caledonia
Newbie level 6
Hello,
could you please tell me if there are current mirrors in the market with a ratio more than 1:1?
The matched transistors that I found are identical (1:1) or are destined for very hight currents. I need to amplify a photocurrent.
I found the TL021 of TI, but they are not produced anymore![Frown :( :(](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
Of course there is also the alternative to realize it myself with transistors having a proportional surface, but the noise will be to high I think.
I would be very grateful if you know an anlternative already on the market.
Thank you!
could you please tell me if there are current mirrors in the market with a ratio more than 1:1?
The matched transistors that I found are identical (1:1) or are destined for very hight currents. I need to amplify a photocurrent.
I found the TL021 of TI, but they are not produced anymore
Of course there is also the alternative to realize it myself with transistors having a proportional surface, but the noise will be to high I think.
I would be very grateful if you know an anlternative already on the market.
Thank you!