Opamp/instrumentation amplifier help

[mcash]

Hi,
I am looking for an opamp/instrumentation amplifier with very low input/output offset. I intend to amplify some millivolt (about 5-50mV) with it to a gain of 100. Can any one suggest me a suitable opamp or instrumentation amplifier?
Thank you.

 

[(*steve*)]

Check out "chopper stabilized op-amps". They have some internal magic that nulls out the offset.

As long as you're amplifying DC signals and you're no overly fussed with transient response, these may be the way to go.

 

[mcash]

Thank you. Can you suggest a part number?