OP97 precision op-amp operating temperature range and resistor balancing question

This is an application circuit of op97. The OP97 is a low-power alternative to the industry-standard precision op-amp, the OP07. The OP97 can be substituted directly into OP07, OP77, AD725, and PM1012 sockets with improved performance and/or less power dissipation and can be inserted into sockets conforming to the 741 pinouts if nulling circuitry is not used. Generally, nulling circuitry used with earlier generation amplifiers is rendered superfluous by the extremely low offset voltage of the OP97 and can be removed without compromising circuit performance.

What confused me that is the range of temperature? Should the resistor be balanced?

Hello.
According to the datasheet the range should be –40 ° C to + 85 ° C
Greetings
Giovanni

If you are using the OP07 in place of an existing 741 based circuit, then no, the resistors can stay the say, assuming that the circuit based on the 741 worked as required. That is, if the equivalent input resistance on the input pins is not in place, then there is no need for it.
If you are using the OP07 in a new circuit, where you want to make use of the better specifications, then that is an entirely different story. For example, where stable, high DC gain is needed, you have to look at the long term stability of the resistors, their temperature coefficients, and the offset voltage and current temperature coefficients relative to the gain and resistor values. The bias current temp co is low, so unless you have very large resistors, then the voltage temp co will dominate in most instances.
The offset voltage can be nulled without detrimental effects to the drift according to the data sheet, in fact it improves slightly.
It is common practice to balance the input resistance to compensate for the bias current in precision circuits, and the application notes on the OP07 show them in place in some of their examples.
It is only when you work through a precision design that you will be able to determine if this feature is necessary.
Here is a link which might help, it is quite detailed, but then precision design is.
http://ww1.microchip.com/downloads/en/AppNotes/01177a.pdf
There is also a good section on precision circuits in book "The Art of Electronics"

Cheers,
Richard

Thanks a lot!!! You can also find answer https://www.apogeeweb.net/circuitry/op97-ampl...r-pinout-features-applications-datasheet.html

The temperature range of the OP97 precision operational amplifier (op-amp) depends on the specific variant or model of the OP97. Generally, the OP97 op-amp is designed to operate within a wide temperature range to ensure stable and reliable performance in various applications.

The standard temperature range for many OP97 op-amp models is typically -40°C to +85°C (-40°F to +185°F). This range covers a wide spectrum of temperatures, allowing the op-amp to function in both commercial and industrial environments. It is important to note that different variants or versions of the OP97 may have slightly different temperature specifications, so it is always recommended to refer to the datasheet or technical specifications provided by the manufacturer for the specific model you are working with. This will provide the accurate and detailed temperature range information for the particular OP97 op-amp you are using.