GENERAL DESCRIPTION
●The AD7401A1 is a second-order, sigma-delta (Σ-Δ) modulator that converts an analog input signal into a high speed, 1-bit data stream with on-chip digital isolation based on Analog Devices, Inc., iCoupler® technology. The AD7401A operates from a 5 V power supply and accepts a differential input signal of ±250 mV (±320 mV full scale). The analog input is continuously sampled by the analog modulator, eliminating the need for external sample-and-hold circuitry.
●FEATURES
●20 MHz maximum external clock rate
●Second-order modulator
●16 bits, no missing codes
●±2 LSB INL typical at 16 bits
●1 μV/°C typical offset drift
●On-board digital isolator
●On-board reference
●±250 mV analog input range
●Low power operation: 17 mA typical at 5.5 V
●−40°C to +125°C operating range
●16-lead SOIC package
●Internal clock version: AD7400A
●Safety and regulatory approvals
● UL recognition
● 3750 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= 891 V peak
●APPLICATIONS
●AC motor controls
●Shunt current monitoring
●Data acquisition systems
●Analog-to-digital and opto-isolator replacements
