Instrumentation amplifiers can be built with individual op-amps and precision resistors, but are also available in integrated circuit form from several manufacturers (including Texas Instruments, National Semiconductor, Analog Devices, Linear Technology and Maxim Integrated Products).
Несколько производителей (Texas Instruments, National Semiconductor, Analog Devices, Linear Technology и Maxim Integrated Products) выпускают интегральные схемы с инструментальным усилителем с лазерной подгонкой резисторов.