MAX9813HEKA+T

The MAX9813HEKA+T is a low cost, dual input, fixed gain microphone amplifier with integrated bias in 8 pin SOT-23 package. It has low noise, integrated microphone bias and tiny packaging making it ideal for portable audio applications such as notebook computers, cell phones, digital cameras, video tape recorders and PDAs. This amplifier features a 500KHz bandwidth, rail to rail outputs, an industry leading 100dB power supply rejection ratio and a very low 0.015% THD+N. The device includes very low 230µA supply current and a total shutdown mode that cuts the combined supply and BIAS currents to only 100nA. The MAX9813 has two inputs allowing two microphones to be multiplexed to a single output.

• Supply voltage range is 4.5V to 5.5V
• Operating temperature range from -40°C to 85°C
• PC2001 compliant and optimized for 5V operation
• Fixed gain of 20dB
• Amplifier output bias voltage is 2.5V
• Output slew rate is 1V/μs
• Gain is set at 10V/V (20dB) with a 400KHz of -3dB bandwidth
• 4.0V internal low noise microphone bias supply, 12mA output short circuit current
• 50pF output capacitive load stability

Applications

Audio, Portable Devices, Signal Processing

Warnings

Market demand for this product has caused an extension in leadtimes. Delivery dates may fluctuate. Product exempt from discounts.

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party