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AD795 Arkusz danych(PDF) 1 Page - Analog Devices |
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AD795 Arkusz danych(HTML) 1 Page - Analog Devices |
1 / 16 page CONNECTION DIAGRAMS 8-Pin SOIC (RN) Package 1 2 3 4 8 7 6 5 AD795 NC –IN +IN –VS NC +VS OUTPUT NC NC = NO CONNECT REV. B Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. a Low Power, Low Noise Precision FET Op Amp AD795 FEATURES Low Power Replacement for Burr-Brown OPA-111, OPA-121 Op Amps Low Noise 2.5 V p-p max, 0.1 Hz to 10 Hz 11 nV/ ÷Hz max at 10 kHz 0.6 fA/ ÷Hz at 1 kHz High DC Accuracy 250 V max Offset Voltage 3 V/ C max Drift 1 pA max Input Bias Current Low Power: 1.5 mA max Supply Current APPLICATIONS Low Noise Photodiode Preamps CT Scanners Precision l-to-V Converters PRODUCT DESCRIPTION The AD795 is a low noise, precision, FET input operational amplifier. It offers both the low voltage noise and low offset drift of a bipolar input op amp and the very low bias current of a FET-input device. The 10 14 W common-mode impedance insures that input bias current is essentially independent of common-mode voltage and supply voltage variations. The AD795 has both excellent dc performance and a guaran- teed and tested maximum input voltage noise. It features 1 pA maximum input bias current and 250 mV maximum offset volt- age, along with low supply current of 1.5 mA max. 1k 10 1 10 100 10k 1k 100 FREQUENCY – Hz AD795 Voltage Noise Spectral Density Furthermore, the AD795 features a guaranteed low input noise of 2.5 mV p-p (0.1 Hz to 10 Hz) and a 11 nV/÷Hz max noise level at 10 kHz. The AD795 has a fully specified and tested input offset voltage drift of only 3 mV/∞C max. The AD795 is useful for many high input impedance, low noise applications. The AD795J and AD795K are rated over the commercial temperature range of 0 ∞C to +70∞C. The AD795 is available in 8-pin SOIC. 50 0 5 –4 10 –5 30 20 40 4 3 2 1 0 –1 –2 –3 INPUT OFFSET VOLTAGE DRIFT – mV/∞C SAMPLE SIZE = 570 Typical Distribution of Average Input Offset Voltage Drift One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781/329-4700 www.analog.com Fax: 781/326-8703 © Analog Devices, Inc., 2002 |
Podobny numer części - AD795_02 |
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Podobny opis - AD795_02 |
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