HIGH SPEED AMP

eli

Guru 13485 points

Other Parts Discussed in Thread: LMH6655, LM6172, LMH6704, LMH6723, LMH6618

For redesign an old board,customer is looking to to replace below old amp. with neweer/improved preformances device:

1. LM6172. I saw recomendation for LMH6655. Any other solution

2. MAX4180. Profered with integrated resistor,need low power ,+-5V

over 14 years ago

0 Hooman Hashemi over 14 years ago

TI__Mastermind 22825 points

Eli,

1. LM6172 has a wide supply voltage range (up to 36V) and super high slew rate (3000 V/us) for a voltage feedback device. There are probably several possibilities open if you don't need the large supply voltage / range. If you send me a list of the most important parameters and package types, I can do a search for you for the best replacement.

2. When you say "with integrated resistor", do you mean something like the LMH6704? Again, a list of the most important specs can help find the best replacement.

Thanks,

Hooman

0 eli over 14 years ago in reply to Hooman Hashemi

Guru 13485 points

Hooman,

As a replacement to MAXIM,Need 1mA Vcc curent at +-5v amp with the same gain/BW of the MAX part

B.regards

Eli

0 Hooman Hashemi over 14 years ago in reply to eli

TI__Mastermind 22825 points

Hi Eli,

The closest parts to MAX4180 would be LMH6723 and LMH6618 (SOT23 package).

LMH6618 has shutdown (like MAX4180) but it is slower and has lower slew rate as well. LMH6723 does not have shutdown but has higher speed at about the same power.

Thanks,

Hooman