Finding Parts in DigiKey's "Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps" Category

I’m a design engineer and often use your site to find parts to use in a new circuit. It is a major attraction to DigiKey.
Your “Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps” category is not usable for this purpose.
The columns you have are simply not adequate to narrow down a hunt to the point where there are few enough parts to allow reading their data sheets to make a final selection.

I have a proposed solution:
For Op-Amp’s, a set of columns that are adequate to narrow down a search to a short list of parts can be found on the Analog Devices web site Selection Table for Operational Amplifiers (Op Amps) | Parametric Search | Analog Devices
For other amplifier types, they have similar tables with appropriate columns.
(1) I’d wish you would add/include the parameters/columns they have.
Also, on the site you can download a spreadsheet of a filtered (or unfiltered) table of parts, with values (numbers only) that makes each column sort-able and useful for use in equations.
(2) I’d wish you would allow filtered tables on the DigiKey site to be downloadable as a spreadsheet.

Having the spreadsheet lets me
(a) apply a series of filter functions and multi-level sort functions, and
(b) add computed columns (e.g., like creating a column that multiplies a volts column and a current column to produce a watts column) and then include them in my sorting.

For selecting parts, there are some big pluses for such a DigiKey table.
(1) I could choose a part based on how much stock there was at DigiKey.
(2) It would inform me as to what options there are from other vendors to pre-plan substitutions in a design. In other words, I often look for footprint compatible parts from different vendors that might not be electrically equivalent or identical, but could nonetheless be swapped into a circuit and still have the product meet its specifications. The “alternate” part is put into the BOM data so there are no “hiccups” if the primary part has become scarce.
(3) It would accelerate finding a last minute substitution–a tremendously important task we have more often these days.

I’m sure it’s a lot of work, but more than well worth it. I’m also sure the parts you list will not all fill all columns with a number, but that’s life and also true of ADI’s own parts. Having the info for some parts is a whole lot better than having them for none. The table they make is still tremendously useful. Having the parameters for some parts still reduces the time it takes to put part selection behind me. Once you have these columns, over time, I would expect more vendors to give DigiKey part parameters to fill more columns so designers like me would see their parts appearing in (i.e., not dropping out of) their sort, resulting in some design-in wins.

Greetings @johnm,

I can certainly relate to your perspective on these points; please allow me to mention a few workarounds I’ve found.

First, please make note of the “download table” button on the filter pages. This does indeed allow search results to be downloaded in the presently-displayed sort order.
You will likely find that a maximum of 500 results is accessible in this manner and desire an expansion of this figure for survey purposes; this is a point I’ve been raising for perhaps 18 months now. Please do use the feedback button on the website to mention it, as squeaky wheels are more likely to get greased.

As for having data in units of uniform scale, ADI’s spreadsheet download function does offer some convenience on the point. Please note however that the asterisk character can be used as a wildcard in Excel’s find and replace function, allowing units of varying scale to be replaced with exponential notation. In this manner it’s possible to obtain data of uniform scale suitable for computation quite quickly. ALT+0181 (mu) is a useful one to have memorized.

As for the breadth of parametric data offered, I wholeheartedly agree that there are additional parameters that would be useful to have exposed for selection purposes, particularly those relating to input common mode range, output headroom, etc. Note however, that DK currently lists approximately 43x more products in the op amp family than does ADI, while also having to confront problems of nonuniform presentation among different sources. This, while also maintaining data on upwards of 10M other part numbers. It’s a larger and more unwieldy task than is apparent to most.

Again, I would encourage use of the feedback tab.