Replacement for LM107

Danilo A.

Other Parts Discussed in Thread: LM741, LM338, OPA990

Hi Team,

A customer would like to use LM107 in the circuit of Figure 44 in the link below. Since the LM107 has been obsoleted, can he use LM741 or LM101A? If not, can you please suggest an alternative device to LM107.

https://www.ti.com/lit/ds/symlink/lm338.pdf?#page=22

Regards,

Danilo

over 5 years ago

0 Clemens Ladisch over 5 years ago

Guru 319620 points

The LM107 regulates the upper LM338 so that the current through the two 0.1 Ω resistors is the same.

This circuit can use any high-voltage opamp whose input common-mode range includes the positive rail. This is not true for the LM741, but the OPA990 will work.

0 Danilo A. over 5 years ago in reply to Clemens Ladisch

TI__Mastermind 31550 points

Hi Clemens,

Thank you for your suggestion and support.

Regards,

Danilo

Amplifiers

Amplifiers forum

Replacement for LM107