Analog Devices AD549
The AD549 is a monolithic electrometer operational amplifier with very low input bias current. The ultralow input current of the part is achieved with Topgate™ JFET technology, a process development exclusive to Analog Devices, Inc. This technology allows fabrication of extremely low input current JFETs compatible with a standard junction isolated| Part No. | AD549 |
|---|---|
| Datasheet | AD549 Download |
| Manufacturer |  Analog Devices |
| Description | Ultralow Input Bias Current Operational Amplifier |
| Buy | Stock & Price |
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 availableAPPLICATIONS
Electrometer amplifier Photodiode preamp pH electrode bufferGENERAL DESCRIPTION
Input offset voltage and input offset voltage drift are laser trimmed for precision performance.
