Tool/software: TINA-TI or Spice Models
Hello,
I need to make an pre amplifier circuit for receiving sound echos from atmosphere which is in range of 0.1 micro volts to 10 micro volts. Current…
Hi friends
i am a newbie here
i want to make low cost Weighing Scale for measure less than 100kg
can you help to find…
Hello Tim, please have a look at the updated schematics. The pins (8 and 9) are attached to power supply which has two outputs. I have connected the +15 Volts to INA103's pin9 and -15 Volts are supplied through swapping the other output's (+\-) lines…
Dear all, if would be of great help if someone here can help us to get out INA103KP running properly. Since weeks we can't understand what is wrong.
We're using INA 103 KP as instrumentation amplifier as driver for thermocouple…
Hi
I m working on an aplicaiton which measure low amplitute differential signals ( 500 nV-10 uV) from a low impedance source.
Could anyone tell me if the imput voltage offset of the amplifier (1 uv in the best case…
Im hoping to use 3 INA826 to measure a differential voltages over each capacitor of a total of 3 in series. I made a model of the application in TI spice and have attached it. In Tiny TI spice, the voltage on the…
I have designed a 3 Op Amps instrumentation amplifier with a variable gain (potentiometer) from 1V/V to 10,000 V/V . It seems to work fine in the simulations (TINA TI) with Op amps that are dual supply, but the problem…
Hello All,
i would like to know the potential difference between two isolated power supply ground,
We use isolated 24V to power the sensors and isolated 12V to interface the sensor
and signal conditioning. At the front end , i would like build the differential…
I am working with ina114. I used two individual 9V batteries (unregulated) as power sources and Rg = 10Kohm. hence the gain should be 6. But when the differential voltage is 198mV, the output is -8.45V. However,…
Hey TI community,
How does one validate a SPICE model from a manufacturer or third party? My simulations of the AD620 and other instrumentation amplifiers in TINA and LT SPICE have resulted in gains suspiciously…
In part 5 of this blog series, I discussed the construction of an input-isolated 2-wire sensor transmitter. Input-isolated 2-wire transmitters require isolating the sensor power and data signals from the 2-wire loop supply and 2-wire loop return (RTN…
Part 4 of this series discussed the issues and requirements involved in the design of a 2-wire sensor transmitter that accepts inputs from an externally powered sensor/source. In this installment, I’ll expand on the concepts presented in that post and…
The previous three parts of this blog series focused on 2-wire 4-20mA sensor transmitter designs composed completely of analog components. While analog signal conditioning is practical for linear sensors, many sensors have nonlinear outputs that can only…
Part 2 of this blog series derived the basic transfer function for a typical 2-wire transmitter, commonly used in industrial control and automation, and explained the currents flowing inside it. It also explained that connecting the transmitter return…
Part 1 of this blog series provided an overview of the operation and uses of 2-wire 4-20 mA field sensor transmitters and provided a basic example system. The post also introduced the current transmitter compliance voltage, which when violated prevents…
There is an open ended warning in the datasheet for the INA333-HT:
"It is not recommended to use a gain < 100 for high temperature (210°C) applications. For gains > 100 in such applications, a compensation circuit…
Good Day. I would like to verify the dimensions and recommended footprint for the INA333SJD instrumentation amplifier. The datasheet gives the following:
Orderable Device / Package Type / Package Drawing / Pins
INA333SJD / CDIP SB / JD
…The datasheet of the DVGA LMH6517 has the following statement in page number 15, last paragraph below figure No 41.
"In the presence of a strong blocker, with the DVGA gain set at 12 dB and blocker level kept…
Tim Green
Here is the moment you have all been waiting for – the answers to the six op amp puzzles I posted last week. You know, the ones that you have all been puzzling and puzzling until your puzzler is sore! Score your number of right answers…
