Structure“化整为零”：划分偏置电路、输入级、中间级和输出级“分析功能”：分别分析各部分的结构形式及特点“统观整体”：研究各部分电路之间的联系定量估算”：必要时做定量分析Microelectronic Circuits
Microelectronic Circuits Structure ⚫ “化整为零”：划分偏置电路、输入级、中间级和 输出级 ⚫ “分析功能”：分别分析各部分的结构形式及特 点 ⚫ “统观整体” ：研究各部分电路之间的联系 ⚫ “定量估算”：必要时做定量分析
General Description24 transistors, few resistors and only onecapacitorTwo powersupplies Short-circuit protectionMicroelectronicCircuits
Microelectronic Circuits General Description ⚫ 24 transistors, few resistors and only one capacitor ⚫ Two power supplies ⚫ Short-circuit protection
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Microelectronic Circuits
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Microelectronic Circuits
The Input StageThe input stage consists of transistors Q1through Q7.Q1-Q4 is the differential version of CC and CBconfiguration.High input resistance. Current source (Q5-Q7) is the active load of inputstage. It not only provides a high-resistance loadbut also converts the signal from differential tosingle-ended form with no loss in gain orcommon-mode rejectionMicroelectronic Circuits
Microelectronic Circuits The Input Stage ⚫ The input stage consists of transistors Q1 through Q7. ⚫ Q1-Q4 is the differential version of CC and CB configuration. ⚫ High input resistance. ⚫ Current source (Q5-Q7) is the active load of input stage. It not only provides a high-resistance load but also converts the signal from differential to single-ended form with no loss in gain or common-mode rejection