ABX® Automotive Adaptive Body Biasing Generator - GLOBALFOUNDRIES 22FDX

Overview

RI_ABB_GF22FDX_AM is an adaptive body bias voltage generator for automotive applications in Globalfoundries 22FDX® technology. It contains a closed loop body bias regulation loop to generate N-well and P-well bias voltages for compensation of process, voltage and temperature (PVT) variations during operation. This results in up to 76% leakage power improvement for automotive grade-1 applications up to 150°C junction temperature.

Key Features

Integrated adaptive body bias (ABB) control loop
Charge pumps for N-Well and P-Well voltages, operated from IO supply voltage level
Integrated PVT monitors for true independent adaption of NMOS and PMOS performance
Operation from typically 10MHz, up to 50MHz reference clock
Available for forward (FBB) and reverse body bias (RBB)
Available with multiple charge pump drive strengths supporting a wide range of active chip areas
Delivered as hardmacro for easy and seamless integration
ISO26262 Safety Element out of Context (SEooC) with ASIL D capability
Interoperable with foundation IP standard cells and SRAM
Compliant to automotive grade-1 and grade-2

Benefits

fref = <10MHz to 50MHz>
Pactive < 200µW (typical)
area < 0.0066mm² (smallest pump strength)
-0.2V < VNW < 2.4V
-2.4V < VPW < 0.2V
Automotive grade-1 and grade-2 compliant
ISO26262 SEooC with ASIL D capability

Block Diagram

Applications

Automotive
Low Power
IoT
High Speed Computing

Deliverables

Verilog simulation models
.lib/.db timing and power models
.lef layout abstract views
NDM and Milkyway libraries
GDSII layout
LVS netlist
EMIR models
DFT models

Technical Specifications

Foundry, Node

GLOBALFOUNDRIES 22FDX

Maturity

silicon-proven

Availability

now

GLOBALFOUNDRIES

Pre-Silicon: 22nm FDX
Silicon Proven: 22nm FDX

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