0.36 V PGA combining single‐stage OTA and input negative transconductor for low energy RF receivers. Issue 5 (1st March 2018)

• Record Type: Journal Article
• Authors: Severo, L.; Van Noije, W.
• Is Part Of: Electronics letters. Volume 54:Issue 5(2018)
• Page Start: 319
• Page End: 320
• Publication Date: 2018-03-01
• Subjects: programmable circuits -- low‐power electronics -- operational amplifiers -- CMOS digital integrated circuits; single‐stage OTA -- input negative transconductor -- low‐energy RF receivers -- ultralow‐voltage programmable gain amplifier -- ultralow‐power PGA -- closed‐loop single‐stage operational transconductance amplifier -- CMOS process -- two‐stacked transistors -- PMOS bulk forward bias -- PVT variations -- power dissipation -- voltage 0.36 V -- size 180 nm -- gain 0.2 dB to 18.4 dB -- power 15.4 muW -- bandwidth 0.98 MHz; Electronics -- Periodicals; 621.381
• DOI: 10.1049/el.2017.4464
• Languages: English
• ISSNs: 0013-5194

Abstract

Abstract : An ultra‐low voltage and ultra‐low power programmable gain amplifier (PGA) using a closed‐loop single‐stage operational transconductance amplifier (OTA) and an input negative transconductor is proposed. The circuits are implemented in a 180 nm CMOS process using two stacked transistors and PMOS bulk forward bias to operate well down to 0.36 V, to be robust to PVT variations and to reach the bandwidth of low energy RF receivers. The PGA measured results at 0.36 V show a programmable voltage gain from 0.2 to 18.4 dB, 15.4 μW power dissipation, 0.98 MHz bandwidth and 0.0243 mm 2 area.