Part Number: INA821 Other Parts Discussed in Thread: INA121 Tool/software: Hi,
Our old product is using INA121. Now, I wish to use INA821 to replace it. but I found its offset voltage has one more output offset voltage and larger offset current and…
Part Number: INA121 Hello,
We are working in DC coupled Biopotential recordings. We are currently comparing two different electrode types that are exposed to the same environment at the same time, and should theoretically be giving the same recorded…
Hi Frank,
Can you send me the complete pressure sensor schematic of INA121? I am trying to solve your issue in "Just putting my arm close to the ina121 circuit, I am producing the oscillation." . I am trying to figure out the "oscillation" issues are…
Other Parts Discussed in Thread: INA121 , TINA-TI Hi, I'm trying to find a way to use an INA121 with only a single voltage supply. I've created a simple Tine-TI simulation of an INA121 with a +- 5V dual supply and everything simulates exactly as I would…
Part Number: INA121 Hello:
I have a +15V/-15V power supply. I have read several threads indicating that an OpAmp would only see the supply voltage as delta 30V across the Supply+ and Supply-. It would not be aware of a negative supply per se. However…
Part Number: INA121 Hello:
I am trying to run a PSpice simulation using the INA121. PSpice keeps reporting:
ERROR(ORNET-1017): Unconnected pin, no FLOAT property or FLOAT = e U1 pin '5'
I have it connected to a GRD, so I don't understand why I…
Part Number: INA121 Hello
Is it acceptable to use a trim pot as part of the Gain resistance of an INA used in a differential op amp application? Are there 1% tolerance trim pots available?
Thanks
Hi Mats,
the INA121 is not a super fast INA. At gain=10 the bandwidth is only 300kHz and the settling time is 20µs. So, the simulation is not in contradiction to the datasheet specifications:
Kai
