AD844_07 AD [Analog Devices], AD844_07 Datasheet
AD844_07
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AD844_07 Summary of contents
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PRODUCT DESCRIPTION The AD844 is a high-speed monolithic operational amplifier fabricated using Analog Devices’ junction isolated complemen- tary bipolar (CB) process. It combines high bandwidth and very fast large signal response with excellent dc performance. Although optimized for use ...
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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–Typical Characteristics SUPPLY VOLTAGE – V Ω SUPPLY VOLTAGE – ...
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Inverting Gain-of-1 AC Characteristics +V S 4.7 0. – IN AD844 V OUT + 0.22 F 4.7 –V S Inverting Gain-of-10 AC Characteristics +V S 4.7 0.22 F 500 50 V – ...
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AD844 Inverting Gain-of-10 Pulse Response Noninverting Gain-of-10 AC Characteristics +V S 0.22 F 4.7 450 – V OUT 50 AD844 0. 4.7 –V S Ω Ω 500 ...
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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 which need to be understood in order to ...
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AD844 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 ...
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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 current ...
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AD844 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 ...
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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 ((Inp R + ...
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AD844 DIGITAL INPUTS 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 sheet for full details.) Figure 14 shows a simple ...
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V = 3.15V X – 1.0V X – 0.316V X – 0.10V X – 0.032V X –46 –56 100k 1M 10M FREQUENCY – Hz 60M AD844 ...
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AD844 0.0118 (0.30) 0.0040 (0.10) OUTLINE DIMENSIONS Dimensions shown in inches and (mm). Mini-DIP (N) Package (N-8) 0.430 (10.92) 0.348 (8.84 0.280 (7.11) 0.240 (6.10 0.325 (8.25) PIN 1 0.100 (2.54) 0.300 (7.62) BSC 0.060 (1.52) ...
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Revision History Location Data Sheet changed from REV REV. C. Edits to SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . ...
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