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Hi,
We are using a OPA 4170 opamp at the output of a DAC for amplifying and level shifting the DAC output. However, it is found that the 4170 fails frequently. The ouptut pins of the 4170 have been brought out on to headers for probing. These are not…
Hi Dixit,
I do find it unusual that when you apply 0 V to the top of the voltage divider connected to OPA4170, pin 12, and you measure +2.4 V at the divider center point . I would expect that point to measure 0 V there as well.
Overall, the circuit has…
Other Parts Discussed in Thread: OPA4170 Hi,
The part OPA4170 looks attractive interms of price and performance.
But, my application demands rail to rail input and output swing. In the datasheet of OPA4170, it is mentioned that the input swing will be…
Part Number: DAC8760 Other Parts Discussed in Thread: OPA4170 , While using the OPA4170, we have to use the DAC8760. While doing so, what is the significance of the VSENSE pin both + and -?
Also, Why is a 5k ohm resistor used between VOUT and +VSENSE is…
Part Number: TIDA-00289 Other Parts Discussed in Thread: DRV110 , DRV5023 , OPA4170 , , TLV271 The TIDA-00289 design uses a 24-V DC solenoid, can the design be easily modified for 12-V DC solenoids? I checked the datasheets for the major components (DRV110…
Hello,
While we do not list these parameters for this device and package in this datasheet, these package parameters will be very similar or equivalent across difference devices with the same package type. For example, I would advise to take a look at…
This is from the OPA4170 folks: OPA4170-Q1: Input current in simulation
In essence, the input impedance doesn't matter under certain conditions because there are diodes that become forward biased for a short duration.
I used the rise/fall times specified…
Sandeep, Welcome to the e2e forums.
The OPA4170 is not rail to rail input. The model will have poor results as a warning when the input range is close to the end. The OPA4170 can run on 3.3V, however it is not the best idea as the input range limitations…
Hi Dale Li,
Thank you for your suggestions.
I have updated circuit as per recommendation. I have changed schottky diode to BAT54 and also implement circuit after resister divider, one with -12V and the other is with +12V.
Also, I am changing current Op…
Part Number: TMS320F28335 Other Parts Discussed in Thread: OPA4170 Hi,
I have arranged parallel 100pF or 22pF capacitor on the input side of ADC. Which generate oscillate input for ADC.
I request you so kindly provide us your valuable suggestion to unwanted…
