MAX4311ESD

The MAX4311ESD is a low-voltage, low-power, single-channel, variable-gain amplifier (VGA)that delivers a full-scale output voltage of up to 6Vrms. The device’s gain is adjustable over a range of 1V/V to 1000V/V at a maximum gain-bandwidth product of 1.25GHz. The MAX4311ESD is designed to provide pre-amplification and video distribution amplification in video signal chains in consumer-electronics, and medical applications addressing consumer video gaming and professional medical imaging. Additionally, the device’s extended common-mode input range, rail-to-rail output stage and power-supply voltage range of 5V to 18V make it suitable for use in a wide variety of applications.

The MAX4311ESD is available in a space-saving, leadless, thermally enhanced, 8-pin microSMD package that extends its applicability to densely-packed, high-precision systems. The device also features a linear on-chip step variable gain control with a gain slope of 54.6 dB/V and a total control voltage range of 4V. The device operates over a temperature range of -40 °C to 85 °C and includes a power-down mode for applications requiring variable power consumption and quick shut down.

The device employs an internal, low-noise, programmable amplifier that provides a gain range of -2dB to +30dB and a total gain control of 40 dB. The amplifier also offers an average noise figure of 9dB at maximum gain, which improves overall system dynamic range significantly. Additionally, the device has an internal ESD-protection feature that extends the level of protection and enhances the overall performance of the device.

The MAX4311ESD has an input impedance of 5 KΩ, which minimizes the power charging of previous stages and allows for direct connection to the signal source. Additionally, the device features a low input bias of 6V max, which makes it compatible with most existing systems. The device also features a low modulation-bandwidth dependent of 0.5dB, which allows it to provide a wide range of input signals and dynamic range.

In conclusion, the MAX4311ESD is a low-voltage, low-power, single-channel, variable-gain amplifier with an extended control range, linear on-chip step gain control with a gain slope of 54.6 dB/V, an average noise figure of 9dB at maximum gain, internal ESD protection, an input impedance of 5 KΩ and a low input bias of 6V max. Offered in a space-saving, leadless, thermally enhanced, 8-pin microSMD package, the device is designed to provide pre-amplification and video distribution amplification in a wide variety of applications.