final spurious-free dynamic range (SFDR) of over 100dB. We develop analytical expressions for the maximum accuracy that can result from this architecture. Simulations of the overall architecture including device mis...

A Digital Calibration Algorithm with Variable-amplitude Dithering for Domain-extended Pipeline Adcs

The pseudorandom noise dither (PN dither) technique is used to measure domain-extended pipeline analog-to-digital converter (ADC) gain errors and to calibrate them digitally, while the digital error correction technique is used to correct the comparator offsets through the use of redundancy bits. However, both these techniques suffer from three disadvantages: slow convergence speed, deduction o...

A distributed test system for pipelined ADCs

The paper presents a distributed test system for pipelined ADCs including a modelbased characterization process. A set of modular Virtual Instruments has been developed in Java to execute the system functions in order to be remotely manageable through a common Internet browser. The system features include (i) a module able in modeling an ADC through the specialization of a simplified behavioral...