Category: Hardware
Product Number: LT1112
Hi!
I try to replace OPA2277 OpAmp for LT1112, mainly because I need more precise DC and offset behavior. The opamps are feeded with +-12Vdc. For OPA2277, and many others OpAmps tested, I can buffer voltages with +- 10V. With LT1112, when the positive voltage reaches aprox. +9V the output becames saturated. The negative side was OK. The load is a 12KOhm resistor on both cases. The circuit is very simple, just a buffer with bypass capacitors close to the opamp.
OPA2277, LF353 and AD706 work at the same condition, but LT1112 no.
Any ideas???
Cristiano
