The LPC661 is a low power CMOS operational amplifier from National Semiconductor Corporation. It uses National Semiconductor Corporation's advanced Double-Poly Silicon-Gate CMOS process. This device has a wide supply voltage range (+5V to +15V), output swing up to the supply voltage range and can provide ground level output in the input common-mode range. The performance parameters of this device are better than most bipolar operational amplifiers, with a supply current of only 55μA.
The LPC661 CMOS operational amplifier is designed for single‑supply operation from +5 V to +15 V, offering rail‑to‑rail output swing and an input common‑mode range that includes ground. It provides performance comparable to bipolar op‑amps while consuming only about 55 pA of supply current.
The device includes features such as low input offset voltage (3 mV), ultra‑low input bias current (20 pA), high voltage gain (120 dB), and a slew rate of 0.11 V/µs. Detailed electrical characteristics, application hints, and layout recommendations are provided for high‑impedance and low‑leakage designs.
| Supply Voltage Range | +5 V to +15 V |
|---|---|
| Slew Rate | 0.11 V/µs |
| Gain‑Bandwidth Product | 350 kHz |
The LPC661 operates from a single supply voltage of +5 V to +15 V.
The device typically draws only 55 pA of supply current.
The LPC661 has a slew rate of 0.11 V/µs.