LMC6442 is a low-power, single-supply, dual operational amplifier from TI with a supply voltage range of 2.2V to 10V and a typical operating current of less than 1μA, making it ideal for applications such as smoke and gas detectors, pagers, and personal communication systems.
The LMC6442 is a dual operational amplifier designed specifically for battery-powered systems requiring very low supply current (less than one microamp per amplifier) and rail-to-rail output swing. It operates from 2.2V to 10V, making it ideal for single lithium-ion or two-cell NiCad/alkaline battery systems used in smoke detectors, pagers, and personal communications devices.
The device features a wide common-mode input voltage range that includes ground, allowing for ground sensing applications. It is characterized by low supply current, high voltage gain, and stability for closed-loop gains greater than plus two or minus one. The LMC6442 is available in MSOP, DIP, and SOIC packages.
| Supply Voltage Range | 2.2V to 10V |
|---|---|
| Input Bias Current (Typical) | < 1 µA per amplifier |
| Gain Bandwidth Product | 9.5 KHz (at 2.2V) |
| Output Swing to Rail | within 30 mV of supply rail |
| Input Offset Voltage (Typical) | 0.75 mV |
| Supply Current (2 amplifiers, typical) | 1.9 µA at 2.2V |
The typical supply current is less than one microamp per amplifier.
It is designed for closed loop gains of greater than plus two or minus one.