Hi,
My customers are considering ADA 4817-1.
So I got a question.It is about operation in the Power Down state.
#1 Is the input pin High-Z (high impedance)?
#2 Does the current leak from the input pin?
Best regards
Yuya
5.5 V is the Abs Max Supply Voltage for LTC6268. This doesn't mean that you have to power the part at 5.5V. The Abs Max Ratings specifies parameters where the part is expected to operate before potential permanent damage. So to answer your concern…
可以考虑一下 ADA4817-1， 带宽1,05GHz
http://www.analog.com/en/products/amplifiers/operational-amplifiers/jfet-input-amplifiers/ada4817-1.html#product-overview
My customers are considering using ADA 4817-1.
So I got a question.
Does the input impedance vary with frequency?
If it changes, how will it change?
Best regards,
I use ADA4817-1 to convert differential voltage to single end. The common voltage is +0.3V ~ +0.7V, and the differential voltage is about 5mV to 2000mV. The source impedance is about 5k ~10k Ohm. Signal frequency from DC to100MHz.
The simple circuit…
Do you mean Ada4817-1? Yes, it is possible. Look at http://welecw2000a.sourceforge.net/docs/Hardware/Aktiver_Tastkopf_mit_OPA659.pdf
ada4817 can replace opa659 there.
Another useful link is http://www.mikrocontroller.net/topic/188227
I use ada4817-1 and adg1414bcpz to convert current to voltage.
But the amplifier self-oscillate at frequency about 80MHz.
How can i cancel the unexpected frequency?
In attchment, ADA4817-1 convert current in DUT to voltage. ADG1414BCPZ used to…
可以使用AD8067 ADA4817-1
Dear Gauzz
TanQ for ur reply
before your answer, I did some simulations by spice models of two AD8067 in series and a composite of a AD8067 and a AD8009 and found improvements by composite configuration against two series amps.
now I have an another question…
Basically you may build a simple oscillator with a high frequency & high slew-rate Op-AMP like a ADA4817-1
http://www.analog.com/static/imported-files/data_sheets/ADA4817-1_4817-2.pdf
http://hyperphysics.phy-astr.gsu.edu/hbase/electronic/square…