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Analog Devices Inc./Maxim Integrated MAX4852HETE+
- Part No.:
- MAX4852HETE+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- -
- Datasheet:
-
MAX4852HETE+.pdf
- Description:
- DUAL SPDT ANALOG SWITCH WITH OVE
- Quantity:
- Payment:
- Shipping:
Inventory:832
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Product details
Overview
MAX4852HETE+ from Maxim Integrated is a dual SPDT analog switch optimized for over-rail signal routing in USB 2.0 full-speed (12Mbps) and audio applications. It operates from a single +2V to +5.5V supply, delivers 3.5Ω/7Ω on-resistance, supports 135MHz –3dB bandwidth, and features high-impedance input behavior when signals exceed VCC. It is used in cellular phone USB/audio multiplexing where rail-to-rail signal integrity and low leakage are critical.
For engineers reviewing the MAX4852HETE+ datasheet, MAX4852HETE+ pinout, MAX4852HETE+ application, or MAX4852HETE+ equivalent, key selection criteria include over-rail high-Z response, 1µA supply current, 0.1ns differential skew, 135MHz bandwidth, and TQFN-16 (3mm × 3mm) package compatibility with space-constrained portable designs.
Technical Context
The MAX4852HETE+ implements two independent SPDT switches with asymmetric on-resistance: 3.5Ω on one pole and 7Ω on the other-enabling optimized routing for differential pairs (e.g., USB D+/D–) and single-ended paths. Its over-rail handling operates in high-impedance mode above VCC, preventing signal distortion or latch-up during hot-plug events.
It uses CMOS process technology with 735 transistors and integrates no comparators-distinguishing it from MAX4850H/MAX4850 variants. Logic inputs are 1.8V-compatible and tolerate up to +5.5V regardless of VCC, supporting mixed-voltage system interfacing without level shifters.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | +2V to +5.5V - enables direct integration with Li-ion battery (3.0–4.2V), 3.3V, and 5V logic domains |
| On-Resistance | 3.5Ω / 7Ω - ensures minimal insertion loss for USB 2.0 full-speed (12Mbps) and audio signals |
| –3dB Bandwidth | 135MHz - supports clean switching of high-frequency data and wideband audio without attenuation |
| Supply Current | 10µA max at +85°C - enables always-on USB detection or audio path control in battery-powered devices |
| Differential Skew | 0.1ns typical - preserves USB D+/D– timing alignment to meet full-speed eye diagram requirements |
| Over-Rail Behavior | High-impedance input above VCC - prevents signal clipping or back-driving during hot-plug or bias voltage mismatch |
| Off-Leakage Current | ±10nA max - avoids DC offset accumulation in sensitive audio or sensor front-end paths |
Pinout & Package
MAX4852HETE+ is housed in a 16-pin Thin QFN (TQFN-EP) package measuring 3mm × 3mm × 0.8mm, with exposed paddle thermally and electrically connected to GND. The package supports high-density PCB layouts and efficient thermal dissipation in handheld devices.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN1, IN2 | Digital control inputs | CMOS-compatible logic pins controlling SPDT state; accept 0–5.5V swing independent of VCC |
| COM1, COM2 | Common analog terminals | Bidirectional signal ports-connect to USB D+/D– or audio source; support rail-to-rail signal routing |
| NO1, NO2 | Normally open switch terminals | Connect to destination path (e.g., USB host port) when corresponding IN_ = HIGH |
| NC1, NC2 | Normally closed switch terminals | Connect to alternate path (e.g., USB device port or audio codec) when corresponding IN_ = LOW |
| VCC | Power supply | +2V to +5.5V analog/digital supply; requires local 0.01µF bypass capacitor |
| GND | Ground reference | Analog and digital ground; must be tied to exposed paddle for optimal noise immunity |
| N.C. (Pins 1,2,3,8,11,13) | No connection | Internally unconnected; must be left floating or grounded per layout best practices |
Key Features
| Feature | Design Value |
|---|---|
| Over-rail high-impedance mode | Switch input goes Hi-Z when signal exceeds VCC, eliminating clamping diode conduction and protecting upstream sources |
| Asymmetric on-resistance | 3.5Ω/7Ω pairing allows matched impedance routing for differential signals while minimizing loss on single-ended paths |
| Ultra-low dynamic skew | 0.1ns typical skew between D+/D– paths ensures USB full-speed eye compliance and reduces bit error rate |
| Sub-1µA quiescent current | 1µA typical ICC enables persistent USB detect or audio mute functions without draining battery in standby |
| 135MHz bandwidth | Preserves signal integrity for 12Mbps USB data and 20kHz audio harmonics with <0.04% THD |
Applications
| USB 2.0 Full-Speed Multiplexing | Mobile Audio Path Switching |
|---|---|
Use Scenario: Routing USB D+/D– signals between host and peripheral modes in dual-role smartphones or OTG accessories. IC Role / Device Role / Timing Role: Dual SPDT analog switch providing break-before-make isolation and sub-1ns skew control for USB signal integrity. Use Value: Enables seamless USB role switching without signal degradation or timing violations, meeting USB-IF full-speed electrical compliance. | Use Scenario: Selecting between headset jack and speaker output in notebook computers or tablets with shared audio codec resources. IC Role / Device Role / Timing Role: Low-distortion analog switch managing bidirectional audio paths with <0.04% THD across 20Hz–20kHz. Use Value: Eliminates pop/click artifacts during audio source switching and maintains SNR >95dB in portable audio systems. |
| Cellular Phone Mute/Send Key Detection | Handheld PDA Data Interface Selection |
Use Scenario: Isolating microphone or earpiece paths during call control events (e.g., mute activation or send-key press) in GSM/WCDMA handsets. IC Role / Device Role / Timing Role: Low-leakage (±10nA) SPDT switch ensuring DC-coupled audio path stability during fast transitions. Use Value: Prevents audible artifacts and maintains bias point integrity during rapid audio path reconfiguration. | Use Scenario: Dynamically selecting between SD card, USB, or serial debug interfaces in PDAs and industrial handhelds with shared controller pins. IC Role / Device Role / Timing Role: High-bandwidth (135MHz), low-capacitance (12pF COFF) switch enabling glitch-free interface arbitration. Use Value: Reduces PCB layer count by consolidating multiple I/O paths into one compact 3×3mm footprint. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual SPDT analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4852ETE+ | Same pinout and function but pass-through over-rail behavior (not high-Z); 1µA supply current identical | Suitable where over-voltage signals must pass unchanged rather than enter Hi-Z state | Select MAX4852ETE+ when preserving signal continuity above VCC is required; MAX4852HETE+ when isolation during over-rail conditions is critical |
| TMUX1574RSVR | 4-channel SPDT, 5Ω RON, 1.8V–5.5V supply, no over-rail Hi-Z mode, 15pF COFF | Lacks dedicated over-rail protection; higher capacitance limits USB 2.0 full-speed margin | Use TMUX1574RSVR only in non-USB applications where pin count flexibility outweighs over-rail safety needs |
Compared with MAX4852ETE+, MAX4852HETE+ adds fail-safe high-impedance response to over-rail events-critical for hot-plug robustness-while maintaining identical supply current and bandwidth. Against TMUX1574RSVR, it delivers superior USB timing margin via lower skew and off-capacitance, at the cost of channel count flexibility.
Availability
MAX4852HETE+ is available at Aetrix Electronics and suitable for USB 2.0 full-speed multiplexing, mobile audio path switching, and cellular phone mute/send key detection requiring stable component supply across consumer electronics production cycles.
Supply support for MAX4852HETE+ includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Maxim Integrated (now part of Analog Devices) is a U.S.-based semiconductor company specializing in precision analog, mixed-signal, and power management ICs for industrial, communications, and consumer applications.
The MAX4850/MAX4852 family was designed specifically for high-fidelity, low-power analog signal routing in portable electronics-emphasizing over-rail tolerance, USB 2.0 compliance, and ultra-small packaging for space-constrained handheld platforms.
FAQ
What is the over-rail behavior of MAX4852HETE+ compared to MAX4852ETE+?
The MAX4852HETE+ enters a high-impedance state when input signals exceed VCC, blocking conduction and preventing back-driving. In contrast, MAX4852ETE+ passes over-rail signals through without distortion. This makes MAX4852HETE+ safer for hot-plug scenarios where voltage mismatches may occur, such as USB OTG connections. Both share identical pinout, supply current, and bandwidth specifications.
Does MAX4852HETE+ support USB 2.0 full-speed (12Mbps) signal routing?
Yes, MAX4852HETE+ supports USB 2.0 full-speed operation with guaranteed 0.1ns differential skew, 135MHz –3dB bandwidth, and 12pF NO_/NC_ off-capacitance-meeting USB-IF electrical compliance for D+/D– routing. Its 3.5Ω/7Ω on-resistance pair minimizes insertion loss, and its break-before-make timing prevents shorting during state transitions, making MAX4852HETE+ suitable for certified USB multiplexing in handheld devices.
What is the maximum analog signal voltage range supported by MAX4852HETE+?
MAX4852HETE+ supports analog signals from 0V to +5.5V-regardless of VCC level (which can be as low as +2V). When signals exceed VCC, the switch input transitions to high-impedance mode instead of clamping, preserving signal integrity and protecting upstream circuitry. This over-rail capability is confirmed across the full operating temperature range (–40°C to +85°C) and is a defining feature of the MAX4852HETE+ variant.
Can MAX4852HETE+ be used in audio applications requiring low THD?
Yes, MAX4852HETE+ achieves 0.04% total harmonic distortion (THD) across 20Hz–20kHz at 1V RMS with 600Ω load-validated in the official datasheet. Its low 3.5Ω/7Ω on-resistance, flat RON vs. voltage profile, and 50pF COM on-capacitance minimize nonlinearities and phase distortion. These characteristics make MAX4852HETE+ well-suited for high-fidelity audio path switching in smartphones, notebooks, and portable media players.
What package type and thermal considerations apply to MAX4852HETE+?
MAX4852HETE+ uses a 16-pin Thin QFN (TQFN-EP) package sized 3mm × 3mm × 0.8mm with an exposed paddle. The paddle must be soldered to a PCB ground plane for optimal thermal performance and EMI suppression. With 1667mW max power dissipation at +70°C and 20.8mW/°C derating above that, MAX4852HETE+ remains within safe junction limits (<+150°C) even under continuous 100mA switched current-provided proper PCB copper area and thermal vias are implemented.
MAX4852HETE+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- *
- Packaging:
- Bulk
- Product Status:
- Active
- Switch Circuit:
- -
- Multiplexer/Demultiplexer Circuit:
- -
- Number of Circuits:
- -
- On-State Resistance (Max):
- -
- Channel-to-Channel Matching (ΔRon):
- -
- Voltage - Supply, Single (V+):
- -
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- -
- -3db Bandwidth:
- -
- Charge Injection:
- -
- Channel Capacitance (CS(off), CD(off)):
- -
- Current - Leakage (IS(off)) (Max):
- -
- Crosstalk:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
MAX4852HETE+ FAQ
1.How can I place an order for MAX4852HETE+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4852HETE+ on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MAX4852HETE+ reliable?
The price and inventory of MAX4852HETE+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4852HETE+ is usually 5 days.
3.What payment methods are accepted for MAX4852HETE+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4852HETE+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4852HETE+?
MAX4852HETE+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4852HETE+ order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MAX4852HETE+?
For technical support, including MAX4852HETE+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4852HETE+ requirements.
6.How does Aetrix verify that MAX4852HETE+ is sourced from the original manufacturer or authorized distributors?
All MAX4852HETE+ products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MAX4852HETE+ meets industry standards.
7.What is the process for return or replacement of MAX4852HETE+?
All MAX4852HETE+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX4852HETE+, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MAX4852HETE+ part is unused and in its original packaging.
Return procedure for MAX4852HETE+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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