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    Mouser – Delta-sigma modulator optimised for direct connection to shunt resistors or other low voltage signal sources (Texas Instruments AMC1305M05DWR)

    Texas Instruments AMC1305 Isolated Delta-Sigma modulators, available now from Mouser, are a precision, delta-sigma (ΔΣ) modulator with the output separated from the input circuitry by a capacitive double isolation barrier that is highly resistant to magnetic interference. This barrier is certified to provide reinforced isolation of up to 7000 VPEAK according to the DIN V VDE V 0884-10, UL1577, and CSA standards. Used in conjunction with isolated power supplies, the device prevents noise currents on a high common-mode voltage line from entering the local system ground and interfering with or damaging low voltage circuitry.

    The device is optimised for direct connection to shunt resistors or other low voltage level signal sources while supporting excellent DC and AC performance. Shunt resistors are typically used to sense currents in motor drives, green energy generation systems, or other industrial applications. By using an appropriate digital filter to decimate the bit stream, the device can achieve 16 bits of resolution with a dynamic range of 85dB (13.8 ENOB) at a data rate of 78kSPS.