Quad op-amp for multi-channel sensor and signal conditioning
The OP491GSZ: The four independent amplifiers share a common supply range from 2.7 V to 12 V.
The entire quad draws 260 µA of supply current.
The output current capability of 16 mA per channel is enough to drive the reference input of a successive-approximation ADC or a small-signal relay coil through a transistor buffer.
For new designs, the quad-channel count and 2.7 V minimum supply make it a straightforward fit across multi-rail industrial and automotive PCBs.