Hello,
we have a working design with TLV9351 acting as voltage follower.
Supply: single, Vcc=15V. The circuit input signal voltage ranges from -12V...+12V.
The input signal is connected to the IC input by a serial 100k resistor. At the IC input the negative signal part is cut off by a Schottky diode, as only the positive part is required.
The circuit works without problems, but it is now noticed that the IC negative common-mode voltage range is violated: Abs. max. rating: (V-) - 0.5V; recommended (V-) -0.1V.
At the IC input we have approx. -0.3V...-0.4V. Current through the diode is limited by the serial resistor to -0.12mA.
The IC has diode-clamped inputs to the supply rails. Datasheet states "Input signals that may swing more than 0.5 V beyond the supply rails must be
current limited to 10 mA or less."
Is device reliability affected, or can this operating mode considered as non-critical?
