BUY SP8660 https://www.utsource.net/itm/p/1374041.html
150MHz±10 Low Power ECL Counter
The SP8660 is an 8-pin DIP (dual in-line package) integrated circuit (IC) manufactured by Plessey. It is a monolithic integrated circuit designed for use as a low-power, low-voltage, high-performance, low-cost, single-supply operational amplifier. Features: * Low-power, low-voltage operation * High-performance * Low-cost * Single-supply operation * Low input offset voltage * Low input bias current * Low input offset current * Low input capacitance * High open-loop gain * High slew rate Applications: * Audio preamplifiers * Active filters * Instrumentation amplifiers * Voltage followers * Differential amplifiers * Signal conditioning * Voltage regulators * Power supplies * Motor control circuits (For reference only)