PATT(PreAmp Tommy Tyler)

Design Review

By Tyler Trent and Tommy Lam

Introduction:Belle II

Introduction: KLM Electronics

Pre-Amp schematic

● Differential Amplifier● Common Base Amplifier

Project Goals● Characterize the current version of the pre-amp

● Simulate the pre-amp

○ Recreate the characteristics observed from

experiment

○ Modify and simulate changes to the pre-amp

● Make modified pre-amp and test

Testing Setup

Testing Setup

Testing Setup

Dynamic Range of the Pre-Amp

Dynamic Range of the Pre-Amp

Gain

Simulated pre-amp in SPICE

Simulated characteristics from pre-amp (R=100Ohms), Gain ~ 2

Issues and Challenges

● Gain of the pre-amp

● Litmus test for simulation

● Initial stage section

● Time

Revised Schedules ● Nov. 30th: Analyze different stages of preamp in SPICE, study

common-base amplifiers

● Dec. 1st: Vary components of preamp in SPICE and observe gain.

● Dec. 5: Finish construction and test the modified pre-amp.

● Dec. 6: Prepare for presentation

● Dec. 7: Presentation Day

Expected Deliverables● Realistic

○ Reasonably accurate SPICE simulation of the pre-amp

○ Initial prototypes on possible modifications of the pre-amp

● Optimistically

○ Reasonably accurate SPICE simulation of the pre-amp

○ A modified pre-amp with significantly improved dynamical range

Extra Slides

No connection between bases

R = 0