KCC's Quizzes AQQ304 - A pure logic
1. Quote of the month: "I am not lazy, I'm just in energy-saving mode" - unknown
2. Quiz AQQ304 about finding a pure logic puzzle
Mike is looking at Anne, but Anne is looking at Paul.
Mike is married, but Paul is not.
Question:
Is a married
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August Monthly Blog Quiz! Read the blog, take the quiz, and you could win a gift card
Important: Read the blog first . The quiz questions are all based on the content of the blog:
Stay in the loop and win! Read the blog Current Output Driving Industrial Loops , then take our quick five-question quiz for a chance to win a gift card
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LTC6268
Recommended for New Designs
The LTC6268/LTC6269 is a single/dual 500MHz FET-input operational amplifier with extremely low input bias current and low input capacitance. It also features...
Datasheet
LTC6268 on Analog.com
Dear Sir,
Using LTC6268 as a transimpedance amplifier (photodiode mode), with V+ as the 5V power supply, V- as GND, the non-inverting input connected to a 1.25V reference source, and the inverting input connected to the positive terminal of the photodiode. Rf is 9.09MΩ. Currently, a sinusoidal waveform of around 300MHz with an amplitude of 100mVpp is measured at the output. Below is the schematic and oscilloscope waveform measurements.so could you help for analysing why this happened?


Can you provide a link to the photodiode data sheet?
Can you provide a photo of how the layout is realized?
Here is the datasheet for PD and a screenshot of the PCB layout for the devices in the schematic above (4-layer board TOP AVCC AGND BOTTOM).
Dear sir:
do you have some advice for this issue?
Best Regards!
Dear sir:
do you have some advice for this issue?
Best Regards!