The chips 153UD1 are medium-precision operational amplifiers with an output voltage of ± 10 V. Designed primarily to operate at relatively low frequencies. To ensure a sufficiently high input resistance, the first differential stage operates in a small collector current mode, as a result of which parasitic and corrective capacitors limit the output voltage at a high frequency. The instability of work is eliminated by introducing external correction circuits. Contain 90 integral elements.