Design of OP-AMP using MOSFET of Sub-threshold Region

Title & Authors
Design of OP-AMP using MOSFET of Sub-threshold Region
Cho, Tae-Il; Yeo, Sung-Dae; Cho, Seung-Il; Kim, Seong-Kweon;

Abstract
In this paper, we suggest the design of OP-AMP using MOSFET in the operation of sub-threshold condition as a basic unit of an IoT. The sub-threshold operation of MOSFET is useful for an ultra low power consumption of sensor network system in the IoT, because it cause the supply voltage to be reduced. From the simulation result using 0.35 um CMOS process, the supply voltage, VDD can be reduced with 0.6 V, open-loop gain of 43 dB and the power consumption was evaluated with about $\small{1.3{\mu}W}$ and the active size for an integration was measured with $\small{64{\mu}m{\times}105{\mu}m}$. It is expected that the proposed circuit is applied to the low power sensor network for IoT.
Keywords
Sub-threshold;Low Power;OP-AMP;IoT;Sensor Network;
Language
Korean
Cited by
References
1.
S. Park, C. Hwang, and D. Park, "Internet of Things(IoT) ON system implementation with minimal Arduino based appliances standby power using a smartphone alarm in the environment," J. of the Korea Institute of Electronic Communication Sciences, vol. 10, no. 10, Oct. 2015, pp. 1175-1181.

2.
K. Lee, H. Lee, and Y. Kim, "Design and Implementation of a Systolic Architecture for Low Power Wireless Sensor Network," J. of the Korea Institute of Electronic Communication Sciences, vol. 10, no. 06, June 2015, pp. 749-755.

3.
D. Ryu, "Development of BLE Sensor Module based on Open Source for IoT Applications," J. of the Korea Institute of Electronic Communication Sciences, vol. 10, no. 3, Mar. 2015, pp. 419-424.

4.
H. Ju, and Y. Yoo, "Efficient Packet Transmission Utilizing Vertical Handover in IoT Environment," J. of the Korea Institute of Information Scientist and Engineers, vol. 42, no. 6, June 2015, pp. 807-816.

5.
G. Balachandran and P. Allen, "Switched-Current Circuits in Digital CMOS Technology With Low Charge-Injection Errors," IEEE J. of Solid-State Circuits, vol. 37, 2002, pp. 1271-1281.

6.
S. Yeo, "A study on low-power current mode signal process using sub-threshold MOSFET operation," Master's Thesis, Seoul National University of Science and Technology, 2013.

7.
S. Cho, S. Yeo, K. Lee, and S. Kim, "Current-Mode Circuit Design using Sub-threshold MOSFET," The J. of Korea Society of Communication and Space Technology, vol. 8, no. 3, Sept. 2013, pp. 10-14.

8.
L. Magnelli, F. A. Amoroso, F. Crupi, G. Cappuccino, and G. Iannaccone, "Design of a 76-nW, 0.5-V subthreshold complementary metal-oxide-semiconductor operation amplifier," Int. J. OF Circuit Theory and Applications, vol. 42, no. 9, Seprt. 2014, pp. 967-977.

9.
J. D. Irwin, and R. M. Nelms, "Engineering Circuit Analysis Ten edition," Hoboken, New Jersey, John Wiley & Sons, Inc., 2011.

10.
J. Kim, S. Yeo, D. Kim, G. Lee, and S. Kim, "Current-mode signal processing based OTA design for multimedia data transmission," 2014 Int. Conf. on Network Security and Communication Engineering, Hong Kong, Dec. 2014.