PRODUCT DESCRIPTION
The AD515A is a monolithic FET-input operational amplifier with a guaranteed maximum input bias current of 75 fA (AD515AL). The AD515A is a monolithic successor to the industry standard AD515 electrometer, and will replace the AD515 in most applications. The AD515A also delivers lasertrimmed offset voltage, low drift, low noise and low power, a combination of features not previously available in ultralow bias current circuits. All devices are internally compensated, protected against latch-up and are short circuit protected.

FEATURES
    Ultralow Bias Current: 75 fA max (AD515AL)
                                        150 fA max (AD515AK)
                                        300 fA max (AD515AJ)
    Low Power: 1.5 mA max Quiescent Current (0.6 mA typ)
    Low Offset Voltage: 1.0 mV max (AD515AK & L)
    Low Drift: 15 μV/°C max (AD515AK)
    Low Noise: 4 μV p-p, 0.1 Hz to 10 Hz