Part Number: OPA838 Tool/software:
I have basic questions about the following configuration of an Op-Amp, which is transimpedance amplifier , I would appreciate your help to help me understand this:
First question, considering that the…
Part Number: OPA838 Tool/software: Hi, I would like to know which is the best solution to reduce noise, interference, non linearity, better SNR to improve signal of the ultrasonic sensor. I should use one of this part number of the SECO Sensor: SC042…
Part Number: OPA838 Other Parts Discussed in Thread: OPA835 , OPA695 , BUF802 Tool/software: Hello all, I've been trying to simulate an analog frontend to sensor when I discovered this weird behavior of the OPA838 model (I switch to Tina since i could…
Part Number: OPA838 Other Parts Discussed in Thread: OPA836 , EVM430-FR6043 , TIDM-02003 , Hello Expert,
We changed from OPA836 to OPA838 according on EVM430-FR6043 to what is specified in the TIDM-02003 reference design.
When we changed OPA838…
Part Number: OPA838 Other Parts Discussed in Thread: LMH6642 Hi Sir,
My customer want to replacei AD8051 by using OPA838. They test OPA838 but find crosstalk at input side. Is that normal at OPA838? Or is there any other OP can replace AD8051 without…
Part Number: OPA838 Tool/software:
Dear Engineers,
I need to design a ultra low noise amplifier in transimpedance architecture. This is one my architecture I have chosen:
In addition to the decoupling capacitors on the supply pin I have also added…
Part Number: OPA838 Other Parts Discussed in Thread: OPA855
As all the datasheet has mentioned, we need to remove GND and PWR plane underneath the negative inverting pin and the output pin of the operational amplifier (It is important to avoid ground…
Part Number: OPA838 Other Parts Discussed in Thread: OPA847 , OPA2626 , OPA625 , OPA350 , OPA626 , OPA837 , OPA810 Tool/software: Hello
When I perform simulation of OPA838
The result is stable
But when I add a feedback capacitor, the circuit…
Part Number: OPA838
Tool/software:
Dear Engineers,
I have designed a transimpedance amplifier as follows:
Based on the simulation, I should get around 58 dB for SNR @3MHz:
But what I achieved in my experimental results is as follows…
Part Number: OPA838 Dear all,
I designed a transimpedance amplifier as follows, there is an ultrasound traducer that produce current and its internal capacitance is 1nF (there is also 1.2k in the mode of the transducer), which is connected to the…
