Well just responding tothe AGC part,
the dB/V gain control versions are what you want if you are building your own AGC - the VCA820 describes this but is likely too fast for what you need. You might also look at the VCA810 for a slower design point
There…
Part Number: LM331 Other Parts Discussed in Thread: VCA810 Dear all,
my need is to generate an harmonic signal (sine wave) with a frequency tuned between 0 and 1 kHz and the amplitude controlled between 0 and 1 Vrms. As analogic inputs to control frequency…
Hi Harini,
TL026C, VCA810 are some parts I found that you could use to make a AGC circuit with and they would be fast enough for a nano second pulse.
The TL026C datasheet contains an example circuit you could look at.
Thanks!
-Karan
Hello Madhu,
TI doesn't offer any ampifier products that will directly accomplish your high voltage, voltage-controlled amplifier (VCA) function. There are a few low-voltage VCA products such as VCA810 and VCA820, but these are intended for use with…
Hello Floris,
It sounds from your description that a linear voltage-controlled amplifier (VCA) may be an appropriate solution. The one device that comes to mind is the VCA810. You can find more information about it here:
http://www.ti.com/product/VCA8…
AMY AIM SORRY THE UNIT IS THE THS7530 THIS UNIT IS THE ONE I THINK WOULD BE BEST TO USE I SENT A DRAWING USING THE VCA 810 JUST TO KEEP IT SIMPLE AS I EXPLAIN WHAT AIM TRYING TO DO .
BUT THE END UNIT WILL BE THE THS7530 BECAUSE IT HAS A POS. AND NEG.…
I think I have solve the problem. I am using a bread board, and therefore I am using an adapter for the VCA810 surface mount chip. On the adapter I was applying flux before soldering and that seemed to cause the problem.
Other Parts Discussed in Thread: THS3001 , THS3091 , VCA824 , THS7001 , VCA821 , VCA820 , VCA810 , VCA822 , OPA695 Hi
I would like to design a variable gain amplifier using a current feedback amplifier lie the THS3001. Is it possible to change the value of the…