OPA2340: Alternate for OPA234EA/250

Jackson Carmichael

Part Number: OPA2340
Other Parts Discussed in Thread: OPA187, , OPA202, OPA196, OPA206, OPA186, OPA205

Hello

I am looking for an alternate for the OPA234EA/250 as it is Obsolete. I don't see any information about it on TI's website but I would appreciate if you could direct me to the best, active alternative.

Thanks!

10 months ago

0 Clemens Ladisch 10 months ago

Guru 287370 points

Here is a search for similar amplifiers in the VSSOP package:
ti.com/amplifier-circuit/op-amps/precision/products.html#78=In;In to 0V-&480=1&2954=VSSOP&1typ=0.000425;0.5

The OPA187‍IDGKR has the most similar speed, but I do not know what characteristics you actually need.

+1 Marek Lis 10 months ago

TI__Guru 64530 points

Hi Jackson,

There is a world of difference between the active low- supply voltage (5V) OPA2340 (dual) and obsoleted high volage (36V) OPA234 (single) - see below its datasheet.

OPA234_2234_4234.pdf

Thus, I presume you are asking for the replacement of OPA234. From the bipolar technology point of view, OPA202 and OPA205/OPA206 would be the closest match. However, there are rail-to-rail CMOS op amps like OPA196 (e-trim) and OPA186 (24V zero-drift) that could also be used.

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OPA2340: Alternate for OPA234EA/250