ADA4505-2

1 Input pins have clamp diodes to the supply pins. Input current should be limited to 10 mA or less whenever the input signal exceeds the power supply rail by 0.5 V.
2 Differential input voltage is limited to 5 V or the supply voltage, whichever is less. Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only; functional operation of the device at these or any other conditions above those indicated in the operational section of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.

The ADA4505-2/ADA4505-4 are dual and quad micropower amplifiers featuring rail-to-rail input and output swings while operating from a single 1.8 V to 5 V power supply or from dual ±0.9 V to ±2.5 V power supplies.

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 10 A per amplifier.

This combination of features makes the ADA4505-2/ADA4505-4 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/ADA4505-4 amplifiers.

The ADA4505-2/ADA4505-4 are specified for both the industrial temperature range (−40 to +85) and the extended industrial temperature range (−40to +125). The ADA4505-2 dual amplifier is available in standard 8-lead MSOP and 8-ball WLCSP packages. The ADA4505-4 quad amplifier is available in a 14-lead TSSOP package.

The ADA4505-2/ADA4505-4 are members of a growing series of zero crossover op amps offered by Analog Devices, Inc., including the AD8506/AD8508, which also operate from a single 1.8 V to 5 V power supply or from dual ±0.9 V to ±2.5 V power supplies.