AMC1311BQDWVRQ1 Description


The AMC1311-Q1 is a precision isolation amplifier whose output and input circuits are separated by an isolation barrier with high anti-magnetic interference. According to VDE V 0884-11 and UL1577, the fence is certified to provide enhanced current isolation of up to 7 kVPEAK. This isolation amplifier, used in conjunction with the isolation power supply, separates system components operating at different common-mode voltage levels and protects lower voltage components from damage. The high impedance input of the AMC1311-Q1 is optimized to connect to a high voltage resistive distributor or other voltage signal source with high output resistance. The excellent performance of the device supports accurate low-temperature drift voltage or temperature sensing and control in closed-loop systems. Integrated high-end power supply voltage loss detection simplifies system-level design and diagnosis. AMC1311-Q1 provides two performance level options: AMC1311-Q1 and AMC1311B-Q1.


AMC1311BQDWVRQ1 Applications

? Isolated voltage sensing in: – Traction inverters – Onboard chargers – DC/DC converters

AMC1311BQDWVRQ1 Features

? AEC-Q100 qualified for automotive applications: – Temperature grade 1: –40°C to +125°C, TA
? 2-V, high-impedance input voltage range optimized for isolated voltage measurement
? Low offset error and drift: – AMC1311B-Q1: ±1.5 mV (max), ±10 μV/°C (max) – AMC1311-Q1: ±9.9 mV (max), ±20 μV/°C (typ)
? Fixed gain: 1 ? Very low gain error and drift: – AMC1311B-Q1: ±0.2% (max), ±40 ppm/°C (max) – AMC1311-Q1: ±1% (max), ±30 ppm/°C (typ) ? Low nonlinearity and drift: 0.01%, 1 ppm/°C (typ)
? 3.3-V operation on high-side (AMC1311B-Q1)
? Missing high-side supply indication
? Safety-related certifications: – 7000-VPK reinforced isolation per DIN VDE V 0884-11: 2017-01 – 5000-VRMS isolation for 1 minute per UL1577 – CAN/CSA no. 5A-component acceptance service notice