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AD104JY Scheda tecnica(PDF) 1 Page - Analog Devices |
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AD104JY Scheda tecnica(HTML) 1 Page - Analog Devices |
1 / 6 page One Technology Way, P.O. Box 9106, Norwood. MA 02062-9106, U.S.A. Tel: 617/329-4700 Fax: 617/326-8703 FUNCTIONAL BLOCK DIAGRAM REV. A 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 which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. a General Purpose Input Isolation Amplifier AD102/AD104 FEATURES Integral Isolated Power Supply 500 V rms CMV Isolation Rating (100% Tested) High Accuracy: 0.05% Max Nonlinearity Small SIP Style Footprint Lowest Priced Isolation Amplifiers APPLICATIONS Single/Multichannel Data Acquisition Systems Process Control Input Signal Isolation Motor Control Utility Power Monitoring General Input Protection Circuits Ground Loop Interruption GENERAL DESCRIPTION The AD102 and AD104 are general purpose, two-port, isolation amplifiers suitable for use where input signal isolation is desired. Each offers a functionally complete, compact isolation solution rated at 500 V rms common mode, based upon the proven and reliable transformer-coupled, galvanic isolation technique used in all AD200 series isolation amplifier products. Each model is offered in a minimum footprint package requiring no external components to operate. Though similar to the AD202 and AD204, the AD102 and AD104 models are in- tended as lower cost solutions where the performance of the AD202 or AD204 is not demanded. Both the AD102 and AD104 can be used in applications where input-to-input and/or input-to-system isolation is desired. The AD102 is best suited for single input uses as it requires only +15 V dc power to operate. It may also be appropriate for multichannel applications when input-to-input isolation is not required such as where a single input multiplexer selects a spe- cific channel prior to isolation. For applications where input to input isolation is required, the AD104 may be a more desirable choice. It offers the lowest cost per channel especially when powered from a common clock source, the cost of which may be amortized over many channels. The clock necessary for AD104 operation is a 25 kHz, 15 V p-p square wave applied to the clock input pin. Most standard oscil- lator components like a CD4047 or TL555 may be used, or a designer may choose the AD246 clock driver developed for the AD204 product. PRODUCT HIGHLIGHTS Complete, Single Device Solution for Input Isolation The AD102 offers full isolation without external parts or need for an external dc/dc power source. The AD104 features the same functionality at a lower price for multichannel uses when supplied with a 25 kHz clock signal. High Accuracy A maximum nonlinearity of 0.05% is specified for both the AD102 and AD104 over the rated temperature range. Wide Bandwidth Each is specified with a full power (–3 dB) bandwidth. The AD104 at 4 kHz and the AD102 at 1.5 kHz. High Performance Common-Mode Rejection While providing continuous 500 V rms isolation, greater than 100 dB rejection is provided. Each part has only 5.5 pF (typical) of common-mode input capacitance. Uncommitted Input Stage Both models offer an uncommitted op amp input stage for user flexibility and input gain optimization up to 100 V/V. Low Power Consumption The AD104 consumes only 35 mW from the clock source, the AD102 only 75 mW from the +15 V dc supply. ±5V FS SIGNAL ICOM PWR/CLK COM 25kHz POWER DEMOD AMPLIFIER AND MODULATOR POWER RECTIFIER OSCILLATOR FILTER AD102 OUT H I OUT LO +15V DC IN+ IN– FB 3 6 5 4 9 1 7 2 |
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