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MAXIM INTEGRATED / ANALOG DEVICES MAX9813HEKAT Microphone Amplifier

The MAX9813HEKAT is a dual-input, low-noise microphone amplifier designed for portable audio applications. It features a fixed gain of 20dB, integrated microphone bias, and rail-to-rail outputs, ensuring excellent audio fidelity. The device operates between 4.5V and 5.5V, with low supply current of 230μA, making it suitable for smartphones, digital cameras, and PDAs. Its small package (8-pin SOT23) and extended temperature range from -40°C to +85°C provide versatility for various design needs. It offers high PSRR, low THD+N, and fast switching for seamless input selection.

Authorized Distributors
Source:Newark
Part No:MAX9813HEKA+T
Stock:2556
Inv Date:06-05-2026
Price: Unit price: $2.08
Buy/RFQ:
Source:DigiKey
Part No:MAX9813HEKA+T
Stock:12904
Inv Date:06-05-2026
Price: Unit price: $2.02
Buy/RFQ:
Part No:MAX9813HEKA+T
Stock:2705
Inv Date:06-06-2026
Price: Unit price: $2.02
Buy/RFQ:

MAXIM INTEGRATED / ANALOG DEVICES MAX9813HEKAT Microphone Amplifier Specifications:

  • Input Impedance: 85kΩ
  • Gain: 20dB fixed
  • Bandwidth: 400kHz, -3dB
  • Supply Voltage Range: 4.5V to 5.5V
  • Supply Current: 230μA
  • Bias Output Voltage: 4V (H version)
  • Output Voltage Swing: Within 100mV of rails with 10kΩ load
  • THD+N: 0.015% at 22Hz to 22kHz
  • Total Noise: 29μV RMS
  • Package: 8-pin SOT23
  • Operating Temp Range: -40°C to +85°C
  • Power Supply Rejection Ratio: 100dB at 217Hz
  • Shutdown Mode: 100nA consumption
  • Input Noise Density: 40nV/Hz
  • Output Capacitance Load: Up to 50pF with no oscillations
  • Pin Control for Input Selection: IN1/IN2
  • Microphone Bias: 4V regulated output for ECMs

Buy the Maxim Series MAX9813 Dual-Input Microphone Amplifier: MAX9813HEKAT

Purchase the Maxim Series MAX9813HEKAT online today to enhance your portable audio systems. This dual-input, low-noise microphone amplifier features integrated bias, fixed 20dB gain, and rail-to-rail outputs. Its compact 8-pin SOT23 package, operating voltage of 4.5V to 5.5V, and low supply current of 230μA make it perfect for smartphones, digital cameras, and PDAs. With high PSRR, low THD+N, and fast input switching, this amplifier ensures excellent audio clarity and dependable performance in compact, portable devices.

Order your Maxim Series MAX9813HEKAT dual-input low-noise microphone amplifier today and equip your portable audio projects with high fidelity, integrated bias, and reliable operation.

Frequently Asked Questions

Where can I buy MAXIM INTEGRATED / ANALOG DEVICES MAX9813HEKAT?

You can click on the BUY or RFQ button to purchase MAX9813HEKAT from an authorized MAXIM INTEGRATED / ANALOG DEVICES distributor.

How do I troubleshoot issues or seek technical support for part MAX9813HEKAT?

You can download the MAX9813HEKAT datasheet or visit the MAXIM INTEGRATED / ANALOG DEVICES website for support.

Who is the manufacturer of MAX9813HEKAT?

MAXIM INTEGRATED / ANALOG DEVICES

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