Best Low Power buffer op amp

[JWeij.1]

I need to measure a signal with very low power, the signal can range anywhere between -1 and +10 Volts but i only need the 0 to 3volts for my ADC input(my battery is also 3V). is there an opamp that fits my requirements that is less than 50uA?

[MikeDB]

TLV9042 from TI probably fits your needs