Rainbow Electronics MAX9945 - Manual (Page 9)

Input Differential Voltage Protection
During normal op-amp operation, the inverting and non-
inverting inputs of the MAX9945 are at approximately
the same voltage. The ±12V absolute maximum input
differential voltage rating offers sufficient protection for
most applications. If there is a possibility of exceeding
the input differential voltage specification, in the pres-
ence of extremely fast input voltage transients or due to
certain application-specific fault conditions, use exter-
nal low-leakage pico-amp diodes and series resistors
to protect the input stage of the amplifier (see Figure 2).
The extremely low input bias current of the MAX9945
allows a wide range of input series resistors to be used.
If low input voltage noise is critical to the application,
size the input series resistors appropriately.
MAX9945
38V, Low-Noise, MOS-Input,
Low-Power Op Amp
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Chip Information
PROCESS: BiCMOS