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Analog Devices Inc./Maxim Integrated MAX4754AETE+
- Part No.:
- MAX4754AETE+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- -
- Datasheet:
-
MAX4754AETE+.pdf
- Description:
- IC SWITCH QUAD SPDT 16TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,774
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Product details
Overview
MAX4754AETE+ from Maxim Integrated is a quad single-pole double-throw (SPDT) analog switch IC designed for low-distortion audio-signal routing in portable electronics. It features 0.5Ω typical on-resistance, 0.1Ω channel-to-channel matching, 0.035% THD at 20Hz–20kHz, and operates from +1.8V to +5.5V. It is used in speaker-headset switching circuits where rail-to-rail signal handling and minimal charge injection (300pC) are critical.
For engineers reviewing the MAX4754AETE+ datasheet, MAX4754AETE+ pinout, MAX4754AETE+ application, or MAX4754AETE+ equivalent, key selection criteria include on-resistance flatness (0.2Ω typ), break-before-make timing (2ns), off-isolation (−65dB at 100kHz), and compatibility with mixed-voltage logic control inputs up to +5.5V independent of V+.
Technical Context
The MAX4754AETE+ implements four independently controllable SPDT switches using CMOS process technology, each with matched NO/NC paths and bidirectional signal capability. Its dual logic control inputs (INA and INB) drive two switch pairs respectively, enabling discrete routing of stereo audio paths without crosstalk-induced artifacts.
It supports rail-to-rail analog signals (0V to V+) and exhibits flat on-resistance over the full input range, with <0.4Ω variation across temperature (−40°C to +85°C) and supply voltage (1.8V–5.5V). The device integrates improved power-supply current efficiency for non-rail-to-rail control logic-drawing only 6.5µA typical at V+ = 5.5V and VIN = 0.5V or 1.4V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance (RON) | 0.5Ω typical - ensures minimal insertion loss and thermal drift in audio path switching. |
| On-Resistance Matching (ΔRON) | 0.1Ω typical - maintains channel balance critical for stereo differential signaling. |
| THD + Noise | 0.035% typical at 20Hz–20kHz - preserves audio fidelity in headset/speaker output stages. |
| Off-Isolation | −65dB at 100kHz - suppresses leakage between active and inactive audio channels. |
| Break-Before-Make Time | 2ns guaranteed - prevents momentary shorting during switching, avoiding audible pop/click. |
| Supply Voltage Range | +1.8V to +5.5V - supports direct integration with Li-ion battery rails and 3.3V/5V system logic. |
| Logic Input Voltage Tolerance | Up to +5.5V regardless of V+ - enables interoperability with higher-voltage controllers without level shifters. |
Pinout & Package
MAX4754AETE+ is housed in a 16-pin thin QFN with exposed paddle (TQFN-EP, package code T1644-4), measuring 4mm × 4mm × 0.8mm. The exposed paddle must be soldered to GND for thermal and electrical performance.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 (NO1) | Analog Switch 1 Normally Open Terminal | Connects to COM1 when INA = HIGH; used for primary audio path selection (e.g., headset left channel). |
| 2 (INA) | Digital Control Input (Switches 1 & 2) | Active-HIGH logic input controlling NO1/NC1 and NO2/NC2; accepts up to +5.5V regardless of V+. |
| 3 (COM1) | Analog Switch 1 Common Terminal | Central node for SPDT switching; bidirectional-can serve as input or output in audio routing. |
| 4 (NC1) | Analog Switch 1 Normally Closed Terminal | Connected to COM1 when INA = LOW; routes alternate signal path (e.g., internal speaker). |
| 9 (NO2) | Analog Switch 2 Normally Open Terminal | Paired with COM2 and NC2 under INA control; completes first DPDT pair for stereo left/right switching. |
| 10 (INB) | Digital Control Input (Switches 3 & 4) | Active-HIGH logic input controlling NO3/NC3 and NO4/NC4; independent of INA for full quad routing. |
| 11 (COM2) | Analog Switch 2 Common Terminal | Second common node; enables simultaneous switching of two independent analog paths per control signal. |
| 12 (NC2) | Analog Switch 2 Normally Closed Terminal | Provides fail-safe or default path when INA = LOW; critical for mute or fallback speaker modes. |
| 13 (NO3) | Analog Switch 3 Normally Open Terminal | Controlled by INB; routes third audio path (e.g., auxiliary input or secondary headset channel). |
| 14 (GND) | Ground Reference | Reference for analog and digital domains; must be low-impedance connection for THD and noise performance. |
| 15 (COM3) | Analog Switch 3 Common Terminal | Third common node; supports multi-source/multi-load configurations in compact handheld PCB layouts. |
| 16 (NC3) | Analog Switch 3 Normally Closed Terminal | Default path for Switch 3 when INB = LOW; used in headset detection or automatic mode fallback logic. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail signal handling | Supports analog signals from 0V to V+ without clipping-enables direct interface with DAC outputs and amplifier inputs. |
| 0.2Ω on-resistance flatness | Ensures consistent gain and frequency response across full audio band (20Hz–20kHz) regardless of signal amplitude. |
| 300pC charge injection | Minimizes voltage glitch at COM terminals during switching-reduces audible pop in headset applications. |
| −90dB crosstalk | Prevents coupling between adjacent switched channels-essential for stereo separation in mobile audio systems. |
| 10MHz −3dB bandwidth | Preserves high-frequency audio content and supports data-rate signals up to ~3Mbps in non-audio uses. |
Applications
| Speaker-Headset Switching | Audio-Signal Routing |
|---|---|
|
Use Scenario: Automatically toggles audio output between built-in loudspeaker and 3.5mm headset jack during plug detection in smartphones. IC Role / Device Role / Timing Role: Quad SPDT switch routing COM1–COM4 between NC/NO paths under INA/INB control to isolate or connect transducers. Use Value: Eliminates need for mechanical relays or discrete MOSFET arrays-reducing BOM count, board area, and pop/click artifacts via 2ns BBM timing. |
Use Scenario: Routes stereo line-in, microphone bias, and codec outputs among multiple peripherals (e.g., Bluetooth module, FM tuner, USB audio) in PDAs. IC Role / Device Role / Timing Role: Bidirectional analog multiplexer with rail-to-rail support and 0.5Ω RON, enabling lossless signal path reconfiguration. Use Value: Maintains SNR >95dB and THD <0.035% across all paths-preserving fidelity while supporting hot-plug reconfiguration. |
| Cellular Phone Audio Path | Notebook Computer Audio Hub |
|
Use Scenario: Manages earpiece, loudspeaker, and headset outputs in baseband processor audio subsystems with dynamic load switching. IC Role / Device Role / Timing Role: Low-RON analog switch providing 32Ω/8Ω impedance adaptation via NC-path series resistance (not applicable to MAX4754A variant). Use Value: Enables seamless transition between call modes (handset vs. speakerphone) without external passive components or software delay. |
Use Scenario: Consolidates audio I/O from integrated HD Audio controller, discrete DAC, and USB-C audio adapter in ultrabook designs. IC Role / Device Role / Timing Role: High-isolation (−65dB off-isolation) SPDT array preventing ground loops and RF ingress between mixed-signal domains. Use Value: Reduces EMI susceptibility and eliminates need for ferrite beads or RC filters on audio traces-simplifying layout and passing CISPR-22 Class B. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4754ETE+T | No improved power-supply current optimization; draws 2µA typical at V+ = 5.5V, VIN = 0V/V+, versus 6.5µA for MAX4754AETE+ under partial logic swing. | Lacks optimized control-input current profile-less suitable for battery-critical always-on audio monitoring circuits. | Select MAX4754ETE+T only if lowest quiescent current is not required and legacy design reuse is prioritized. |
| MAX4756AETE+T | Single control input (INA) + enable (EN); no INB-reduces routing flexibility but simplifies logic interface. | Designed for unified switching of all four SPDTs simultaneously-ideal for mute/gain-control functions, not independent path routing. | Choose MAX4756AETE+T when quad-switch coordination is needed (e.g., system-wide audio mute), not per-channel control. |
Compared with MAX4754ETE+T, MAX4754AETE+ delivers lower logic-input supply current under partial-swing conditions-critical for energy-efficient headset detection. Versus MAX4756AETE+T, it provides independent dual-control architecture essential for asymmetric audio routing like speaker/headset coexistence.
Availability
MAX4754AETE+ is available at Aetrix Electronics and suitable for cellular phone audio subsystems, notebook computer audio hubs, and PDA audio routing requiring stable component supply, long-term lifecycle support, and lead-free compliance.
Supply support for MAX4754AETE+ 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 high-performance analog, mixed-signal, and power management ICs for industrial, communications, and consumer applications.
The MAX4754A series belongs to Maxim's precision analog switch product line, engineered specifically for low-RON, low-THD audio signal routing in space-constrained portable devices operating from single 1.8V–5.5V supplies.
FAQ
What is the maximum analog signal voltage range supported by the MAX4754AETE+?
The MAX4754AETE+ supports rail-to-rail analog signals from 0V to V+, where V+ ranges from +1.8V to +5.5V. This allows full-swing audio signals (e.g., ±1.65V with 3.3V supply) without clipping or distortion, making it ideal for direct coupling with DACs and headphone amplifiers in portable systems.
Does the MAX4754AETE+ require external pull-up or pull-down resistors on its logic inputs?
No, the MAX4754AETE+ does not require external pull-up or pull-down resistors on INA or INB. Its logic inputs have defined thresholds (VIH = 1.4V min, VIL = 0.5V max at V+ = 2.7V–5.25V) and ≤1µA input leakage, enabling direct connection to microcontroller GPIOs or baseband processor outputs without additional biasing components.
How does the MAX4754AETE+ differ from the MAX4754ETE+T in terms of power consumption?
The MAX4754AETE+ features improved power-supply current optimization for non-rail-to-rail logic inputs, drawing 6.5µA typical at V+ = 5.5V and VIN = 0.5V or 1.4V. In contrast, the MAX4754ETE+T draws only 2µA at full rail (0V/V+) but lacks this partial-swing efficiency-making MAX4754AETE+ preferable for low-power always-on audio monitoring circuits.
Can the MAX4754AETE+ be used in DC-coupled applications?
Yes, the MAX4754AETE+ supports DC-coupled operation due to its rail-to-rail analog signal handling (0V to V+) and absence of blocking capacitors in the signal path. Its 0.5Ω on-resistance and <0.4Ω flatness ensure minimal DC offset and gain error-validated for use in sensor signal switching and precision instrumentation interfaces.
What is the thermal performance of the MAX4754AETE+ in its TQFN package?
The MAX4754AETE+ in the 4mm × 4mm TQFN-EP package has a thermal resistance θJA of 74°C/W (typical) and continuous power dissipation of 1349mW at TA = +70°C, derating 16.9mW/°C above that temperature. The exposed paddle must be soldered to a solid GND plane to achieve rated thermal performance and ensure reliable operation at full 85°C ambient.
MAX4754AETE+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- *
- Packaging:
- Bulk
- Product Status:
- Obsolete
- 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:
- -
MAX4754AETE+ FAQ
1.How can I place an order for MAX4754AETE+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4754AETE+ 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 MAX4754AETE+ reliable?
The price and inventory of MAX4754AETE+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4754AETE+ is usually 5 days.
3.What payment methods are accepted for MAX4754AETE+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4754AETE+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4754AETE+?
MAX4754AETE+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4754AETE+ 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 MAX4754AETE+?
For technical support, including MAX4754AETE+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4754AETE+ requirements.
6.How does Aetrix verify that MAX4754AETE+ is sourced from the original manufacturer or authorized distributors?
All MAX4754AETE+ 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 MAX4754AETE+ meets industry standards.
7.What is the process for return or replacement of MAX4754AETE+?
All MAX4754AETE+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX4754AETE+, 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 MAX4754AETE+ part is unused and in its original packaging.
Return procedure for MAX4754AETE+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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