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Analog Devices Inc./Maxim Integrated MAX4751EUD+TG35
- Part No.:
- MAX4751EUD+TG35
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- -
- Datasheet:
-
MAX4751EUD+TG35.pdf
- Description:
- INTEGRATED CIRCUIT
- Quantity:
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Inventory:1,999
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Product details
Overview
MAX4751EUD+TG35 from Maxim Integrated is a low-voltage, single-supply quad SPST analog switch with 0.9Ω max on-resistance at +3V, 30ns turn-on time, and rail-to-rail signal handling (0V to V+). It features four normally open (NO) switches, operates from +1.6V to +3.6V, consumes <1µW quiescent power, and is used in battery-powered audio routing and low-voltage data-acquisition front-ends.
For engineers reviewing the MAX4751EUD+TG35 datasheet, MAX4751EUD+TG35 pinout, MAX4751EUD+TG35 application, or MAX4751EUD+TG35 equivalent, key selection criteria include on-resistance matching (0.12Ω max), break-before-make absence, 1.8V CMOS logic compatibility at +3V supply, and TSSOP-14 package thermal performance for portable system integration.
Technical Context
The MAX4751EUD+TG35 implements four independent NMOS-based SPST switches with no internal level-shifting circuitry-logic inputs accept 0V/+3.6V regardless of V+ (1.6V–3.6V), enabling direct interface with 1.8V microcontrollers. Its CMOS architecture ensures bidirectional analog signal flow and minimal charge injection (21pC typical).
Unlike the MAX4753, it lacks break-before-make timing control and uses only NO topology-eliminating cross-conduction risk but requiring external sequencing in multiplexer configurations where channel isolation during transition is critical. All channels share a common V+ and GND, with no internal ESD diodes beyond absolute maximum clamping.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-resistance (RON) | 0.9Ω max at +3V supply - enables ≤100mA continuous current per channel without significant voltage drop or self-heating. |
| On-resistance matching (∆RON) | 0.12Ω max at +3V - ensures ≤0.12V mismatch across channels when switching identical signals, critical for precision multiplexing. |
| Turn-on/turn-off time | tON = 30ns, tOFF = 25ns (RL = 50Ω, CL = 35pF) - supports >10MHz analog signal switching without edge distortion. |
| Analog signal range | 0V to V+ (rail-to-rail) - allows full-swing audio, sensor, or ADC/DAC interface signals without clipping or level shifting. |
| Logic input compatibility | 1.8V CMOS compatible at +3V supply - interfaces directly with 1.8V I/O domains without external translators. |
| Quiescent supply current | <1µW total - negligible power impact in always-on battery monitoring or wake-up signal paths. |
| Off-leakage current | ±5nA max (TA = –40°C to +85°C) - preserves signal integrity in high-impedance sensor front-ends (e.g., thermocouple or pH electrode inputs). |
Pinout & Package
MAX4751EUD+TG35 is housed in a 14-pin TSSOP package (3.0mm × 4.4mm, 0.65mm pitch) with exposed pad not present-unlike QFN variants. Pin 14 is V+, pins 7 and 13 are GND, and all COM/NO/IN pins are arranged for minimal crosstalk in compact PCB layouts.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3, 8, 11 | NO1–NO4 | Normally open switch terminals - connect only when corresponding INx is HIGH; isolated from COM when LOW. |
| 2, 4, 9, 10 | COM1–COM4 | Common analog path - bidirectional; routes signal between NOx and system node (e.g., ADC input or codec line). |
| 5, 6, 12, 13 | IN1–IN4 | Digital control inputs - TTL/CMOS compatible; drive switches independently; no internal pull-ups/downs. |
| 7 | GND | Analog/digital ground reference - must be low-impedance connection to minimize noise coupling into analog paths. |
| 14 | V+ | Single positive supply (1.6V–3.6V) - powers analog switch core and input buffers; requires 0.1µF local bypass to GND. |
Key Features
| Feature | Design Value |
|---|---|
| Low on-resistance flatness | 0.1Ω max over 0V–3V signal range - maintains consistent gain and THD across full audio band (20Hz–20kHz). |
| Rail-to-rail analog operation | Supports signals from GND to V+ - eliminates need for external biasing in single-supply sensor interfaces or headphone amplifiers. |
| High current capability | 100mA continuous per channel - sufficient for driving 32Ω headphones or charging sample-hold capacitors in SAR ADCs. |
| Ultra-low leakage | ±5nA off-state leakage - prevents DC error accumulation in high-gain instrumentation amplifier front-ends. |
| Fast switching with low charge injection | 21pC typical charge injection - minimizes glitch-induced settling errors in precision data acquisition sampling. |
Applications
| Audio Signal Routing | Battery-Powered Data Acquisition |
|---|---|
|
Use Scenario: Switching between multiple microphone inputs or stereo headphone outputs in portable media players. IC Role / Device Role / Timing Role: Quad SPST analog switch providing channel-selectable signal path with minimal insertion loss and THD. Use Value: 0.9Ω RON and 0.031% THD preserve audio fidelity; 30ns switching enables seamless mute/unmute without pop/click artifacts. |
Use Scenario: Multiplexing thermistor, RTD, and potentiometer signals into a single ADC channel in handheld test equipment. IC Role / Device Role / Timing Role: Low-leakage analog multiplexer enabling high-impedance sensor interfacing without calibration drift. Use Value: ±5nA off-leakage prevents >1LSB error in 16-bit systems; rail-to-rail range accommodates unbuffered sensor outputs. |
| Low-Voltage Power Path Control | PCMCIA/CardBus Interface Switching |
|
Use Scenario: Enabling/disabling power to USB peripherals or display backlight drivers in ultra-low-power IoT nodes. IC Role / Device Role / Timing Role: Normally open load switch replacing discrete MOSFETs, controlled by MCU GPIOs. Use Value: 100mA rating handles typical peripheral loads; <1µW quiescent power extends battery life in sleep modes. |
Use Scenario: Isolating legacy PCMCIA card signals (VCC, I/O lines) from host controller during hot-plug events. IC Role / Device Role / Timing Role: Signal gate preventing back-driving and voltage contention during card insertion/removal. Use Value: 0.12Ω RON matching ensures balanced timing across data bus lines; 3.6V-tolerant inputs survive card insertion transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad SPST analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4752EUD+T | Four normally closed (NC) configuration instead of NO - complementary switching behavior with inverted logic polarity. | Used where default-closed safety path is required (e.g., fail-safe sensor disconnect), not direct replacement for NO function. | Select MAX4752EUD+T only when NC topology matches system fault strategy; pinout identical but logic inversion requires firmware update. |
| TMUX1574PWR | Higher RON (1.6Ω typ), wider supply (1.08V–3.6V), integrated ESD protection (±2kV HBM), no break-before-make. | Targeted at industrial I/O modules needing robustness; lacks MAX4751EUD+TG35's 0.12Ω matching for precision multiplexing. | Choose TMUX1574PWR for harsh environments requiring ESD hardening; avoid where RON matching or THD <0.035% is mandatory. |
Compared with MAX4752EUD+T, MAX4751EUD+TG35 provides deterministic open-default signal routing; versus TMUX1574PWR, it delivers tighter RON matching and lower THD at the cost of no integrated ESD protection-making it optimal for battery-constrained, high-fidelity signal paths.
Availability
MAX4751EUD+TG35 is available at Aetrix Electronics and suitable for battery-powered systems, audio signal routing, and low-voltage data-acquisition systems requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for MAX4751EUD+TG35 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) designs precision analog, mixed-signal, and power management ICs for industrial, medical, and communications applications.
The MAX4751EUD+TG35 belongs to Maxim's low-voltage analog switch product line, engineered for portable and energy-sensitive systems demanding rail-to-rail signal integrity, ultra-low power, and small-footprint integration.
FAQ
What is the maximum continuous current rating per channel for MAX4751EUD+TG35?
The MAX4751EUD+TG35 supports 100mA continuous current per channel under specified thermal conditions. This rating assumes proper PCB copper area for heat dissipation and operation within the –40°C to +85°C ambient temperature range. Exceeding this current may increase on-resistance and cause thermal shutdown in sustained high-load scenarios.
Does MAX4751EUD+TG35 require external level-shifting when driven by a 1.8V microcontroller?
No, MAX4751EUD+TG35 does not require external level-shifting when used with a 1.8V microcontroller, provided the device is powered from a +3V supply. Its digital inputs are 1.8V CMOS compatible under that condition, accepting VIH ≥ 1.4V and VIL ≤ 0.5V-well within standard 1.8V logic thresholds.
Can MAX4751EUD+TG35 switch signals beyond its V+ supply rail?
No, MAX4751EUD+TG35 cannot reliably switch signals beyond its V+ supply rail. The analog signal range is strictly 0V to V+, and applying voltages outside this range risks forward-biasing internal ESD diodes, causing excessive leakage or permanent damage. Always ensure signal sources remain within the supply rails.
Is the TSSOP package of MAX4751EUD+TG35 lead-free and RoHS compliant?
Yes, the "+" suffix in MAX4751EUD+TG35 indicates a lead(Pb)-free and RoHS-compliant package. The TSSOP-14 variant meets JEDEC J-STD-020 moisture sensitivity level 1 (MSL-1) and is qualified for standard reflow soldering profiles up to +260°C peak temperature.
How does the on-resistance of MAX4751EUD+TG35 vary with supply voltage?
The on-resistance of MAX4751EUD+TG35 increases as supply voltage decreases: 0.9Ω max at +3V, 2.5Ω max at +1.8V. This variation follows a predictable inverse relationship with V+ due to MOSFET channel enhancement characteristics-designers must verify RON impact on signal accuracy at minimum operating voltage.
MAX4751EUD+TG35 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- 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:
- -
MAX4751EUD+TG35 FAQ
1.How can I place an order for MAX4751EUD+TG35 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4751EUD+TG35 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 MAX4751EUD+TG35 reliable?
The price and inventory of MAX4751EUD+TG35 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4751EUD+TG35 is usually 5 days.
3.What payment methods are accepted for MAX4751EUD+TG35?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4751EUD+TG35 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4751EUD+TG35?
MAX4751EUD+TG35 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4751EUD+TG35 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 MAX4751EUD+TG35?
For technical support, including MAX4751EUD+TG35 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4751EUD+TG35 requirements.
6.How does Aetrix verify that MAX4751EUD+TG35 is sourced from the original manufacturer or authorized distributors?
All MAX4751EUD+TG35 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 MAX4751EUD+TG35 meets industry standards.
7.What is the process for return or replacement of MAX4751EUD+TG35?
All MAX4751EUD+TG35 units undergo pre-shipment inspection (PSI). If there is an issue with MAX4751EUD+TG35, 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 MAX4751EUD+TG35 part is unused and in its original packaging.
Return procedure for MAX4751EUD+TG35:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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