ADuM7703 Datasheet | Analog Devices

FEATURES 5 MHz to 21 MHz master clock input frequency Offset drift vs. temperature: ±0.6 μV/°C maximum SNR: 86 d B typical 16 bits, no missing codes Full-scale analog input voltage range: ±320 m V ENOB: 14 bits typical IDD1: 10 m A maximum On-board digital isolator Operating temperature range - 40°C to +125°C (16-lead SOIC_W) - 40°C to +105°C (8-lead SOIC_IC) 20 V operation on VDD1 High CMTI: 150 k V/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 ponent Acceptance Notice 5A (Pending) VDE Certificate of Conformity DIN V VDE V 0884-10: VIORM = 1270 VPEAK DIN V VDE V 0884-11: VIORM = 1060 VPEAK (Pending) APPLICATIONS Shunt current monitoring AC motor controls Power and solar inverters Wind turbine inverters Analog-to-digital and optoisolator replacement GENERAL DESCRIPTION The ADu M7703 is a high performance, second-order, Σ-Δ analogto-digital converter (ADC) with an integrated low dropout (LDO) regulator 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 4.5 V to 20 V power supply range (VDD1) and accepts a pseudo differential input signal of ±250 m V (±320 m V full-scale). The pseudo 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 21 MHz. The original information can be reconstructed with an appropriate sinc3 digital filter to Rev. A 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...