Part Number: LOG114 Other Parts Discussed in Thread: OPA192 , LOG200 Hello engineers, I have a question here to ask you, the input circuit of the logarithmic amplifier after the precision inverter 1:1 conversion, is it possible to truncate the input current…
I looked through the datasheet once again and found PSRR graphs. Do I understand it correctly, that PSRR in our case is a propagation coefficient (frequency dependent) of the noise on the power input to the signal output? And given that it is looks even…
Part Number: LMH6551 Hello,
I am trying to design a highly sensitive transimpedance amplifier (TIA) system to amplify very low modulated current levels of a photodiode (order of ~10 nA peak-to-peak). This is my first time simulating/designing an analog…
Michael,
There are many different possibilities for this issue. Having more detail on how large the current load is, and the detailed schematic with the two amplifiers would help me to give a more precise answer. Here are a few possibilities.
It is possible…
Part Number: THS4541 Other Parts Discussed in Thread: ADS8881 , , THS4551 , THS2630 Hi TI expert ,
I am designing a MFB band pass filter for 18bit ADC( ADS8881), the center frequency of BPF is 1kHz, Q = 4, gain = 1, pass bandwidth = 250Hz, stop bandwidth…
Hi Sneha,
For the first circuit, there are two primary sources of error from the buffer stage and the FDA stage. To minimize the error from the buffer stage, I recommend implementing a FET input device that is more precise. One option would be something…
Camille,
The pocket reference is the engineering definition document and not a product catalog. We don't really have a product catalog anymore. The closest to a "catalog" would be to use the parametric search to find a device that matches your requirements…
TL5500RGPT-Precision Amplifiers Low Noise Pre-Amp
Can you please inform us when this series amplifier will come out for sale.
Or it is discontinued?
Do you Have an Alternate. Please suggest us for MRI application.
Mail Id solasubbu@khmdl.com
Hi Behnam,
One critical thing to note about the OPA838 is that the absolute maximum supply voltage rating is 5.5V and so setting the supply voltage of +/-3V is exceeding this range. Also, setting the supply voltage at +/-1V might not be turning the op…
Hi Electronx,
Yes, the input impedance of any fully-differential amplifier (FDA) is a direct function of the input resistors.
The simulation result shows the correct result, with 2kΩ input resistors, providing a 2kΩ input impedance. If you…