AMC1100DUBR

The AMC1100DUBR from Texas Instruments is a precision isolation amplifier featuring a fully differential output. It is designed for current sensing applications and utilizes a silicon dioxide barrier for galvanic isolation, rated up to 4250V PEAK.

Key electrical specifications include a ±250mV peak-to-peak input voltage range, optimized for shunt resistors. It offers very low nonlinearity of 0.075% maximum, a low offset error of 1.5mV maximum, and low noise of 3.1mV RMS typical. The device operates with a low high-side supply current of 8mA maximum at 5V and has an input bandwidth of 60kHz minimum. The fixed gain is 8 with 0.5% accuracy, and it boasts a high common-mode rejection ratio of 108dB.

This isolation amplifier operates with a low-side supply voltage of 3.3V and has a working isolation voltage of 800Vrms. It meets safety-related certifications including 4250-V PK basic isolation per DIN VDE V 0884-11:2017-01 and 3005-V RMS isolation for 1 minute per UL1577. The device is fully specified over an extended industrial temperature range of -40°C to 105°C.

The AMC1100DUBR is available in SOP (DUB) and SOIC (DWV) packages, both surface mountable. The SOP (DUB) package has an area of 98.8 mm² with dimensions of 9.5 mm x 10.4 mm, while the SOIC (DWV) package has an area of 67.275 mm² with dimensions of 5.85 mm x 11.5 mm.