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AMC1200-Q1 Datasheet(PDF) 11 Page - Texas Instruments |
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AMC1200-Q1 Datasheet(HTML) 11 Page - Texas Instruments |
11 / 30 page Isolation Barrier û Modulator RX 2.5-V Reference VOUTP VOUTN VDD2 GND2 GND1 VINP VINN VDD1 RC Oscillator RX TX TX Retiming and 3 rd-Order Active Low-Pass Filter DATA CLK 2.56-V Reference 11 AMC1200-Q1 www.ti.com SBAS585A – SEPTEMBER 2012 – REVISED JANUARY 2016 Product Folder Links: AMC1200-Q1 Submit Documentation Feedback Copyright © 2012–2016, Texas Instruments Incorporated 7 Detailed Description 7.1 Overview The AMC1200-Q1 is a fully-differential precision isolation amplifier. The input stage of the device consists of a second-order, delta-sigma ( ΔΣ) modulator, voltage reference, clock generator, and drivers for the capacitive isolation barrier. The modulator converts the analog input signal to the digital domain. The drivers transfer the output of the modulator and the clock signal across the isolation barrier that separates the high- and low-voltage domains. The received bitstream and clock signals are synchronized and processed by a third-order analog filter with a nominal gain of 8 on the low-side and presented as a differential output of the device, as shown in the Functional Block Diagram section. The SiO2-based capacitive isolation barrier supports a high level of magnetic field immunity, as described in application report, ISO72x Digital Isolator Magnetic-Field Immunity (SLLA181). The digital modulation used in the AMC1200-Q1 and the isolation barrier characteristics result in high reliability and common-mode transient immunity. 7.2 Functional Block Diagram |
Número de pieza similar - AMC1200-Q1_16 |
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Descripción similar - AMC1200-Q1_16 |
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