Серия аналогово цифровых преобразователей (АЦП) ADUM7702

Общие характеристики

Раздел Аналогово Цифровые Преобразователи (АЦП)
Разрядность АЦП
Кол-во измерительных каналов
Частота преобразования
Уровень сигнал/шум
Потребляемая мощность
Диапазон питающих напряжений аналоговой части
Диапазон питающих напряжений цифровой части
Диапазон рабочих температур
Корпус SO-16 SOIC16

Документация на серию ADUM7702

16-Bit, Isolated, Sigma-Delta Modulator ADuM7702 Data Sheet FEATURES FUNCTIONAL BLOCK DIAGRAM VDD2 ADuM7702 VIN+ VIN– GAIN Σ-Δ ADC CLK DECODER CLK ENCODER MCLKIN DATA ENCODER DATA DECODER MDAT GND2 GND1 23727-001 5 MHz to 21 MHz master clock input frequency Offset drift vs. temperature: ±0.25 µV/°C SNR: 82 dB typical 16 bits, no missing codes Full-scale analog input voltage range: ±64 mV ENOB: 13 bits typical IDD1: 10 mA maximum On-board digital isolator Operating temperature range: −40°C to +125°C High isolation common-mode transient immunity: 150 kV/µs minimum, VDD2 = 3.3 V Wide-body SOICs 16-lead SOIC_W 8-lead SOIC_IC with increased creepage Safety and regulatory approvals UL recognition 5700 V rms for 1 minute per UL 1577 CSA Component Acceptance Notice 5A VDE Certificate of Conformity DIN V VDE V 0884-10: VIORM = 1270 VPEAK DIN V VDE V 0884-11: VIORM = 1060 VPEAK (pending) VDD1 Figure 1. APPLICATIONS Shunt current monitoring AC motor controls Power and solar inverters Wind turbine inverters Analog-to-digital and optoisolator replacement GENERAL DESCRIPTION The ADuM7702 is a high performance, second-order, Σ-Δ modulator that converts an analog input signal to a high speed, single-bit data stream, with on-chip digital isolation based on Analog Devices, Inc., iCoupler® technology. The device operates from a 4.5 V to 5.5 V power supply range (VDD1) and accepts a pseudo differential input signal of ±50 mV (±64 mV full-scale). The pseudo differential input is ideally suited to shunt voltage monitoring in high voltage applications where galvanic isolation is required. Rev. 0 The analog input is continuously sampled by a high performance analog modulator and converted to a ones density digital output stream with a data rate of up to 21 MHz. The original information can be reconstructed with an appropriate sinc3 digital filter to achieve an 82 dB signal-to-noise ratio (SNR) at 78.1 kSPS with a 256 decimation rate and a 20 MHz master clock. The serial input and output operates from a 5 V or a 3 V supply (VDD2). The serial interface is digitally isolated. High speed complementary metal-oxide semiconductor (CMOS) technology, combined with monolithic transformer technology, results in on-chip isolation providing outstanding performance characteristics, superior to alternatives such as optocoupler devices. The ADuM7702 is available in both a 16-lead SOIC_W and an 8-lead SOIC_IC and has an operating temperature range of −40°C to +125°C. Document Feedback 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. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective owners. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 ©2020 Analog Devices, Inc. All rights reserved. Technical Support www.analog.com PDF
Документация на серию ADUM7702 

ADuM7702 (Rev. 0) 16-Bit, Isolated, Sigma-Delta Modulator

Дата модификации: 15.07.2020

Размер: 486 Кб

22 стр.

    Товары серии ADUM7702

    Наименование i Упаковка Архитектура
    ADUM7702-8BRIZ (AD)
    ADUM7702-8BRIZ-RL (AD)
    ADUM7702-8BRIZ-RL7 (AD)
    ADUM7702BRWZ (AD)
    ADUM7702BRWZ-RL (AD)
    ADUM7702BRWZ-RL7 (AD)

    ADUM7702 публикации

    06 мая 2021

    Изолированный сигма-дельта-модулятор ADuM7702 Analog Devices для управления двигателями и измерения токов

    Сигма–дельта–модуляторы ADuM7702 производства компании Analog Devices предназначены для преобразования псевдодифференциального аналогового сигнала ±50 мВ в изолированный высокоскоростной однобитовый поток данных. Эти микросхемы... ...читать