SBAS771D June 2017 – October 2024 AMC1303E0510 , AMC1303E0520 , AMC1303E2510 , AMC1303E2520 , AMC1303M0510 , AMC1303M0520 , AMC1303M2510 , AMC1303M2520
PRODUCTION DATA
Do not leave the inputs of the AMC1303 unconnected (floating) when the device is powered up. If both modulator inputs are left floating, the input bias current drives these inputs to the output common-mode voltage of the differential amplifier of approximately 1.9V. If that voltage is above the specified input common-mode range, the gain of the differential amplifier diminishes and the modulator outputs a bitstream resembling a zero differential input voltage.