These devices consist of two independent, high-gain, frequency-compensated operational amplifiers designed to operate from a single supply over a wide range of voltages. Operation from split supplies also is possible if the difference between the two supplies is 3 V to 32 V, and VCC is at least 1.5 V more positive than the input common-mode voltage. The low supply-current drain is independent of the magnitude of the supply voltage.

• Wide supply voltage ranges
• Low supply-current drain independent of supply voltage
• Common-mode input voltage range includes ground, allowing direct sensing near ground
• Low input bias and offset parameters
• Internal frequency compensation

The LM386N-1/NOPB is a Wide Vin Class-D low Power Audio Amplifier with internal gain designed for use in low voltage consumer applications. The gain is internally set to 20 to keep external part count low, but the addition of an external resistor and capacitor between pins 1 and 8 will increase the gain to any value from 20 to 200. The inputs are ground referenced while the output automatically biases to one-half the supply voltage. The quiescent power drain is only 24mW when operating from a 6V supply, making the LM386 ideal for battery operation.

• Battery operation
• Minimum external parts
• Low quiescent current drain
• Ground referenced input
• Self-centering output quiescent voltage
• Green product and no Sb/Br