← 返回 JSSC 论文列表JSSC 2009第9期Digital Circuits0.13μmNeural Network AcceleratorOp-Amp
A 055 V 60 dB-DR Fourth-Order Analog Baseband Filter Marcello De Matteis Stefano
提出一种0.55V供电、12MHz截止频率的四阶低通滤波器，采用改进偏置电路和单运放双二阶结构实现低压高性能。
0.13μm CMOS, 0.55V, 12MHz, 3.4mW, 8dBm IIP3
低压滤波器连续时间滤波器偏置电路数字调谐四阶滤波
▸改进偏置电路实现0.55V超低电压工作
▸单运放双二阶单元结构节省功耗
▸数字控制电容阵列实现截止频率可调
Abstract
A 0.55 V supply voltage fourth-order low-pass con-
tinuous-time filter is presented. The low-voltage operating point
is achieved by an improved bias circuit that uses different opamp
input and output common-mode voltages. The fourth-order filter
architecture is composed by two Active-
/71/109
/82/67biquadratic
cells, which use a single opamp per-cell with a unity-gain-band-
width comparable to the filter cut-off frequency. The
3 dB filter
frequency is 12 MHz and this is higher than any other low-vo