A 0.19-V minimum input low energy level shifter for extremely low-voltage VLSIs

Author

Matsuzuka, Ryo ; Hirose, Tetsuya ; Shizuku, Yuzuru ; Kuroki, Nobutaka ; Numa, Masahiro

Author_Institution

Dept. of Electr. & Electron. Eng., Kobe Univ., Kobe, Japan

fYear

2015

fDate

24-27 May 2015

Firstpage

2948

Lastpage

2951

Abstract

In this paper, we propose a low-power level shifter (LS) capable of converting extremely low-input voltage into high-output voltage. The proposed LS consists of a pre-amplifier with a logic error correction circuit and an output latch stage. The pre-amplifier generates complementary amplified signals, and the latch stage converts them into full-swing output signals. Simulated results demonstrated that the proposed LS in a 0.18-μm CMOS process can convert a 0.19-V input into 1.8-V output correctly. The energy and the delay time of the proposed LS were 0.24 pJ and 21.4 ns when the low supply voltage, high supply voltage, and the input pulse frequency, were 0.4, 1.8 V, and 100 kHz, respectively.

Keywords

CMOS integrated circuits; VLSI; error correction; flip-flops; logic circuits; low-power electronics; preamplifiers; CMOS process; extremely low-voltage VLSI; frequency 100 kHz; high-output voltage; latch stage; logic error correction circuit; low energy level shifter; low-input voltage; low-power level shifter; pre-amplifier; pulse frequency; size 0.18 mum; voltage 0.19 V; voltage 0.4 V; voltage 1.8 V; Delays; Digital audio players; Error correction; Latches; MOSFET; Very large scale integration;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems (ISCAS), 2015 IEEE International Symposium on

Conference_Location

Lisbon

Type

conf

DOI

10.1109/ISCAS.2015.7169305

Filename

7169305