Package and mounting
It delivers a 100 MHz gain-bandwidth product and a 90 V/µs slew rate, drawing 7 mA of supply current. The supply span is fixed at 8 V (both minimum and maximum), so it runs from a single 8 V rail or a symmetric ±4 V split supply.
The 90 V/µs slew rate means this op-amp can swing a 10 V peak-to-peak output in about 110 ns, which is fast enough for pulse amplification, video distribution, or high-speed data acquisition front ends. The 100 MHz gain-bandwidth product supports closed-loop gains up to 10 at 10 MHz before the open-loop rolloff dominates. For a repair bench, that combination makes the MAX408CPA a good candidate for replacing a blown fast op-amp in an older design where the scorch mark tells you the original part is gone and you need a known-good through-hole swap.
Supply rail and input offset — the gotchas
The supply span is exactly 8 V, not a range — both the minimum and maximum are 8 V. That means you cannot run it from a 5 V or 12 V rail without a regulator or divider. Those are moderate numbers; for precision DC applications below 1 mV error, you would look at a chopper-stabilized or auto-zero amplifier. The 650 nA bias also matters if your source impedance is high — expect a voltage drop across the feedback network.
Package and mounting — through-hole reality
The MAX408CPA comes in an 8-DIP (0.300", 7.62mm) body with through-hole leads (not tape-and-reel). The supplier device package is 8-PDIP. This footprint is breadboard-friendly and easy to hand-solder, but it takes up more board area than a surface-mount SOIC-8. For new designs where board space is tight, a surface-mount sibling would be the natural alternative. On a repair bench, the DIP package is a plus — you can socket it and swap without reflow.
Lifecycle and compliance
The RoHS compliance status is listed as non-compliant, so verify your assembly line's lead-free requirements before ordering. If you need a RoHS-compliant version, check the MAX408CPA+ (lead-free) variant or a surface-mount equivalent in the same family.
