Part Number: VCA2617 Tool/software: Hi,
I looking for VCA2617, dual channel VGA amplifier, differential input and differential output. Datasheet gives a slew rate value of 100V/us.
Let´s suppose I have a 0.743Vp 20MHz sine wave in OUT+ pin and the same…
Hi,
Sorry for the delay.
The 1.2-dB gain error between the two channels seems high but it can be possible. Typical gain matching spec (for most devices) as per the datasheet is within +/-0.8-dB.
Can you switch out the device in that location with a…
Part Number: VCA2617 We are using a variable gain amplifier from TI (Model No: VCA2617RHBT ) and observing high settling time.
We had made the following observations.
With 440 uF decoupling capacitors gave a settling time of ~15 minutes.
With 220 uF…
Part Number: VCA2617 Other Parts Discussed in Thread: VCA5807 Hi all,
I would like to use the VCA2617 for a new design. I'll use it as a postamplifier to the VCA5807. In the data sheet there are two PINs (PIN 3 and PIN 6) labelled VDDR and GNDR related…
Amy: thank you for sending me an updated VCA2617 test bench by email. This has fixed the problem of amplifier outputs going negative with a positive-only supply. However, it still does not address our main concern, which is to establish the power-up time…
Other Parts Discussed in Thread: VCA2617 I'm looking at using VCA2617 in a new design, I see its an active part but given the age of the device I'm worried about its longevity. Anyone got any comments??
Part Number: TLV5619 Other Parts Discussed in Thread: VCA2617 , DAC8831 Hello,
Is the TINA TI Spice model available for this DAC?
We wanted to use this DAC(TLV5619) along with the VGA(VCA2617) in our design. The SPICE model is available for the latter…
Hello,
I agree LMH6401 would be overkill for your frequency range. Additional f ully differential PGA/VGAs to look at for your gain range:
1. VCA2617: −10dB to 38dB, or −16dB to 32dB; dual channel fully differential VGA, 50MHz, + 5.25 (+/-2…
Hi Pierre,
How are you?
Yes, you are right.
You can add the differential filter between VCA2617 VCA's outputs and your next device's inputs.
Then you can improve the VCA2617's SNR performance for your application.
Thank you!
Happy New Year…
