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AD7403

Analog Devices
Part Number AD7403
Manufacturer Analog Devices
Description Isolated Sigma-Delta Modulator
Published May 10, 2014
Detailed Description Data Sheet 16-Bit, Isolated Sigma-Delta Modulator AD7403 FEATURES 5 MHz to 20 MHz external clock input rate 16 bits, n...
Datasheet PDF File AD7403 PDF File

AD7403
AD7403

Overview
Data Sheet 16-Bit, Isolated Sigma-Delta Modulator AD7403 FEATURES 5 MHz to 20 MHz external clock input rate 16 bits, no missing codes Signal-to-noise ratio (SNR): 88 dB typical Effective number of bits (ENOB): 14.
2 bits typical Offset drift vs.
temperature AD7403: 1.
6 µV/°C typical AD7403-8: 2 µV/°C typical On-board digital isolator On-board reference Full-scale analog input range: ±320 mV Operating range AD7403: −40°C to + 125°C AD7403-8: −40°C to + 105°C High common-mode transient immunity: >25 kV/µs Wide-body SOIC with increased creepage package Slew rate limited output for low EMI Safety and regulatory approvals UL recognition 5000 V rms for 1 minute per UL 1577 CSA Component Acceptance Notice 5A VDE Certificate of Conformity DIN V VDE V 0884-10 (VDE V 0884-10):2006-12 VIORM = 1250 VPEAK APPLICATIONS Shunt current monitoring AC motor controls Power and solar inverters Wind turbine inverters Data acquisition systems Analog-to-digital and optoisolator replacements GENERAL DESCRIPTION The AD74031 is a high performance, second-order, Σ-Δ modulator that converts an analog input signal into a high speed, single-bit data stream, with on-chip digital isolation based on Analog Devices, Inc.
, iCoupler® technology.
The device operates from a 5 V (VDD1) power supply and accepts a differential input signal of ±250 mV (±320 mV full-scale).
The differential input is ideally suited to shunt voltage monitoring in high voltage applications where galvanic isolation is required.
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 20 MHz.
The original 1 Protected by U.
S.
Patents 5,952,849; 6,873,065; and 7,075,329.
Rev.
B Document Feedback Information furnished by Analog Devices is believed to be accurate and reliable.
However, no responsibilityisassumedbyAnalogDevices for itsuse,nor foranyinfringementsofpatentsor other rights of third parties that may result from its ...


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