Part Number: TIPD176 Hello TI community,
I am using TIPD176 reference board with SFH213 photo diode, and flashing black and white light frame (from mobile screen) to view the output of the TIA in the oscilloscope. Unfortunately I am getting very low…
Hi Pankaj,
TIPD176 - 1 MHz, Single-Supply, Photodiode Amplifier Reference Design in the "Design References" section of the document provides a derivation of the equation.
Thank you,
Tim Claycomb
Dear Mr. Pete Semig,
Greetings for a Great New Year. Two help I need from you,
1. SFH 7050 has a peak wavelength of 940 NM, Can you help us to understand if we can detect Glucose using this IC.
2. AFE4490 has a built in Transimpedence amplifier…
Hi Jordan,
Please take a look at TIPD176 (1MHz, Single-Supply, Photodiode Amplifier Reference Design). This document should discuss most design consideration for a photodiode application.
I also recommend taking a look at our TI Precision Lab training…
Hi Marco,
I didn't read through the entire article, but after giving it a quick skim it looks correct. The zero in the 1/beta (noise-gain) response is a result of the parallel combination of the feedback and input resistors interacting with the diode…
Take a look at the reference design in the link below. It covers the most common photodiode measurement configuration. Let us know if this helps, or if you need additional guidance.
Art
http://www.ti.com/tool/tipd176
Hi Viny,
Design Step 3 shows the equation to calculate the minimum bandwidth for the amplifier used as a TIA. Also TIPD176 shows a more in depth derivation of the equation.
The circuit bandwidth will be dependent on your system and is set by R3 and…
Hi Luis,
Thank you for checking out my circuit.
What is the photodiode junction capacitance and required reverse voltage and/or do you have a photosensor part number?
The photodiode is Osram SFH 213 . Its capacitance is 11pF. The photodiode…
Hi Mo,
When transimedance amplifiers oscillate it is because the circuit's phase margin has been reduced to the point where it is zero degrees, and the applied feedback becomes positive. The phase margin reduction comes about because of phase shift…
Hi Saif,
Looks like we missed your post from last week Friday:
Since it was the same post, I deleted the older one.
The XTR106 is meant for resistive sensors that are commonly placed in resistive bridge configurations. Examples are pressure sensors…
