The LM318 is a precision, high speed, high gain operational amplifier that has been specifically designed for use in high slew rate and wide bandwidth applications. Unlike many wideband amplifiers, the LM318 is unity-gain stable since it has internal circuitry for frequency compensation. However, external components may be added for compensation to achieve optimum performance. When used in inverting applications, feed-forward compensation can be used to achieve slew rate in excess of 150V/µs and almost double the bandwidth. For greater stability, using overcompensation with the amplifier is possible if maximum bandwidth is not needed. In general, by adding a single capacitor can reduce the settling time for 0.1% error band to under 1µs. The typical applications of UTC LM318 include A/D converters, fast integrator, oscillators, active filters, sample and hold circuits, or general purpose amplifiers.
The LM318 is a precision, high‑speed operational amplifier designed for high slew‑rate and wide‑bandwidth applications. It is unity‑gain stable thanks to internal frequency compensation, and external components can be added for further performance tuning.
Key electrical characteristics include a 45 MHz small‑signal bandwidth, 50 V/µs slew rate, ±20 V supply range, 250 nA maximum input bias current, and a 500 mW power dissipation rating. Ordering information and package options (DIP‑8, SOP‑8, tape or tube) are also provided.
| Bandwidth (small‑signal) | 45 MHz |
|---|---|
| Slew Rate | 50 V/µs |
| Supply Voltage Range | ±20 V |
| Input Offset Voltage (typical) | 15 mV |
| Input Bias Current (max) | 250 nA |
| Power Dissipation | 500 mW |
The LM318 has a typical slew rate of 50 V/µs.
The LM318 provides a small‑signal bandwidth of 45 MHz.
Yes, the LM318 is unity‑gain stable due to internal frequency compensation.
The device can operate with supply voltages from –20 V to +20 V.