A CMOS MAGFET-Based Programmable Isolation Amplifier
Bibliographic record
Abstract
In this paper, we present a high common mode voltage amplifier with a novel isolation technique. In this proposed structure, a minimum of 430 V isolation is satisfied from on-chip intermetal SiO <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> layers. On the high-voltage side, an adjustable gain amplifier that supports ±2.5 V of differential voltage drives the coil. However, on the low-voltage side, a CMOS integrated magnetic field sensitive MOSFET (MAGFET) placed under the coil converts the generated magnetic field into a current imbalance which will be transformed to a differential voltage via a cascode stage. In addition, based on the ADC input dynamic range, the signal amplitude is adjusted by using a 6-bit dB-linear programmable gain amplifier (PGA) with a gain range of 0 to 54 dB and a maximum gain-nonlinearity error of 0.2 dB. This PGA has a temperature independent characteristic with a maximum gain error of 0.21 dB over a temperature variation between -40 to 80 °C. The design achieves a low input offset of 0.18 mV. It has also a low current consumption of 1.2 and 2.3 mA for the high voltage and the low voltage side, respectively.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".