The NJM2043 specs are the same as the LM1458 / LM4558 exept for housing (= SIP).
They are high speed J–FET inputsingle operationalamplifiers incorporating well matched, high voltage J–FET, Low Noise and bipolar transistors in a monolithic integrated circuit.
The devicesfeaturehigh slew rates, low input bias and offset currents, and low offset voltage temperature coefficient
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