描述 Description

The ACPL-796J is a 1-bit, second-order sigma-delta (Σ-Δ) modulator converts an analog input signal into a high-speed data stream with galvanic isolation based on optical coupling technology. The ACPL-796J operates from a 5 V power supply with dynamic range of 80 dB with an appropriate digital filter. The differential inputs of ±200 mV (full scale ±320 mV) are ideal for direct connection to shunt resistors or other low-level signal sources in applications such as motor phase current measurement.

特性 Features

? 5 MHz to 20 MHz external clock input range

? 1-bit, second-order sigma-delta modulator

? 16 bits resolution no missing codes (12 bits ENOB)

? 74 dB minimum SNR

? 3.5 μV/°C maximum offset drift

? ±1 maximum gain error

? Internal reference voltage

? ±200 mV linear range with single 5 V supply

? 3 V to 5.5 V wide supply range for digital interface

? –40°C to +105°C operating temperature range

? SO-16 package

? 25 kV/μs common-mode transient immunity

? Safety and regulatory approval:

IEC/EN/DIN EN 60747-5-5: 1414 Vpeak working

insulation voltage

UL 1577: 5000 Vrms/1min double protection rating

CSA: Component Acceptance Notice #5

Applications

? Motor phase and rail current sensing

? Power inverter current and voltage sensing

? Industrial process control

? Data acquisition systems

? General purpose current and voltage sensing

? Traditional current transducer replacements