Open Access0.36 V PGA combining single‐stage OTA and input negative transconductor for low energy RF receivers
Author(s) -
Severo L.,
Van Noije W.
Publication year - 2018
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
ISSN - 1350-911X
DOI - 10.1049/el.2017.4464
Subject(s) - transconductance , pmos logic , operational transconductance amplifier , transistor , cmos , low voltage , electrical engineering , amplifier , voltage , dissipation , bandwidth (computing) , materials science , rf power amplifier , low power electronics , radio frequency , electronic engineering , operational amplifier , power (physics) , engineering , physics , telecommunications , power consumption , quantum mechanics , thermodynamics
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.