MAX4852HETE+ Dual SPDT Analog Switch | Analog Devices
MPN: MAX4852HETE+ ✓ فعالMAX4852HETE+ نمای کلی
An analog switch is a semiconductor-controlled routing component that connects or disconnects signal paths under digital control. A dual SPDT device extends this category by combining two SPDT channels in a single package. The MAX4852 belongs to the broader analog-switch and multiplexer hierarchy, where it sits between passive mechanical switching and more complex multiplexed signal-acquisition systems.
Key features include two SPDT analog switches, over-rail signal handling, 16 terminals, and an exposed-pad TQFN package identified by package code HVQCCN. The square surface-mount package supports compact PCB layouts, while the exposed pad provides a thermal and ground connection when the manufacturer land pattern is followed. Analog Devices identifies the MAX4852 as being in production.
The MAX4852 combines two separately controlled routing sections in one IC rather than requiring two discrete single-switch packages. Each SPDT section can direct a common signal toward one of two outputs, making the device useful for source selection, polarity routing, measurement-path switching, and signal-path isolation. Over-rail signal handling identifies the intended capability for signals extending beyond the nominal supply range, subject to the operating limits and absolute maximum ratings in the manufacturer datasheet.
Typical applications include automated test equipment, data-acquisition modules, instrumentation, communication equipment, and embedded control systems where analog signals must be routed under software control. Integrating both SPDT channels into one package can simplify routing logic and reduce the number of separate switch components, although each board must still provide proper grounding, signal conditioning, and protection appropriate to its external interfaces.
Designers should follow the TQFN exposed-pad land pattern and connect the pad as directed in the manufacturer datasheet. Keep sensitive analog traces away from high-current switching paths, provide a low-impedance ground reference, and verify absolute maximum voltage and current limits against the exact operating conditions. The dual architecture is useful only when both switch sections can use the same supply and ground arrangement.
This page consolidates the verified MAX4852 device identity, package details, lifecycle information, application guidance, comparison criteria, and sourcing workflow into one engineering-focused reference. Use the Request a Quote form for current availability, lead time, and commercial terms.
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درخواست جایگزینMAX4852HETE+ حداکثر مقادیر مجاز و مشخصات الکتریکی
| Product Type | Dual SPDT analog switch |
| Switch Configuration | SPDT |
| Number of Switches | 2 |
| Signal Handling Feature | Over-rail signal handling |
| Number of Terminals | 16 |
| Package Type | 16-terminal TQFN with exposed pad |
| Package Code | HVQCCN |
| Package Shape | Square |
| نوع نصب | Surface mount |
| Temperature Grade | Industrial |
| وضعیت چرخه عمر | Production |
| Manufacturer Document Revision | Rev. 0 |
| Datasheet Length | 16 pages |
| Datasheet File Size | 636 Kbytes |
راهنمای پیکربندی پین MAX4852HETE+ square
پیکربندی پین برای MAX4852HETE+ (پکیج square). این IC دیجیتال شامل GPIO، رابط‌های ارتباطی (UART، SPI، I2C) و پین‌های تغذیه است. برای عملکردهای جایگزین پین و گزینه‌های پیکربندی به دیتاشیت سازنده مراجعه کنید. ضروری برای طراحی سیستم‌های نهفته و چیدمان PCB.
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کاربردهای معمول
MAX4852HETE+ مناسب است برای 6 کاربردs: Automated Test Equipment Signal Routing, Data Acquisition Multiplexing, Instrumentation Signal Isolation, Communication Interface Signal Routing, Industrial Control Module, Embedded Measurement and Control.
Automated Test Equipment Signal Routing
The MAX4852HETE+ fits automated test equipment that must route two analog signals between shared measurement resources. Its 2 integrated SPDT sections provide independent routing paths in one 16-terminal TQFN package, reducing the number of separate switch components compared with a dual-single-switch arrangement. The IC is controlled digitally by the test instrument, allowing repeatable selection of measurement paths without mechanical contact wear. Because the device is rated for over-rail signal handling and an industrial temperature grade, it can support compact instrumentation when the external signal amplitude remains within the datasheet limits.
Data Acquisition Multiplexing
The MAX4852HETE+ can serve as a local analog multiplexer in a data-acquisition module where multiple sensor or reference paths must be selected under software control. Each SPDT section can connect a common measurement node to one of two possible sources, while combining both functions in one surface-mount package. This arrangement is useful when the controller must alternate between two measurement inputs without adding a second switch package. Signal conditioning, grounding, and protection should remain external to the IC, and the selected amplitude and bandwidth must satisfy the MAX4852 electrical characteristics.
Instrumentation Signal Isolation
The MAX4852HETE+ is suitable for instrumentation designs that need to isolate a sensitive measurement path from an external source by disconnecting one of two possible connections. Its over-rail signal handling is particularly relevant when the incoming analog level may extend beyond the nominal supply range, provided the manufacturer operating and absolute maximum limits are respected. The 2 SPDT sections can perform complementary isolation or selection functions in one 16-terminal TQFN device. A low-impedance ground and careful exposed-pad connection are essential for predictable analog behavior.
Communication Interface Signal Routing
The MAX4852HETE+ can route analog or communication-related signals in interface equipment that requires electronic selection between two paths. The dual SPDT architecture gives the controller two independently actuated switching sections, and the compact surface-mount package supports high-density interface boards. Over-rail signal handling adds flexibility when a selected line may operate outside the nominal supply range, but every external node must remain below the documented absolute maximum ratings. Designers should also account for on resistance, bandwidth, leakage, and switching transients when selecting external termination and protection components.
Industrial Control Module
The MAX4852HETE+ fits industrial control modules that use programmable analog paths for sensor selection, reference routing, or output isolation. Its industrial temperature grade and production status support designs intended for sustained industrial use, while the 2 SPDT channels consolidate two routing functions into one 16-terminal TQFN package. The device should be mounted using the manufacturer land pattern, and its exposed pad must be connected as directed to preserve electrical and thermal performance. Control firmware should allow the switching interval to meet the timing requirements of the external signal source.
Embedded Measurement and Control
The MAX4852HETE+ can support embedded measurement and control systems that need software-controlled analog routing between sensors, references, and actuator feedback paths. Combining 2 SPDT switches in one surface-mount IC can simplify board partitioning and reduce component count when both paths have compatible electrical requirements. The over-rail signal-handling feature is useful around nominal supply boundaries, although designers must enforce the documented voltage and current limits. Firmware should provide controlled settling time before taking measurements, and the PCB should preserve a compact return path for both analog ground and the exposed pad.
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راهنمای انتخاب
مقایسه با جایگزین‌ها
| پارامتر | این محصول |
|---|---|
| Switch Type | Dual SPDT analog switch |
| Integrated Switch Count | 2 |
| Signal Handling | Over-rail signal handling |
| Package | 16-terminal TQFN with exposed pad |
| Package Code | HVQCCN |
| Number of Terminals | 16 |
| Mounting Type | Surface mount |
| Temperature Grade | Industrial |
تفاوت‌های کلیدی
- Two integrated SPDT routing sections (در مقابلSingle SPDT analog switch)
- Over-rail signal handling (در مقابلConventional non-over-rail analog switch)
- Compact exposed-pad implementation (در مقابلDiscrete mechanical switch implementation)
یادداشت‌های طراحی
Follow the Analog Devices MAX4852 recommended land pattern for the 16-terminal TQFN package with exposed pad. Keep the exposed-pad connection short and low impedance, and use a continuous ground plane where the package design permits it. Place signal traces away from pad edges and maintain adequate spacing between adjacent switch nets to reduce capacitive coupling during switching.
Reserve settling time after changing the control state before capturing a measurement from the selected analog path. The delay should account for the switching time specified in the manufacturer datasheet and the settling behavior of downstream filters. Short traces, a continuous return path, and physical separation from digital control signals help preserve the integrity of low-level measurements.
Do not interpret over-rail signal handling as permission to exceed the absolute maximum ratings. Confirm the allowable voltage on every switched terminal, including off-state pins, and verify that the external signal amplitude, supply configuration, temperature, and current remain within the MAX4852 datasheet limits. Add external protection where transients or persistent overvoltage are possible.
Decouple the device supply with the capacitance and placement specified by Analog Devices. Because two switched analog paths share one IC, supply disturbance from both sections can affect the same reference node. Provide a low-impedance ground return and avoid routing high-current return paths through the analog-switch area to minimize coupling into the selected signal path.
اطلاعات انطباق
The reviewed device pages do not provide explicit RoHS, REACH, lead-free, halogen-free, or conflict-minerals declarations. The device is an industrial-grade analog switch and is not presented as an AEC-Q100-qualified automotive part.
