Week 12
Analog Signal-Chain Integration
I study differential stages, feedback, filters, and output stages as one connected signal path.
What I connect in this unit
An analog signal chain maps the sensor input range into every stage limit while controlling the total noise budget. Gain allocation should amplify early enough to overcome downstream noise without losing headroom, and output drive must satisfy load voltage and current.
Concept map
- Input range
- Noise budget
- Gain allocation
- Output drive
Technical anchor
Input-referred independent noise combines as en,total = √(en1² + (en2/G1)² + (en3/(G1G2))²), so early gain suppresses downstream contributions.
How I review it
For minimum and maximum sensor inputs, tabulate DC and peak voltage at each node, then check RMS noise, rail headroom, and final load current together.
Connection to the full course
Unit 12 of 12. Unit numbers follow concept dependencies rather than the historical lecture calendar.