low-noise preamplifier

基本解釋

During testing process, Low-noise preamplifier is adopted to lower the background noise for the testing system.
採(cǎi)用低噪聲前置放大器使整個(gè)系統(tǒng)的背景噪聲充分降低；
The amplifier consists of a low-noise preamplifier stage, a current-mode instrumentation amplifier stage, a buffer stage, and a constant-g_m bias stage.
電路適用於卡膚電極系統(tǒng)，包括低噪聲前置放大級(jí)、由電流模儀表放大器搆成的主放大級(jí)、輸出緩沖級(jí)和恒跨導(dǎo)偏置級(jí)。
For every circuit unit, mainly analyzing and designing the low-noise preamplifier, rule control amplifier and linearity precision detector unit circuit and so on.
各單元電路設(shè)計(jì)時(shí)，從整個(gè)測(cè)量系統(tǒng)誤差的角度分析設(shè)計(jì)低噪音前置放大器、程控放大器、線性精密檢波器等單元電路。