Hi
i am trying to amplify the output from wheat stone bridge and facing exactly the same problem . the amplified output is just few volts less than the supply to INA2126,can you please suggest solution to this problem
By the way- I did solve this problem. The problem was that the two op amps (INA2126) used to interface the thermocouple had their input biases tied together. Since the leak off current required is extremely low I just added a 1M resistor in series with…
Jerry,
There are a couple things I should point out. First, the input signal to the INA2126 is being applied as a common-mode voltage (same polarity at each input), instrumentation amplifiers are designed specifically to reject common-mode voltages and…
Other Parts Discussed in Thread: OPA2132 , INA2126 , OPA2604 , INA2128 5355.EMG AMPLIFIER CIRCUIT DIAGRAM FOR ONE CHANNEL.doc
Hi,
I made a design of surface EMG and that circuit as attached. In this circuit i used INA2126 for behalf of INA 2126 and…
Hello Tejaswi,
First, to learn more about designing ECG systems with precision amplifier products please utilize the repository of information present on this forum and search through the numerous posts on ECG designs using other amplifiers and perhaps…
Brandon,
The INA2126 requires a minimum common signal level referenced to the negative supply to operate correctly. It is optimal to configure this common signal level with respect to Vs/2. So if you are running the INA2126 off a +5V single supply, you…
Hi,
Thanks for the response. I spoke to the original designer and he has convinced me this is not an issue for our design.
The TL064 is part of a Class 2E low-pass filter circuit. There is negative feedback, and at DC it is basically an inverting amplifier…
