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ADA4505-2ARMZ Datasheet(PDF) 1 Page - Analog Devices |
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ADA4505-2ARMZ Datasheet(HTML) 1 Page - Analog Devices |
1 / 24 page 10 μA, Rail-to-Rail I/O, Zero Input Crossover Distortion Amplifiers ADA4505-1/ADA4505-2/ADA4505-4 Rev. D Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringementsof patentsorother rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 www.analog.com Fax: 781.461.3113 ©2008–20 10 Analog Devices, Inc. All rights reserved. supplies. FEATURES PSRR: 100 dB minimum CMRR: 105 dB typical Very low supply current: 10 μA per amplifier maximum 1.8V to 5V single-supply or ±0.9V to ±2.5V dual-supply operation Rail-to-rail input and output 3 mV offset voltage maximum Very low input bias current: 0.5 pA typical APPLICATIONS Pressure and position sensors Remote security Medical monitors Battery-powered consumer equipment Hazard detectors GENERAL DESCRIPTION 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 and a 6-ball WLCSP. 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 AD8505/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 PIN CONFIGURATIONS OUT 1 +IN 3 V– 2 V+ 5 –IN 4 ADA4505-1 TOP VIEW (Not to Scale) OUT A 1 –IN A 2 +IN A 3 V– 4 V+ 8 OUT B 7 –IN B 6 +IN B 5 ADA4505-2 TOP VIEW (Not to Scale) Figure 1. 5-Lead SOT-23 (RJ-5) Figure 2. 8-Lead MSOP (RM-8) OUT V+ V– +IN –IN TOP VIEW (BALL SIDE DOWN) Not to Scale A1 A2 B1 B2 C1 C2 BALL A1 INDICATOR NC ADA4505-1 NC = NO CONNECT ADA4505-2 TOP VIEW (BALL SIDE DOWN) BALL A1 CORNER OUT B V+ OUT A A1 A2 A3 +IN B V– +IN A C1 C2 C3 –IN B –IN A B1 B3 Figure 3. 6-Ball WLCSP (CB-6-7) Figure 4. 8-Ball WLCSP (CB-8-2) ADA4505-4 1 2 3 4 5 6 7 –IN A +IN A V+ OUT B –IN B +IN B OUT A 14 13 12 11 10 9 8 –IN D +IN D V– OUT C –IN C +IN C OUT D TOP VIEW (Not to Scale) ADA4505-4 TOP VIEW (BALL SIDE DOWN) Not to Scale C1 C3 A1 B1 D1 E1 A2 B2 D2 E2 A3 B3 D3 E3 BALL A1 INDICATOR OUT D OUT A –IN A –IN D V– +IN A +IN D +IN B +IN C V+ –IN B –IN C OUT C OUT B Figure 5. 14-Lead TSSOP (RU-14) Figure 6. 14-Ball WLCSP (CB-14-1) |
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