AD844JRZ-16 Analog Devices Inc, AD844JRZ-16 Datasheet
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AD844JRZ-16
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AD844JRZ-16 Summary of contents
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FEATURES Wide Bandwidth: 60 MHz at Gain of –1 Wide Bandwidth: 33 MHz at Gain of –10 Very High Output Slew Rate 2000 MHz Full Power Bandwidth p-p, R Fast Settling: 100 ...
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AD844–SPECIFICATIONS Model Conditions 1 INPUT OFFSET VOLTAGE T –T MIN MAX vs. Temperature vs. Supply 5 V–18 V Initial T –T MIN MAX vs. Common Mode V Initial T –T MIN MAX INPUT BIAS CURRENT 1 –Input Bias Current T ...
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Model Conditions OUTPUT SLEW RATE Overdriven Input FULL POWER BANDWIDTH p-p V OUT p-p V OUT THD = 3% OUTPUT CHARACTERISTICS Voltage R Short Circuit Current T –T MIN MAX ...
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AD844 1 ABSOLUTE MAXIMUM RATINGS Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± ...
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C and unless otherwise noted TPC 1. –3 dB Bandwidth vs. Supply Voltage 500 Ω ...
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AD844 Inverting Gain-of-1 AC Characteristics +V S 4.7 0. – IN AD844 V OUT + 0.22 F 4.7 –V S TPC 10. Inverting Amplifier, Gain of –1 (R1 = R2) TPC 13. ...
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Inverting Gain-of-10 Pulse Response TPC 18. Large Signal Pulse Response, Gain = –10, R Noninverting Gain-of-10 AC Characteristics +V S 0.22 F 4.7 450 – V OUT 50 AD844 0. 4.7 –V S TPC ...
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AD844 UNDERSTANDING THE AD844 The AD844 can be used in ways similar to a conventional op amp while providing performance advantages in wideband applications. However, there are important differences in the internal structure that need to be understood in order ...
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Table I. Gain (MHz) GBW (MHz) –1 1 kΩ 1 kΩ 35 500 Ω 500 Ω –1 60 –2 2 kΩ 1 kΩ 15 500 Ω –2 1 kΩ 30 –5 5 kΩ 1 kΩ 5.2 500 ...
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AD844 It is important to understand that the low input impedance at the inverting input is locally generated and does not depend on feedback. This is very different from the “virtual ground” conventional operational amplifier used in the ...
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Input Impedance At low frequencies, negative feedback keeps the resistance at the inverting input close to zero. As the frequency increases, the impedance looking into this input will increase from near zero to the open-loop input resistance, due to bandwidth ...
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AD844 Noise Noise sources can be modeled in a manner similar to the dc bias currents, but the noise sources are induced noise at the output is: ON ...
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DIGITAL INPUTS Figure 13. DAC Amplifier Full-Scale Transient Response 20 MHz Variable Gain Amplifier The AD844 is an excellent choice as an output amplifier for the AD539 multiplier, in all of its connection modes. (See AD539 data ...
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AD844 + 3.15V X – 1.0V X – 0.316V X – 0.10V X – 0.032V X –46 –56 100k 1M FREQUENCY – Hz Figure 15. VGA AC Response 10M 60M ...
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CONTROLLING DIMENSIONS ARE IN INCHES; MILLIMETER DIMENSIONS (IN PARENTHESES) ARE ROUNDED-OFF INCH EQUIVALENTS FOR REFERENCE ONLY AND ARE NOT APPROPRIATE FOR USE IN DESIGN 8-Lead Ceramic DIP–Glass Hermetic ...
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AD844 Revision History Location 1/03 Data Sheet changed from REV REV. E. Updated FEATURES . . . . . . . . . . . . . . . . . . . . . . . . ...