The LMP7721 is the industry's lowest guaranteed input bias current precision amplifier. The ultra low input bias current is 3 fA, with a guaranteed limit of 20 fA at 25C and 900 fA at 85C. This is achieved with the latest patent pending technology of input bias current cancellation amplifier circuitry. This technology also maintains the ultra low input bias current over the entire input common mode voltage range of the amplifier. Other outstanding features, such as low voltage noise (6.5 ), low DC offset voltage (150 V maximum at 25C) nV/