AD7401A Datasheet PDF - ADI

●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