Differential Amplifier, MiniPCB, 04B-359, Rev A1-03

by miniPCB in Circuits > Electronics

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Differential Amplifier, MiniPCB, 04B-359, Rev A1-03

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I made a differential amplifier with a gain of approximately 45!

The circuit is highly similar to the 04B-358 differential amplifier.

The second output doesn't work. Apparently this circuit is a differential-ended input, and single-ended output.

Collect Components

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The PCB is a two layer board, and designed to be easy to manufacture and assemble. And it is optimized for cost by being panelized on 100 x 100 mm squares.

Signals are routed on the bottom layer (the layer with the part number), and a common ground plane (as uncut as possible) is on the top layer.

The P1 connector is located in a standard position with respect to the board edges: making it possible to build a universal tester, backplane, or stand.

Solder Components

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For ease, start with the shortest components.

If a potentiometer is installed with pin 1 in the wrong place, the adjustment procedure will be inverted (CW/CCW).

Test With Digilent's Analog Discovery 2/3

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For ease of changing between boards, use Interface Board, 00A-12.