AD8508 Datasheet
20 µA Maximum, RRIO, Zero Input Crossover Distortion Quad Op Amp
20 µA Maximum, RRIO, Zero Input Crossover Distortion Quad Op Amp
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The AD8508 is quad micro-power amplifiers featuring rail-to-rail input/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. Using a new circuit technology, these amplifiers offer zero input crossover distortion (excellent PSRR and CMRR performance) and low bias current while operating with a supply current of less than 20 μA per amplifier. This amplifier family offers the lowest noise in its power class.
This combination of features makes the AD8508 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 input op amp. Remote battery-powered sensors, handheld instrumentation, consumer equipment, hazard detection (for example, smoke, fire, and gas), and patient monitors can benefit from the features of the AD8508 amplifiers.
The AD8508 is specified for both the industrial temperature range of −40°C to +85°C and the extended industrial temperature range of −40°C to +125°C. The AD8508 quad amplifier is available in 14-lead TSSOP and 14-ball WLCSP packages. The AD8508 is members of a growing series of zero crossover distortion op amps offered by Analog Devices, Inc., including the ADA4505-4, that operate from a single 1.8 V to 5 V supply or from dual ±0.9 V to ±2.5 V power supplies.