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Texas Instruments JFE2140EVM JFET Evaluation Module (EVM) provides an essential functional evaluation of the JFE2140 device. The JFE2140 is a dual ultra-low noise low gate current audio N-channel JFET. The Texas Instruments JFE2140EVM is in a closed-loop preamplifier configuration providing 60dB of gain on a split ±5V supply. User modifications can be made for a variety of circuit configurations.