MAX4466EXK+T

MAX4466EXK+T is Maxim’s evaluation kit for the MAX4466 low-noise microphone preamplifier. It provides a ready-to-test board to evaluate the device in single-supply mic-pre applications. The kit includes the MAX4466 on a compact PCB with a mic-bias network, input/output coupling, gain-setting components, and connectors plus documentation. Key features: ultra-low input noise, single-supply operation (about 2.7–5.5 V), adjustable gain via the external feedback network, and rail-to-rail output suitable for direct ADC or line-coupled use. Typical applications: handheld recorders, headsets, speech interfaces, and portable audio devices. How to use: connect a microphone to the input, supply power, and route the output to an ADC or line-in; adjust gain by changing the external resistor values. Benefits: fast, repeatable evaluation of noise, gain, and headroom before integrating the MAX4466 into a design.

Key features of the MAX4466EXK+T (microphone preamplifier):
- Ultra-low-noise mic preamp optimized for electret/microphone capsules
- Single-supply operation: typically 2.7V–5.5V
- Programmable gain via external resistors (roughly 20–60 dB range)
- Internal bias source for electret microphones
- Rail-to-rail input and output
- High input impedance with low distortion
- Small footprint package; suitable for compact boards
- Evaluation kit (EXK) for quick testing and integration
Note: exact gain range and supply limits are in the datasheet; consult for precise values and recommended external components.

- Pin count: 8 pins (MSOP‑8/SO‑8 package).
- Function: Mono electret microphone preamplifier with built‑in bias for single‑supply operation; amplifies a mic signal and provides bias/reference/bypass options and potential gain control. Typical pins include V+, GND, MIC input, OUTPUT, REF/BYP, MICBIAS, SHDN/GAIN, and NC as per the datasheet.

- Manufacturer: Maxim Integrated (now part of Analog Devices)
- What kind of company: An American fabless semiconductor company that designs and markets analog and mixed-signal integrated circuits.

MAX4466EXK+T is a low-noise, single-supply microphone preamplifier. Common applications include:
- Electret/MEMS microphone front-end in portable devices
- Smartphones, tablets, laptops, cameras, USB/webcams, Bluetooth headsets
- Voice recorders and dictation devices
- Conferencing systems, speakerphones, VOIP equipment
- Smart-home devices and voice assistants
- Security cameras and other audio-enabled sensors
- Any battery-powered consumer electronics requiring high-gain, low-noise mic amplification

8-pin MSOP package (MSOP-8). The “+T” indicates tape-and-reel packaging.