A forward body bias generator for digital CMOS circuits with supply voltage scaling

Author

Meijer, Maurice ; De Gyvez, José Pineda ; Kup, Ben ; Van Uden, Bert ; Bastiaansen, Peter ; Lammers, Marco ; Vertregt, Maarten

Author_Institution

NXP Semicond., Eindhoven, Netherlands

fYear

2010

fDate

May 30 2010-June 2 2010

Firstpage

2482

Lastpage

2485

Abstract

We propose a new fully-integrated forward body bias (FBB) generator that holds its voltage constant relative to the (scalable) power supply of a digital IP. The generator is modular and can drive distinct digital IP block sizes in multiples of up to 1mm². The design has been implemented in 90nm low-power CMOS. Our basic unit for driving digital IP blocks up to 1mm² occupies a silicon area of 0.03mm² only. The generator completes a 500mV FBB voltage step within 4μs. The bandwidth of the design is 570kHz. The active current of the FBB generator alone is about 177μA for a nominal process, 1.2V supply and 85°C. The standby current is as low as 72nA at 27°C.

Keywords

CMOS digital integrated circuits; driver circuits; low-power electronics; bandwidth 570 kHz; current 72 nA; digital CMOS circuits; digital IP; forward body bias generator; low power CMOS; power supply; size 90 mm; supply voltage scaling; temperature 27 C; temperature 85 C; voltage 1.2 V; CMOS digital integrated circuits; Circuit optimization; Control systems; Delay; Digital control; Electrical equipment industry; Energy consumption; Industrial control; Power generation; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems (ISCAS), Proceedings of 2010 IEEE International Symposium on

Conference_Location

Paris

Print_ISBN

978-1-4244-5308-5

Electronic_ISBN

978-1-4244-5309-2

Type

conf

DOI

10.1109/ISCAS.2010.5537129

Filename

5537129