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Analog Devices Inc./Maxim Integrated MAX4751EUD+T
- Part No.:
- MAX4751EUD+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MAX4751EUD+T.pdf
- Description:
- IC SW SPST-NOX4 900MOHM 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,566
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Product details
Overview
MAX4751EUD+T 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 1.8V CMOS logic compatibility-designed for rail-to-rail signal routing in battery-powered audio/video systems.
For engineers reviewing the MAX4751EUD+T datasheet, MAX4751EUD+T pinout, MAX4751EUD+T application, or MAX4751EUD+T equivalent, key selection criteria include on-resistance matching (0.12Ω max), off-isolation (–65dB at 1MHz), charge injection (21pC), and TSSOP-14 package compatibility with space-constrained portable designs.
Technical Context
The MAX4751EUD+T implements four independent normally open (NO) SPST switches using CMOS process technology, enabling bidirectional analog signal switching across the full 0V to V+ range. Its control logic accepts 1.8V-compatible inputs even when powered from +1.6V to +3.6V, and it guarantees <1µW quiescent power consumption.
Switching performance is characterized by tight RON flatness (0.1Ω max) and matching (0.12Ω max) at +3V, ensuring minimal gain error in precision multiplexing. The device supports continuous 100mA channel current and features low leakage (<±5nA at TMAX) for high-impedance signal paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-resistance (RON) | 0.9Ω max at +3V supply - enables low insertion loss in audio and sensor signal paths |
| RON matching | 0.12Ω max at +3V - ensures consistent channel gain in multi-channel data acquisition |
| Turn-on time (tON) | 30ns max - supports high-speed signal routing in USB 1.1 and PCM interfaces |
| Off-isolation | –65dB at 1MHz - suppresses crosstalk between adjacent channels in video switching |
| Charge injection | 21pC max - minimizes voltage glitch during switching in precision ADC front-ends |
| Supply range | +1.6V to +3.6V - compatible with Li-ion, Li-poly, and dual-cell alkaline battery systems |
| Logic compatibility | 1.8V CMOS input threshold at +3V supply - interoperable with modern low-voltage microcontrollers |
Pinout & Package
The MAX4751EUD+T is housed in a 14-pin TSSOP package (3.0mm × 4.4mm, 0.65mm pitch) with exposed pad not present. Pin 14 is V+, pins 7 and 13 are GND, and all COM/NO/IN pins are assigned per functional diagram.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3, 8, 11 | NO1–NO4 | Normally open switch terminals - connect only when corresponding INx is HIGH |
| 2, 4, 9, 10 | COM1–COM4 | Common analog signal nodes - bidirectional, support rail-to-rail voltage swing |
| 5, 6, 12, 13 | IN1–IN4 | Digital control inputs - 1.8V CMOS compatible, drive NOx closed when HIGH |
| 7 | GND | Analog/digital ground reference - must be low-impedance for low-noise operation |
| 14 | V+ | Single positive supply - powers analog core and logic; requires 0.1µF bypass to GND |
Key Features
| Feature | Design Value |
|---|---|
| Low on-resistance flatness | 0.1Ω max variation over full 0V–V+ signal range - preserves linearity in audio DAC outputs |
| Bidirectional signal path | COM/NO pins interchangeable as input or output - simplifies PCB layout in mux/demux topologies |
| Ultra-low leakage | <±5nA off-leakage at +85°C - maintains accuracy in high-impedance sensor monitoring circuits |
| High current handling | 100mA continuous per channel - supports direct connection to op-amp drivers and LED bias paths |
| Fast switching with low glitch | 30ns tON/25ns tOFF, 21pC charge injection - reduces settling time in automated test equipment |
Applications
| Audio Signal Routing | Battery-Powered Data Acquisition |
|---|---|
Use Scenario: Switching stereo analog audio paths between codec, headphone amplifier, and microphone preamp in smartphones. IC Role / Device Role / Timing Role: Quad SPST analog switch routing unidirectional/bidirectional line-level signals with minimal THD (0.031%) and crosstalk (–80dB). Use Value: Enables compact, low-power audio subsystems without external level-shifting or buffering. | Use Scenario: Multiplexing sensor outputs (thermistor, accelerometer, ambient light) into a single ADC channel in wearable health monitors. IC Role / Device Role / Timing Role: Low-leakage, low-RON analog switch isolating high-impedance sensors during sampling to prevent loading errors. Use Value: Maintains measurement accuracy (<0.1% gain error) while reducing BOM count and PCB area vs. discrete FET solutions. |
| PCMCIA/CardBus Interface | Modem Analog Front-End |
Use Scenario: Isolating host controller I/O lines from PCMCIA card signals during hot-plug events in industrial laptops. IC Role / Device Role / Timing Role: Quad SPST switch providing break-before-make isolation (via MAX4753 variant) and ±100mA surge tolerance. Use Value: Prevents bus contention and latch-up during card insertion/removal without requiring system reset. | Use Scenario: Routing analog line-in, line-out, and speaker signals in DSL/cable modems with integrated voice ports. IC Role / Device Role / Timing Role: Low-distortion analog switch supporting 20Hz–20kHz bandwidth with <0.031% THD at 3V supply. Use Value: Delivers carrier-grade voice quality while operating from single 3.3V rail, eliminating dual-supply complexity. |
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 |
|---|---|---|---|
| MAX4751EGE+T | Same electrical specs; 16-pin QFN-EP (3mm × 3mm) package with exposed thermal pad | Higher power density and improved thermal performance in thermally constrained layouts | Select for space-constrained, high-reliability applications requiring enhanced thermal dissipation |
| ADG712BRUZ | 0.8Ω RON max at +3V, but 45ns tON, –55dB off-isolation, and no 1.8V logic compatibility | Lower RON but slower switching and reduced noise rejection in RF-adjacent designs | Choose when ultimate on-resistance matters more than speed or isolation in non-critical signal paths |
Compared with MAX4751EGE+T, the MAX4751EUD+T offers identical analog performance in a larger, lead-frame TSSOP package better suited for manual assembly and thermal testing; versus ADG712BRUZ, it delivers superior speed, isolation, and logic compatibility at marginally higher RON, making it preferred for portable audio and high-fidelity data acquisition.
Availability
MAX4751EUD+T is available at Aetrix Electronics and suitable for battery-powered systems, audio/video signal routing, and low-voltage data-acquisition systems requiring stable component supply and long-term lifecycle support.
Supply support for MAX4751EUD+T 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 markets.
The MAX4751EUD+T belongs to Maxim's low-voltage analog switch product line, engineered specifically for rail-to-rail signal integrity and ultra-low power operation in portable and battery-critical applications.
FAQ
What is the maximum continuous current rating per channel for the MAX4751EUD+T?
The MAX4751EUD+T supports 100mA continuous current per channel under normal operating conditions. This rating applies to all COM, NO, and NC terminals and is validated across the full –40°C to +85°C temperature range. Exceeding this limit may increase on-resistance drift or accelerate wear-out mechanisms in the internal MOSFET structure. Derating is recommended above +70°C ambient.
Does the MAX4751EUD+T require external pull-up or pull-down resistors on its digital inputs?
No, the MAX4751EUD+T does not require external pull-up or pull-down resistors on its IN1–IN4 pins. Its digital inputs have guaranteed 1.8V CMOS-compatible thresholds (VIH = 1.4V min, VIL = 0.5V max) and exhibit <1µA leakage across temperature. Driving inputs directly from microcontroller GPIOs or FPGA outputs is fully supported without additional biasing components.
Can the MAX4751EUD+T operate reliably from a 1.8V supply?
Yes, the MAX4751EUD+T operates reliably from a +1.8V supply, delivering 2.5Ω max on-resistance and 35ns max turn-on time. Its specified supply range is +1.6V to +3.6V, and all key parameters-including leakage, switching speed, and logic compatibility-are characterized and guaranteed at 1.8V. Performance remains stable across the full industrial temperature range.
What is the function of Pin 7 in the MAX4751EUD+T TSSOP package?
Pin 7 of the MAX4751EUD+T is the GND terminal, serving as the common analog and digital ground reference for the entire device. It must be connected to a low-impedance system ground plane to ensure stable switching behavior, minimize noise coupling, and maintain specified leakage and RON performance. The datasheet specifies two GND pins (Pin 7 and Pin 13) to reduce ground path inductance in high-speed applications.
Is the MAX4751EUD+T pin-compatible with the MAX4752EUD+T or MAX4753EUD+T?
Yes, the MAX4751EUD+T is pin-compatible with both MAX4752EUD+T and MAX4753EUD+T in the 14-pin TSSOP package. All three share identical pinouts, supply requirements, and timing characteristics. The difference lies solely in switch configuration: MAX4751 has four NO switches, MAX4752 has four NC switches, and MAX4753 has two NO + two NC. No PCB changes are required when substituting within this family.
MAX4751EUD+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Switch Circuit:
- SPST - NO
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Number of Circuits:
- 4
- On-State Resistance (Max):
- 900mOhm
- Channel-to-Channel Matching (ΔRon):
- 30mOhm
- Voltage - Supply, Single (V+):
- 1.6V ~ 3.6V
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- 85ns, 45ns
- -3db Bandwidth:
- 250MHz
- Charge Injection:
- 9pC
- Channel Capacitance (CS(off), CD(off)):
- 20pF, 20pF
- Current - Leakage (IS(off)) (Max):
- 100pA
- Crosstalk:
- -84dB @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-TSSOP
MAX4751EUD+T FAQ
1.How can I place an order for MAX4751EUD+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4751EUD+T 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+T reliable?
The price and inventory of MAX4751EUD+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4751EUD+T is usually 5 days.
3.What payment methods are accepted for MAX4751EUD+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4751EUD+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4751EUD+T?
MAX4751EUD+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4751EUD+T 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+T?
For technical support, including MAX4751EUD+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4751EUD+T requirements.
6.How does Aetrix verify that MAX4751EUD+T is sourced from the original manufacturer or authorized distributors?
All MAX4751EUD+T 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+T meets industry standards.
7.What is the process for return or replacement of MAX4751EUD+T?
All MAX4751EUD+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4751EUD+T, 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+T part is unused and in its original packaging.
Return procedure for MAX4751EUD+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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