Part Number: OPA349 Good morning,
We are currently using the OPA349SA/3K in a unity gain configuration (with slight topology changes) to receive 0.675V on the positive input terminal and to output 0.675V from the circuit. Here is the circuit:
We…
Other Parts Discussed in Thread: TLV3691 , TLV3491 , OPA349 I need to know how the following devices OPA349 (nanowatt opamp), TLV3491/TLV3691(nanowatt comparators) behave when their DC power raises very slowly, 45 seconds or more from 0 to 3V...
I intend…
Other Parts Discussed in Thread: OPA349 I have ac simulation of OPA349 in inverting configuration that has large feedback resistor (<10K). With very large gains, the simulation shows a drastic drop in low freq gain (> 1M no gain at all). Does anyone know…
Part Number: TLV9001 Other Parts Discussed in Thread: OPA348 , OPA349 Hello,
One of my customers who has used OPA348A asked whether TLV9001I's SR is better than OPA348A's, or if there are any differences between them. However, I'm not sure how to answer…
Thank for your repply.
Today I used OPA349 instead. And the wave shape in scope like this:
channel 1 : power supply which is 6V DC
channel2 : output voltage which have been intergrated
Carlos,
You do not specify what other parameters besides IQ and bandwidth are critical in your customer's application but here are some other options:
OPA369 (800nA, 12kHz) , OPA349 (1uA, 70kHz) and OPA379 (2.9uA, 90kHz).
Hi Eric,
Thanks for the information. I would like a voltage reference that consumes a few uA. I could go with an op amp such as the OPA349 in unity gain with a resistor divider on the input but for the divider to consume minimal current the resistors…
Part Number: INA149 Other Parts Discussed in Thread: THS4061 Tool/software: In one of my board i have a OPAMP.
I am unable to identify exact part no.
On IC TI49 ABT is mentioned..
David,
I did a quick simulation and found that the output impedance of the OPA349 is approximately 100 ohms at 150 Hz and rises linearly with frequency. This is not quite as high as I thought and may not be an issue. You are correct that open loop gain…
