Part Number: OPA4991
Tool/software:
Hi,
I'm using this circuit as an overvoltage protection circuit. I've tested it, and it works. However, there's an issue: when a load is connected, the gate voltage drops to around 3V(still Mosfet is on ). When…
Part Number: OPA4991 Tool/software: Dears
We should get the curve form of OPA4991's operation frequency and power consumption. could you help on the case?
Part Number: OPA4991 Tool/software: Hi Sir :
We are using OPA4991 instrument amplifier for small signal amplification, but we are currently facing a problem. The differential input itself introduces a signal of about 6mv, which has a significant impact…
Part Number: OPA4991-Q1 Tool/software: The datasheet for OPAx991-Q1 lists the short circuit current (Isc) as ±75mA. Does anyone know if running up to that current will degrade or damage the IC? And a step further, Can the device run long term at anything…
Part Number: OPA4991-Q1 Other Parts Discussed in Thread: LM2902BA-Q1 , OPA4991 Tool/software: Hi Ti teams,
I would like to know the approximate range of the number of transistors inside OPA4991-Q1 and LM2902BA-Q1. Can this be provided? No specific quantity…
Part Number: OPA4991 Tool/software: Hello,
My customer has the following question. After 10 years operation, Vos would meet still within datasheet spec? Best regards, K.Hirano
Part Number: OPA4991 Tool/software: Hello team,
My customer has built a voltage follower configuration using OPA4991, like below.
When only positive rail (+5.2V) is available, the output voltage is 40mV. (Customer don't want 40mV) When both rails…
Part Number: OPA4991 Other Parts Discussed in Thread: OPA4171 , Tool/software: Hi Team,
I am promoting OPA4991 to replace OPA4171 in my customer.
The DS of OPA4991 only gives output swing @25 degrees of Vin = 2.7V or 40V. Do you have the min/typ/max…
Part Number: OPA4991 Other Parts Discussed in Thread: TLV9364 , OPA4992 Tool/software: Hi,
One of my customers recently reached out to me with an issue where the slew rate they are seeing from the device is off by an order of magnitude than what they…
Part Number: OPA4991 Hello
I was going thru' the new Op Amps, especially the Quads.
OPA4991 caught my eye, and while going thru' the Data Sheet
on page 36 the following appears:
The OPAx991 is featured in several TI Precision Designs, available…
