Switched 4-to-1 Transimpedance Combining Amplifier for Receiver Front-End Circuit of Static Unitary Detector-Based LADAR System
Abstract
:1. Introduction
2. Architecture Description
2.1. OCP and Input Switch
2.2. 4-to-1 TCA, Post-Amplifier, Balun, and Output Buffer
3. Measurement Results
4. Conclusions
Acknowledgments
Author Contributions
Conflicts of Interest
References
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Stage | Gain | Bandwidth | Direct Current (DC) |
---|---|---|---|
Current buffers and first combining stages (R1) | 70 dBΩ (3 kΩ) | 330 MHz | 1.48 mA |
Second combining stage | 2 dB | 310 MHz | 0.65 mA |
Post-amplifier | 6 dB | 415 MHz | 2.06 mA |
Balun and output buffer | −10 dB | 353 MHz | 3.78 mA |
Parameter | Performance |
---|---|
Combining Channel | 4 |
CPD/cell (pF) | 1 |
Effective total CPD (pF) | 4 |
Transimpedance gain (dBΩ) | 67.5 |
Bandwidth (MHz) | 353 (simulated) |
Input-referred noise current density/cell (pA/√Hz) | 3.8 |
Power consumption (mW) | 17.8 |
Chip size (mm2) | 1.00 × 0.84 |
Technology | Complementary metal-oxide-semiconductor (CMOS) 0.18 μm |
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Lee, E.-G.; Lee, J.-E.; Jung, B.C.; Mheen, B.; Kim, C.-Y. Switched 4-to-1 Transimpedance Combining Amplifier for Receiver Front-End Circuit of Static Unitary Detector-Based LADAR System. Appl. Sci. 2017, 7, 689. https://doi.org/10.3390/app7070689
Lee E-G, Lee J-E, Jung BC, Mheen B, Kim C-Y. Switched 4-to-1 Transimpedance Combining Amplifier for Receiver Front-End Circuit of Static Unitary Detector-Based LADAR System. Applied Sciences. 2017; 7(7):689. https://doi.org/10.3390/app7070689
Chicago/Turabian StyleLee, Eun-Gyu, Jae-Eun Lee, Bang Chul Jung, Bongki Mheen, and Choul-Young Kim. 2017. "Switched 4-to-1 Transimpedance Combining Amplifier for Receiver Front-End Circuit of Static Unitary Detector-Based LADAR System" Applied Sciences 7, no. 7: 689. https://doi.org/10.3390/app7070689