Part Number: LMH6503 Tool/software: Hi,
We are trying to set up the circuit as seen in the image. However, the VGA is giving us a lot of issues. The main problem is that the output of the VGA is less than the input. We have tried using both constant…
Part Number: LMH6503 Tool/software: Hello,
We are working with an LMH6503. Our goal is to use the VGA for amplitude modulation of a sine wave, but since we have not been able to get it to work in conjunction with our circuit, we have isolated the VGA…
Part Number: LMH6503 Tool/software: Hello support team,
My customer would like to set IRG lower than 1.7mA. What problem will happen in this case?
Background: They observed oscillation when RG=130ohm, RF=130ohm, and VG=-1V with no signal input. Increasing…
Part Number: LMH6503 Hi,
Just a question about the LMH6503 and running it in a single supply configuration. On page 22, figure 65 there is a circuit shown for single supply operation. When I duplicate this into TINA TI I am not seeing any gain functioning…
Part Number: LMH6503 Other Parts Discussed in Thread: LMH730033 A question about using the LMH6503 VGA in a high impedance application.
In the app note AN-1808 LMH730033 Eval board, this is a circuit listed page two. It is meant as a 50ohm load to the…
Part Number: LMH6503 Other Parts Discussed in Thread: BUF634A Hi Team, Our customer finds most of the LMH6503 spec suitable for their application requirements, but they need to produce an output of ±5V (VS = ±5V) at 100Ω RL. The datasheet shows…
Part Number: LMH6503 Hi, i am a student and doing my first laborate design, its main application is a two channel signal generator. I use two LMH6503s to scale the amplitudes. Sadly the LMH6503s cut off the negative half-wave of mz sine signal, the amplification…
Part Number: VCA824 Other Parts Discussed in Thread: LMH6503 , , VCA821 , VCA822 , VCA820 Would it be correct to say that the VCA824 is a direct replacement (assuming SOIC 14 pkg) for the LMH6503 VGA? Seems like the VAC824 is just an improved design but just…
