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THS4521: THS4521 Schematics.

Part Number: THS4521


Team: I am helping a customer. Attached is the  circuit. THS4521 Differential input, Single Output using a single +5V power supply.

Vin at J7 and J9 is 0V ==> V@TP15 = 1.15V.

 1)       Should not it be 2.5V @ TP15 since this the VOCM voltage?

For Vin @ J7 and J9 = somevoltage, the output = [  {somevoltage / (R67+R68+R69+R70+R787+R79) x (R78+R79) x 3 } + VOCM ]

2)      If I were to ground PIN 2 (VOCM) the output will follow the input linearly without the added constant VOCM. Will grounding VOCM for the purpose of eliminating the VOCM offset degrade any of the performance of the THS4521?