JSSC 2006第1期Digital Circuits0.25μm CMOS

A VLSI Analog ComputerDigital Computer Accelerator

0.25微米CMOS工艺的VLSI模拟计算机，加速ODE求解速度超10倍。

1cm²/50mm², 300mW, 10³加速比

VLSI模拟计算机微分方程求解混合计算加速低功耗设计CMOS工艺

▸单芯片集成80个积分器和336个其他模拟功能块

▸模拟计算机与数字计算机协同求解微分方程

▸能耗仅为通用微处理器的0.02%-1%

Abstract

The design of a single-chip VLSI analog computer fabricated in a 0.25- m CMOS process is described. It contains 80 integrators, 336 other linear and nonlinear analog functional blocks, switches for their interconnection, and circuitry to en- able the system’s programing and control. The IC is controlled, programmed and measured by a PC via a data acquisition card. This arrangement has been used to simulate ordinary differential equations (ODEs), partial differential equations, and stochastic di