Using two CA3450 op amps and a CA3227 transistor array, this circuit will accurately full-wave rectify sign
als to 10 MHz. Two of the CA3227 transistors drive the output, two are in the feedback circuits. Two transistors serve as clamping diodes, limit the negative-going signals of each amplifier, and keep both amplifiers active during the end cycle. The maximum output is determined by the slew rate of 300 V//xs at highest frequencies.