2 layers42.6 × 47.4 mm

Current sensor
pointertoaperson/current_sensor
read full report # Rogowski Coil–Based Current Sensor with Edge Connectivity
19 parts
Boards in 1 GitHub repository, designed in KiCad, that use the OPA4277PA by Texas Instruments (-40℃~+85℃ 0.8V/us 1MHz 35mA 4nA Built-in compensation、Reverse-phase input protection Four channels PDIP-14 Precision Op Amps ROHS). See how each wires it, with its parts, size, README and files; the OPA4277PA’s symbol, footprint and pinout are on its own page.

pointertoaperson/current_sensor
read full report # Rogowski Coil–Based Current Sensor with Edge Connectivity