Reinforced isolated modulator with -55C extended temperature range

The AMC1306M25E is a

precision, delta-sigma (ΔΣ) modulator with the output separated from the input

circuitry by an isolation barrier that is highly resistant to magnetic interference.

This barrier is certified to provide reinforced isolation of up to 7070

VPEAK according to the DIN EN IEC 60747-17 (VDE 0884-17) and UL1577

standards, and supports a working voltage up to 1.5 kVRMS. The isolation

barrier separates parts of the system that operate on different common-mode voltage

levels and protects the low-voltage side from voltages that can cause electrical

damage or be harmful to an operator.

The input of the AMC1306M25E is optimized for direct connection to shunt resistors or

other low voltage-level signal sources. The excellent DC accuracy and low

temperature drift supports accurate current control in onboard chargers (OBC), DC/DC

converters, traction inverters, or other high-voltage applications. By using an

integrated digital filter (such as those in the TMS320F2807x or TMS320F2837x microcontroller families) to decimate the bitstream, the

device can achieve 16 bits of resolution with a dynamic range of 85 dB at a data

rate of 78 kSPS.

The AMC1306M25E is offered in a 8-pin, wide-body SOIC package, is fully

specified over the extended industrial temperature range of –40°C to +125°C, and

supports operation down to –55°C.