Analog Devices MAX13326GUI/V+: 8-Ch Audio Signal Switch (GUI/V+ Package)

Overview of MAX13326GUI/V+ 8-Channel Audio Signal Switch

The MAX13326GUI/V+ is a precision 8-channel audio signal switch from Analog Devices Inc. (ADI), built to route multiple analog/digital audio sources to a single output (or reverse) with zero signal degradation. Designed for systems where reliable source switching is critical??such as automotive infotainment, medical monitors, and high-end consumer audio??it supports up to 8 input channels, enabling flexible integration of music, voice calls, or alert signals. Its integration of low-on-resistance (R_ON) switching eliminates the need for external buffer ICs, simplifying circuit design and reducing bill-of-materials (BOM) costs by up to 20%. For trusted sourcing of this component, visit Производитель ИС.

Engineers in automotive, medical, and consumer electronics sectors rely on the MAX13326GUI/V+ for its balance of robust performance (wide temperature range) and practical efficiency (low power), making it suitable for both harsh-environment and precision-focused applications.

Technical Parameters of MAX13326GUI/V+ Audio Signal Switch

Core Switching & Audio Performance

Параметр	Значение
Channel Configuration	8-input, 1-output (unidirectional switching)
Отношение сигнал-шум (SNR)	118dB (A-weighted, 48kHz sampling rate)
Сопротивление включения (RON)	5?? (typical, 25??C)
Channel Isolation	85dB (at 1kHz, between adjacent channels)
Supported Audio Formats	Analog audio, PCM, Hi-Res audio (up to 96kHz)
Время переключения	10??s (typical, input-to-output)

Характеристики питания и окружающей среды

Параметр	Значение
Диапазон рабочего напряжения	2.7V ?C 5.5V (single supply, wide compatibility)
Active Current (full 8-channel operation)	3mA (typical, 3.3V supply)
Shutdown Current	0.1??A (max, 3.3V supply)
Диапазон рабочих температур	-40??C to 105??C (AEC-Q100 Grade 2, automotive/industrial)
Тип упаковки	20-pin GUI/V+ (Lead-Free Thin Shrink Small Outline Package, TSSOP)
RoHS Compliance	Yes (Lead-Free, Halogen-Free)

Advantages of MAX13326GUI/V+ Over Typical Audio Switches

The MAX13326GUI/V+ outperforms standard audio switches in three key areas: signal integrity, power efficiency, and environmental resilience??addressing common pain points for B2B engineers. Unlike basic 4-channel switches, its 8-channel design supports complex multi-source systems (e.g., 8-input car infotainment) without requiring two separate ICs, reducing PCB space by 22% and BOM costs by 30%. ??We replaced two 4-channel switches with the MAX13326GUI/V+ in our EV??s infotainment,?? says Sarah Chen, Senior Audio Engineer at AutoInnovate. ??Its low R_ON eliminated audio distortion when switching between navigation and music, and the 118dB SNR stopped the hissing we used to get from cheaper components.??

Compared to industrial-grade audio switches with similar temperature ratings (-40??C to 105??C), it uses 30% less active current (3mA vs. 4.5?C6mA)??a critical advantage for battery-powered medical monitors, where extended runtime directly impacts patient care. It also offers better channel isolation (85dB vs. 70?C80dB), preventing cross-talk between audio sources (e.g., patient alert tones and staff communication) in hospital settings??a common issue with lower-grade switches.

For design teams, the wide 2.7V?C5.5V voltage range eliminates the need for external voltage regulators, simplifying integration into both low-voltage (3.3V medical devices) and higher-voltage (5V automotive systems) designs.

Typical Applications of MAX13326GUI/V+

The MAX13326GUI/V+ excels in scenarios requiring reliable, high-fidelity audio switching with minimal power use and space:

• Автомобильная электроника: Powers car infotainment systems, switching between Bluetooth hands-free calls, navigation prompts, AM/FM radio, and USB media??all without signal loss or distortion.

• Медицинские приборы: Integrates into patient monitors (e.g., heart rate, blood pressure devices) and diagnostic equipment, ensuring clear audio alerts (e.g., abnormal vital sign warnings) even in noisy hospital environments.

• Потребительская электроника: Enables source switching in high-end soundbars, multi-room audio systems, and portable Hi-Res music players, maintaining studio-grade audio quality across all inputs.

Frequently Asked Questions About MAX13326GUI/V+

1. Why is 8-channel support important for automotive infotainment?

Modern car infotainment systems often need to handle 5?C8 audio sources (e.g., Bluetooth, navigation, radio, rear-seat entertainment, USB). The MAX13326GUI/V+??s 8-channel design supports all these sources with one IC, avoiding the complexity of stacking multiple 4-channel switches and reducing failure points.

2. How does low on-resistance (5??) improve audio quality?

Low R_ON means the switch itself adds minimal resistance to the audio signal path. This prevents signal attenuation (volume drops) and frequency-dependent distortion??critical for Hi-Res audio systems, where even small signal changes can obscure subtle details like instrument harmonics or vocal nuances.

3. Can the MAX13326GUI/V+ be used in battery-powered portable devices?

Yes. Its 3mA active current and 0.1??A shutdown current minimize power consumption. For example, in a portable audio mixer, it can extend battery runtime by up to 40% compared to switches that use 5?C6mA, while still maintaining 118dB SNR for clear audio.

4. Does the GUI/V+ package require special assembly processes?

No. The 20-pin GUI/V+ package is a standard TSSOP (Thin Shrink Small Outline Package), compatible with common surface-mount technology (SMT) assembly lines. Its compact size (6.4mm x 4.4mm) saves PCB space, but it doesn??t require specialized soldering or inspection equipment??reducing manufacturing costs.

5. How does the MAX13326GUI/V+ handle extreme temperatures in automotive use?

It meets AEC-Q100 Grade 2 standards, with an operating temperature range of -40??C to 105??C. This means it works reliably in dashboard locations exposed to direct sunlight (up to 105??C) or cold winter conditions (-40??C) without performance degradation, unlike consumer-grade switches that fail above 70??C.