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Analog Devices Inc./Maxim Integrated MAX4651EUE+
- Part No.:
- MAX4651EUE+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MAX4651EUE+.pdf
- Description:
- IC SWITCH SPST-NCX4 4OHM 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:118
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Product details
Overview
MAX4651EUE+ from Maxim Integrated is a quad SPST analog switch with four normally closed (NC) channels, designed for low-distortion signal routing in battery-powered and rail-to-rail analog systems. It delivers 4Ω max on-resistance at +5V, 0.2Ω max on-resistance matching between channels, and 0.1nA off-leakage at +25°C - enabling precision data acquisition and audio switching.
For engineers reviewing the MAX4651EUE+ datasheet, MAX4651EUE+ pinout, MAX4651EUE+ application, or MAX4651EUE+ equivalent, key selection criteria include NC-switch topology, 16-pin TSSOP package compatibility, single-supply operation down to +1.8V, and sub-20ns switching performance in low-power signal-path designs.
Technical Context
The MAX4651EUE+ implements CMOS-based SPST switches with integrated protection diodes and rail-to-rail analog signal handling (GND to V+). Its logic inputs are TTL/CMOS-compatible, supporting direct interfacing with microcontrollers and FPGAs without level-shifting.
Each of the four NC switches exhibits matched on-resistance (≤0.2Ω), flat on-resistance profile (≤0.8Ω over full signal range at 5V), and low charge injection (2pC), ensuring minimal signal corruption in sample-and-hold and multiplexed ADC front-ends.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-resistance (max) | 4Ω at +5V supply - ensures minimal voltage drop and power loss in signal paths up to ±50mA per channel |
| On-resistance matching | 0.2Ω max across all four channels - enables precise gain/offset matching in differential or multi-channel sensing |
| Off-leakage current | 0.1nA at +25°C - preserves high-impedance node integrity in low-current sensor interfaces and battery-monitoring circuits |
| Supply voltage range | +1.8V to +5.5V - supports direct integration into Li-ion, coin-cell, and mixed-voltage embedded systems |
| Turn-on/turn-off time | 20ns / 12ns typical - meets timing requirements for high-speed multiplexing in automated test equipment and communications circuits |
| Crosstalk | -100dB at 1MHz - prevents coupling-induced interference between adjacent switched signals in audio/video routing |
| Rail-to-rail signal range | GND to V+ - allows full utilization of ADC input range and eliminates external biasing in unipolar signal chains |
Pinout & Package
MAX4651EUE+ is housed in a 16-pin TSSOP package (4.4mm × 5.0mm, 0.65mm pitch), optimized for space-constrained PCB layouts while maintaining thermal and electrical performance comparable to SOIC.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN1–IN4 | Digital control input | Active-low logic controls NC closure; low = switch closed (COM–NC path enabled) |
| COM1–COM4 | Analog common terminal | Primary signal path connection point; routed to NC when corresponding IN is low |
| NC1–NC4 | Normally closed analog terminal | Default-connected path to COM; opens only when IN is high - ideal for fail-safe signal continuity |
| V+ | Positive supply | Single +1.8V to +5.5V rail powers analog and digital sections; no separate logic supply required |
| GND | Ground reference | Common return for analog signal and digital control; must be low-impedance for leakage and noise control |
| N.C. | No internal connection | Pins 3, 6, 11, 14 are unconnected - must be left floating or tied to GND per layout best practices |
Key Features
| Feature | Design Value |
|---|---|
| Normally closed (NC) topology | Ensures default signal continuity during power-up, reset, or control failure - critical for safety-critical monitoring paths |
| 0.8Ω on-resistance flatness | Maintains consistent gain and linearity across full analog input range (0V to V+), reducing THD in audio and instrumentation |
| 2pC charge injection | Minimizes voltage glitch on sampled nodes - essential for high-resolution SAR ADC front-ends and precision hold circuits |
| -75dB off-isolation at 1MHz | Blocks crosstalk from inactive channels into sensitive measurement paths, improving dynamic range in multi-signal systems |
| TTL/CMOS logic compatibility | Accepts standard 0V/3.3V or 0V/5V control signals without external translators - simplifies interface with MCU GPIOs |
Applications
| Battery-Powered Data Loggers | Audio Signal Routing |
|---|---|
Use Scenario: Multiplexing thermistor, pressure, and humidity sensor outputs into a single low-power ADC channel. IC Role / Device Role / Timing Role: Quad NC switch routes analog sensor voltages sequentially under MCU control; default-closed state maintains baseline connectivity during sleep mode. Use Value: Eliminates mechanical relay wear and reduces quiescent current by >95% versus electromechanical alternatives, extending battery life in remote IoT nodes. | Use Scenario: Selecting between multiple microphone inputs or headphone outputs in portable audio devices. IC Role / Device Role / Timing Role: Low-RON, low-charge-injection NC switch passes full audio bandwidth (20Hz–20kHz) with <0.02% THD and no audible pop/click. Use Value: Enables seamless input/output switching without external DC-blocking capacitors or bias networks due to rail-to-rail signal support. |
| Low-Voltage Industrial Sensors | Relay Replacement in Test Equipment |
Use Scenario: Isolating fault currents in 3.3V PLC analog input modules using redundant NC paths. IC Role / Device Role / Timing Role: Four independent NC switches provide fail-safe signal continuity; 0.1nA leakage prevents drift in high-impedance 4–20mA receiver circuits. Use Value: Replaces bulky reed relays with 75% smaller footprint and guaranteed 1M+ operational cycles - no contact oxidation or bounce issues. | Use Scenario: Configuring signal paths in automated test fixtures requiring nanosecond-level switching repeatability. IC Role / Device Role / Timing Role: High-speed (20ns tON) NC switch enables rapid stimulus/response sequencing; matched RON ensures consistent channel calibration across test vectors. Use Value: Delivers 10× faster test throughput versus electromechanical relays while eliminating maintenance downtime from contact wear. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4652EUE+ | Four normally open (NO) configuration instead of NC; identical RON, timing, and supply specs | Suitable where default-open behavior is required (e.g., power gating, enable-only signal paths) | Select MAX4652EUE+ only when circuit design requires interruption of signal flow at power-up or logic high state |
| ADG1412BRUZ | 4-channel NO switch with 1.8Ω RON (lower), but requires dual ±5V or single +15V supply; not 1.8V compatible | Better for high-precision, high-voltage industrial DAQ - incompatible with battery-powered or low-voltage logic systems | Choose ADG1412BRUZ only when ultra-low RON and higher voltage swing outweigh single-supply convenience and low-voltage operation |
Compared with MAX4652EUE+, the MAX4651EUE+ provides inherent fail-safe continuity; compared with ADG1412BRUZ, it enables true single-supply portability below 2V but trades off absolute on-resistance for broader voltage flexibility and lower system cost.
Availability
MAX4651EUE+ is available at Aetrix Electronics and suitable for battery-powered data loggers, audio signal routing, low-voltage industrial sensors, and relay replacement in test equipment requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for MAX4651EUE+ 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, automotive, and communications markets.
The MAX4651/MAX4652/MAX4653 family targets low-voltage, low-distortion analog signal routing - specifically engineered for space- and power-constrained systems needing rail-to-rail performance and robust NC/NO switching topologies.
FAQ
What is the maximum operating supply voltage for the MAX4651EUE+?
The MAX4651EUE+ supports a single supply voltage from +1.8V to +5.5V, with absolute maximum rating of +6V on V+. Operation beyond +5.5V is not specified and may compromise reliability or parametric performance. At +5.5V, on-resistance remains ≤4.5Ω and off-leakage stays within 0.1nA limits across the -40°C to +85°C temperature range - confirming robustness in nominal 5V systems.
Does the MAX4651EUE+ require external pull-up or pull-down resistors on its IN pins?
No, the MAX4651EUE+ does not require external pull-up or pull-down resistors on IN1–IN4. Its TTL/CMOS-compatible inputs have leakage current ≤±100nA and defined VIH (2.4V min at +5V supply) and VIL (0.8V max), allowing direct connection to microcontroller GPIOs. Internal input structure ensures stable logic thresholds without external biasing - verified across -40°C to +85°C and full supply range.
Can the MAX4651EUE+ handle bipolar analog signals?
No, the MAX4651EUE+ cannot handle true bipolar signals (e.g., ±2.5V). It is specified for rail-to-rail operation from GND to V+, meaning analog inputs must stay within 0V to V+ (e.g., 0V to 5V). Signals exceeding this range risk forward-biasing internal ESD diodes, causing leakage or damage. For bipolar applications, level-shifting circuitry or a dual-supply switch like the MAX301 must be used instead of the MAX4651EUE+.
What is the thermal resistance (θJA) of the MAX4651EUE+ in its 16-pin TSSOP package?
The MAX4651EUE+ in 16-pin TSSOP has a junction-to-ambient thermal resistance (θJA) of 176°C/W, derived from its 457mW maximum power dissipation at +70°C ambient and 5.7mW/°C derating above that temperature. This value assumes standard JEDEC 2-layer board conditions; actual θJA improves with added copper pour or thermal vias. No thermal pad is present - the package uses standard plastic TSSOP construction without exposed die attach paddle.
Is the MAX4651EUE+ pin-compatible with other members of the MAX465x family?
Yes, the MAX4651EUE+, MAX4652EUE+, and MAX4653EUE+ share identical 16-pin TSSOP pinouts and package dimensions. All three variants use the same pin mapping for IN1–IN4, COM1–COM4, V+, GND, and N.C. terminals. However, their internal switch configurations differ: MAX4651EUE+ is NC-only, MAX4652EUE+ is NO-only, and MAX4653EUE+ combines two NO and two NC switches - requiring firmware or schematic updates despite mechanical compatibility.
MAX4651EUE+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Active
- Switch Circuit:
- SPST - NC
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Number of Circuits:
- 4
- On-State Resistance (Max):
- 4Ohm
- Channel-to-Channel Matching (ΔRon):
- 50mOhm
- Voltage - Supply, Single (V+):
- 1.8V ~ 5.5V
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- 14ns, 8ns
- -3db Bandwidth:
- -
- Charge Injection:
- 2pC
- Channel Capacitance (CS(off), CD(off)):
- 16pF, 16pF
- Current - Leakage (IS(off)) (Max):
- 100pA
- Crosstalk:
- -100dB @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-TSSOP
MAX4651EUE+ FAQ
1.How can I place an order for MAX4651EUE+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4651EUE+ 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 MAX4651EUE+ reliable?
The price and inventory of MAX4651EUE+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4651EUE+ is usually 5 days.
3.What payment methods are accepted for MAX4651EUE+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4651EUE+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4651EUE+?
MAX4651EUE+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4651EUE+ 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 MAX4651EUE+?
For technical support, including MAX4651EUE+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4651EUE+ requirements.
6.How does Aetrix verify that MAX4651EUE+ is sourced from the original manufacturer or authorized distributors?
All MAX4651EUE+ 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 MAX4651EUE+ meets industry standards.
7.What is the process for return or replacement of MAX4651EUE+?
All MAX4651EUE+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX4651EUE+, 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 MAX4651EUE+ part is unused and in its original packaging.
Return procedure for MAX4651EUE+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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