AD7403 Datasheet | Analog Devices

FEATURES 5 MHz to 20 MHz external clock input rate 16 bits, no missing codes Signal-to-noise ratio (SNR): 88 d B 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 m V Operating range AD7403: - 40°C to + 125°C AD7403-8: - 40°C to + 105°C High mon-mode transient immunity: >25 k V/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 ponent 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., i Coupler® technology. The device operates from a 5 V (VDD1) power supply and accepts a differential input signal of ±250 m V (±320 m V 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 responsibilityisassumedby Analog Devices for itsuse,nor foranyinfringementsofpatentsor other rights of third parties that may result from its use. Specifications subject to change without notice. No...