ADA4528-1

Data Sheet Precision, Ultralow Noise, RRIO, Zero-Drift Op Amp ADA4528-1/ADA4528-2 FEATURES Low offset voltage: 2.5 µV maximum Low offset voltage drift: 0.015 μV/°C maximum Low noise 5.6 nV/√Hz at f = 1 kHz, AV = +100 97 nV p-p at f = 0.1 Hz to 10 Hz, AV = +100 Open-loop gain: 130 dB minimum CMRR: 135 dB minimum PSRR: 130 dB minimum Unity-gain crossover: 4 MHz Gain bandwidth product: 3 MHz at AV = +100 −3 dB closed-loop bandwidth: 6.2 MHz Single-supply operation: 2.2 V to 5.5 V Dual-supply operation: ±1.1 V to ±2.75 V Rail-to-rail input and output Unity-gain stable APPLICATIONS Thermocouple/thermopile Load cell and bridge transducers Precision instrumentation Electronic scales Medical instrumentation Handheld test equipment GENERAL DESCRIPTION The ADA4528-1/ADA4528-2 are ultralow noise, zero-drift operational amplifiers featuring rail-to-rail input and output swing. With an offset voltage of 2.5 μV, offset voltage drift of 0.015 μV/°C, and typical noise of 97 nV p-p (0.1 Hz to 10 Hz, AV = +100), the ADA4528-1/ADA4528-2 are well suited for applications in which error sources cannot be tolerated. The ADA4528-1/ADA4528-2 have a wide operating supply range of 2.2 V to 5.5 V, high gain, and excellent CMRR and PSRR specifications, which make it ideal for applications that require precision amplification of low level signals, such as position and pressure sensors, strain gages, and medical instrumentation. The ADA4528-1/ADA4528-2 are specified over the extended industrial temperatu...