Data Sheet
FEATURES
Ultralow input bias current 60 fA maximum (AD549L) 100 fA maximum (AD549K) 250 fA maximum (AD549J)
Input bias current guaranteed over the common-mode
voltage range
Low offset
voltage 0.
50 mV maximum (AD549K) 1.
00 mV maximum (AD549J)
Low offset drift 15 μV/°C maximum (AD549K) 20 μV/°C maximum (AD549J)
Low power 700 μA maximum supply current Low input
voltage noise
4 μV (typ) p-p over 0.
1 Hz to 10 Hz MIL-STD-883B parts available
APPLICATIONS
Electrometer amplifier Photodiode preamp pH electrode buffer
GENERAL DESCRIPTION
The AD549 is a monolithic electrometer operational amplifier with very low input bias current.
Input offset
voltage and input offset
voltage drift are las...