In this case, the op amp’s output (pin 1) goes high and switches transistor T1 on. As a result, the low-frequency astable multivibrator, wired using the NE555 timer (IC2), is disabled (Fig. 2).

With a low input voltage noise of 12nV/√Hz, the TSB712A can handle low signal amplitudes and ensure high resolution. In addition, the input offset voltage of 300µV simplifies circuit design for ...