Dual CMOS op-amp with precision DC and wide bandwidth
Each channel draws 1.3 mA supply current, and the output can source or sink 66 mA.
Package and mounting
The 17 MHz gain-bandwidth product supports closed-loop gains up to 100 with a usable bandwidth above 170 kHz, adequate for precision data-acquisition systems sampling at 100 kSPS or higher. The 10 µV maximum offset eliminates the need for external nulling in most applications; at a gain of 100, the output DC error is only 1 mV. The 0.1 pA bias current allows direct connection to high-impedance sources without a buffer — a photodiode with 10 MΩ source resistance produces less than 1 µV of offset error from bias current alone.
The rail-to-rail output stage swings within 50 mV of each rail at light loads, preserving dynamic range in low-voltage systems. Output current capability of 66 mA per channel can drive the analog input of a successive-approximation ADC directly, or a small relay coil through a series resistor.
It is suitable for both new design-ins and ongoing production. There is no official successor part — the LMP7712MM is the current offering in this precision dual op-amp line.