SM73306 Datasheet, PDF (15/22 Pages) Texas Instruments – SM73306 CMOS Rail-to-Rail Input and Output Operational Amplifier

Stability vs
Capacitive Load
Stability vs
Capacitive Load
Stability vs
Capacitive Load
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Stability vs
Capacitive Load
30159574
Application Hints
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INPUT COMMON-MODE VOLTAGE RANGE
Unlike Bi-FET amplifier designs, the SM73306 does not ex-
hibit phase inversion when an input voltage exceeds the
negative supply voltage. Figure 1 shows an input voltage ex-
ceeding both supplies with no resulting phase inversion on
the output.
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The absolute maximum input voltage is 300 mV beyond either
supply rail at room temperature. Voltages greatly exceeding
this absolute maximum rating, as in Figure 2, can cause ex-
cessive current to flow in or out of the input pins possibly
affecting reliability.
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FIGURE 1. An Input Voltage Signal Exceeds the
SM73306 Power Supply Voltages with
No Output Phase Inversion
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FIGURE 2. A ±7.5V Input Signal Greatly
Exceeds the 5V Supply in Figure 3 Causing
No Phase Inversion Due to R_I
Applications that exceed this rating must externally limit the
maximum input current to ±5 mA with an input resistor (R_I) as
shown in Figure 3.
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