ADA4505-2ARMZ-RL

ADA4505-2 dual micropower amplifier featuring rail-to-rail input and output. Employing a new circuit technology, these low cost amplifiers offer zero input crossover distortion (excellent PSRR and CMRR performance) and very low bias current, while operating with a supply current of less than 10μA per amplifier. This combination of features makes the ADA4505-2 amplifiers ideal choices for battery-powered applications because they minimize errors due to power supply voltage variations over the lifetime of the battery and maintain high CMRR even for a rail to-rail op-amp. Remote battery-powered sensors, handheld instrumentation and consumer equipment, hazard detectors (for example, smoke, fire and gas) and patient monitors can benefit from the features of the ADA4505-2 amplifiers.

• 1.8V to 5V single-supply or ±0.9V to ±2.5V dual-supply operation
• Rail-to-rail input and output
• 3mV offset voltage maximum
• Very low input bias current: 0.5pA typ and input offset current: 0.05pA typ
• PSRR: 100dB minimum
• 50KHz typ gain bandwidth product
• 6.5mV/µs typ slew rate
• 65nV/√Hz voltage noise density and 20fA/√Hz current noise density at f = 1KHz
• 8 lead MSOP package
• Operating temperature range from -40 to 125°C

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