Other Parts Discussed in Thread: TLV9152
What are the main differences between OPA2991 and TLV9152?
Is TLV9152 just a 16V version of OPA2991?
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the maximum supply voltage of OPA2991 is 40V and a special protection circuit against too high differential input voltages is used:
The TLV9152, on the other hand, has a maximum supply voltage of "only" 16V and can withstand a differential input voltage of 16V without the need of this special protection circuit.
The difference can also be seen from the differential input capacitances: The TLV9152 shows a differential input capacitance of 3pF, while the more complex circuit of OPA2991 results in a differential input capacitance of 9pF.