Answers are grounded in this paper and cite their sources.
This paper presents a precision current sensor featuring a high voltage, high gain (~ 140 dB), and low input offset ( < 1 mV) current sense amplifier. This amplifier does not require offset trimming even for low offset applications. It is a single stage amplifier that has a common gate pMOS differential input pair, which makes it inherently stable. This amplifier topology allows for a wide input common-mode range, thus increasing the versatility of current sensing circuit.
No takes yet. Share an insight, caveat, or question.
Dake et al. (2008) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: