in the inbox from Analog Devices, a new unity gain stable, nanovolt noise, voltage feedback opamp from ADI
http://www.analog.com/UploadedFiles/Data_Sheets/885134117ADA4899_1_0.pdf
http://www.analog.com/UploadedFiles/Data_Sheets/885134117ADA4899_1_0.pdf
Nice, but low PSU voltage...
The same with the OPA847, and not unity gain stable, but 0.85nV/Hz input voltage noise.
http://focus.ti.com/docs/prod/folders/print/opa847.html
The same with the OPA847, and not unity gain stable, but 0.85nV/Hz input voltage noise.
http://focus.ti.com/docs/prod/folders/print/opa847.html
jcx said:1/f corner? - many new op amps are really bad >1 KHz, even 10 KHz
en and in 1/f about 1kHz, see datasheet fig 13 and 16 on page 8. 10nv/rthz en at 10Hz, not bad but AD797 is about 5X better here.
peranders said:... and this will result in noise levels like...? This is nothing to worry about. Noise is important above 1 kHz or so.
LF noise (from milliHz to a few tens of Hz) is very important for industrial T&M applications.
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