What is the temperature range of OP97 precision op-amp?

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Johnhathaway

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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?

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Hi,

Temperature range:
I guess it's written in it's datasheet. Please post (a link to) the datasheet.

Balanced resistors:
This mainly is used to reduce output offset voltage caused by input bias current.
With the noninverting input connected to GND the output offset voltage (caused by bias current) is
V_out_offs_Ib = Ib x R_fb

Opamps with bipolar transistor input stage suffer from high Ib.
Modern CMOS input stage have fairly low Ib and thus usually don't need balaced input resistance.
The datasheet will tell about the expectable Ib.

Klaus
 

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The datasheet answers all questions addressed in your post. OP97 utilizes (like the mentioned precision bipolar OP07) bias current compensation. Respectively balanced source resistors won't improve offset and offset drift and are not recommended.

OP97 is targetting specifically to battery operated low power circuits. If your application doesn't need this feature, you go better with standard precision amplifiers.
 

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