User Manual
This document describes how to convert the AD7400A into an isolated amplifier using a simple RC filter or more sophisticated active filters. The AD7400A is an isolated ΣΔ modulator typically used to measure current or monitor DC bus voltage in motor drives.
Datasheet
The AD7400A1 is a second-order Σ-Δ modulator from Analog Devices that offers 16-bit resolution, 10 MHz clock rate, ±2LSB INL, 1.5μV/°C typical offset drift, low power consumption, etc.
User Manual
AD7400A Rev. A is an isolated Sigma-Delta modulator. Its features include a 10 MHz clock rate, second-order modulator, 16 bits with no missing codes, typical ±2 LSB INL, typical 1.5 μV/°C offset drift, on-board digital isolator, on-board reference, ±250 mV analog input range, low power operation, -40°C to +125°C operating range, etc.
