Name
Title | ||
|---|---|---|
Design of a robust general-purpose low-offset comparator based on IGZO thin-film transistors |
Abstract | ||
|---|---|---|
This paper presents a low-offset comparator based on n-type amorphous indium gallium zinc oxide thin-film transistors (TFTs). An a-Si:H TFT model was adapted to fit the electrical characterization data obtained for these devices. The proposed comparator comprises three pre-amplification stages, a positive-feedback analog latch and a fully dynamic digital latch. Simulation results show that the proposed circuit can work at several tens of kHz, with an accuracy of the order of 10 mV, considering a supply voltage of 10 V and a current consumption of 380 μA. Monte-Carlo simulations exhibit a 1-sigma random offset voltage smaller than 10 mV and 40 mV, respectively, with and without using autozeroing techniques. |
Year | DOI | Venue |
|---|---|---|
2015 | 10.1109/ISCAS.2015.7168620 | 2015 IEEE International Symposium on Circuits and Systems (ISCAS) |
Keywords | Field | DocType |
Comparator,Low offset,Monte-Carlo,a-IGZO TFTs,Modeling | Logic gate,Thin-film transistor,Comparator,Input offset voltage,Computer science,Voltage,Electronic engineering,Indium gallium zinc oxide,Transistor,Electrical engineering,Amorphous solid | Conference |
ISSN | Citations | PageRank |
0271-4302 | 1 | 0.41 |
References | Authors | |
2 | 5 | |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Ana Correia | 1 | 1 | 1.76 |
| Rodrigo Martins | 2 | 4 | 3.72 |
| Fortunato, E. | 3 | 6 | 5.70 |
| Pedro Barquinha | 4 | 2 | 5.24 |
| João Goes | 5 | 88 | 27.95 |