The ADuM7703 is a high performance, second-order, Σ-Δ analog-to-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., iCoupler® 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 mV (±320 mV 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 achieve an 86 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 3.3 V supply (VDD2). The serial interface is digitally isolated. High speed complementary metal-oxide semiconductor (CMOS) technology, combined with monolithic transformer technology, results in the on-chip isolation providing outstanding performance characteristics, superior to alternatives such as optocoupler devices. The ADuM7703 device is available in a 16-lead, wide-body SOIC with an operating temperature range of −40°C to +125°C and an 8-lead, wide-body SOIC with an operating temperature range of −40°C to +105°C. Applications * Shunt current monitoring * AC motor controls * Power and solar inverters * Wind turbine inverters * Analog-to-digital and optoisolator replacement * 5 MHz to 21 MHz master clock input frequency * Offset drift vs. temperature: ±0.6 μV/°C maximum * SNR: 86 dB typical * 16 bits, no missing codes * Full-scale analog input voltage range: ±320 mV * ENOB: 14 bits typical * IDD1: 10 mA maximum * On-board digital isolator * Operating temperature range * −40°C to +125°C (16-lead SOICW) * −40°C to +105°C (8-lead SOICIC) * 20 V operation on VDD1 * High CMTI: 150 kV/μs minimum, VDD2 = 3.3 V https://elecena.pl/product/16954025/16-bit-isolated-sigma-delta-adc 2020-06-07 https://elecena.pl/product/16954025/16-bit-isolated-sigma-delta-adc 2025-01-21