The AMC1411-Q1 is a precision, isolated amplifier with an output separated from the input circuitry by a capacitive isolation barrier that is highly resistant to magnetic interference. This barrier is certified to provide reinforced galvanic isolation of up to 7.5 kVRMS according to VDE V 0884-11 and UL1577 and supports a working voltage of up to 1600 VRMS.
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 high-impedance input of the AMC1411-Q1 is optimized for connection to high-impedance resistive dividers or other high-impedance voltage signal source. The excellent DC accuracy and low temperature drift support accurate, isolated voltage sensing in onboard chargers (OBC), DC/DC converters, traction inverters, or other applications that must operate at high common-mode voltages, high altitudes, or in environments with high pollution degrees.
The AMC1411-Q1 is offered in a stretched 8-pin SOIC package and is AEC-Q100 qualified for automotive applications and supports the temperature range from –40°C to +125°C.
| Device type | Voltage sensing |
| Peak-to-peak input voltage range (V) | 2 |
| Isolation rating | Reinforced |
| Withstand isolation voltage (VISO) (Vrms) | 7500 |
| Working isolation voltage (VIOWM) (Vrms) | 1600 |
| Transient isolation voltage (VIOTM) (VPK) | 10600 |
| CMTI (min) (kV/µs) | 100 |
| Creepage (min) (mm) | 15.7 |
| Clearance (min) (mm) | 15.7 |
| Input offset (±) (max) (V) | 0.0015 |
| Input offset drift (±) (typ) (V/°C) | 0.000003 |
| Rating | Automotive |
| Operating temperature range (°C) | -40 to 125 |
| TI functional safety category | Functional Safety-Capable |
| SOIC (DWL) | 8 | 106.24 mm² 6.4 x 16.6 |