A low-power class-AB BiCMOS opamp using 'pseudo-pnp' transistors
Bibliographic record
Abstract
A low-power Class AB BiCMOS operational amplifier is discussed. Low power is achieved through Class-AB architecture, as well as through a structure called pseudo-PNP. The pseudo-PNP structure, along with an appropriate level-shifting arrangement, has the advantages of high transconductance per unit of bias current and zero input bias current as compared to either a PMOS or a lateral-PNP transistor. The application, advantages and tradeoffs of this structure as input devices and current-mirrors, are explained. A Class-AB operational amplifier using pseudo-PNP is proposed. For 0.8-/spl mu/m BiCMOS technology, this shows a gain of 73.8 dB, a unity gain bandwidth of 49 MHz, and a settling time of 98 ns for a 2.5 V step at a quiescent power of 12 mW.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
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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) | 0.000 | 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".