ADA4505-4ARUZ-RL

10 μA ，轨至轨I / O，零输入交越失真放大器 10 μA, Rail-to-Rail I/O, Zero Input Crossover Distortion Amplifiers

Product Details

The ADA4505-1/ADA4505-2/ADA4505-4 are single, 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 μA per amplifier.

This combination of features makes the ADA4505-x 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-x amplifiers.

The ADA4505-x family is specified for both the industrial temperature range −40°C to +85°C and the extended industrial temperature range −40°C to +125°C. The ADA4505-1 single amplifier is available in a tiny 5-lead SOT-23. The ADA4505-2 dual amplifier is available in a standard 8-lead MSOP and a 8-ball WLCSP. The ADA4505-4 quad amplifier is available in a 14-lead TSSOP and a 14-ball WLCSP.

The ADA4505-x family is a member 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.

**Applications**

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Pressure and position sensors

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Remote security

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Medical monitors

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Battery-powered consumer equipment

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Hazard detectors

### Features and Benefits

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PSRR: 100 dB minimum

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CMRR: 105 dB typical

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Very low supply current: 10 μA per amplifier maximum

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1.8 V to 5 V single-supply or ±0.9 V to ±2.5 V dual-supply operation

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Rail-to-rail input and output

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3 mV offset voltage maximum

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Very low input bias current: 0.5 pA typical