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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:1,618
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Product details
Overview
MAX4651EUE from Maxim Integrated is a quad, normally closed (NC), single-pole single-throw (SPST) CMOS analog switch operating from a single +1.8V to +5.5V supply. It delivers 4Ω maximum on-resistance at +5V, 0.2Ω maximum on-resistance matching between channels, and rail-to-rail analog signal handling up to ±5.5V. It is used in low-distortion audio routing and battery-powered data-acquisition systems where mechanical relay replacement is required.
For engineers reviewing the MAX4651EUE datasheet, MAX4651EUE pinout, MAX4651EUE application, or MAX4651EUE equivalent, key selection criteria include on-resistance flatness (0.8Ω max over signal range), off-isolation (−75dB at 1MHz), turn-on/turn-off times (20ns/12ns typ), leakage current (0.1nA at +25°C), and TSSOP-16 package compatibility with space-constrained PCB layouts.
Technical Context
The MAX4651EUE implements four independent NC SPST switches using matched CMOS transistor pairs, enabling precise analog signal routing without polarity inversion. Its logic inputs are TTL/CMOS-compatible, with VIH = 2.4V and VIL = 0.8V under +5V operation, and it supports full rail-to-rail analog swing (GND to V+) across all channels.
Switching performance is characterized by low charge injection (2pC), minimal crosstalk (−100dB at 1MHz), and stable on-resistance flatness (0.8Ω max) over the entire signal range - critical for precision sample-and-hold and low-THD audio applications. The device guarantees operation from −40°C to +85°C with no external biasing required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance (RON) | 4Ω max at +5V - ensures minimal signal attenuation and voltage drop in precision analog paths |
| On-Resistance Matching | 0.2Ω max - enables accurate channel-to-channel signal balancing in multiplexed systems |
| On-Resistance Flatness | 0.8Ω max over 0–V+ range - maintains consistent gain and linearity across full input signal swing |
| Off-Leakage Current | 0.1nA at +25°C - preserves signal integrity in high-impedance sensor interfaces and sample-hold circuits |
| Turn-On / Turn-Off Time | 20ns / 12ns typ - supports fast-switching applications such as automated test equipment and digital audio routing |
| Off-Isolation | −75dB at 1MHz - prevents signal coupling between inactive and active channels in multi-path systems |
| Supply Voltage Range | +1.8V to +5.5V - enables direct integration into Li-ion powered and mixed-voltage embedded systems |
Pinout & Package
MAX4651EUE is housed in a 16-pin TSSOP package (4.4mm × 5.0mm, 0.65mm pitch) with exposed pad not present. Pin functions are fully defined per Maxim's official pin description table and verified for this variant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN1–IN4 (Pins 1, 8, 9, 16) | Digital control inputs | Active-low logic controls NC closure; logic "0" connects COMx to NCx |
| COM1–COM4 (Pins 2, 7, 10, 15) | Analog common terminals | Signal input/output node shared between NC and NO paths per switch |
| NC1–NC4 (Pins 3, 6, 11, 14) | Normally closed analog terminals | Connected to respective COMx when INx = 0; open when INx = 1 |
| V+ (Pin 13) | Positive supply | Single power rail supporting +1.8V to +5.5V; powers internal logic and switch FETs |
| GND (Pin 5) | Ground reference | Return path for analog signals and logic; must be low-impedance for THD < 0.02% |
| N.C. (Pins 4, 12) | No connection | Unbonded pins; must remain floating - no PCB trace or thermal pad connection |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog signal handling | Supports GND to V+ input range - eliminates level-shifting in single-supply systems |
| Low on-resistance flatness | 0.8Ω max variation across full signal swing - ensures distortion-free switching in audio and instrumentation |
| TTL/CMOS logic compatibility | VIH = 2.4V, VIL = 0.8V at +5V - interoperates directly with microcontrollers and FPGA I/O without buffers |
| Ultra-low off-leakage | 0.1nA at +25°C - prevents DC error accumulation in high-Z sensor front-ends and integrators |
| Fast switching with low charge injection | tON/tOFF = 20ns/12ns typ, Q = 2pC - minimizes glitch energy in precision sampling and multiplexing |
Applications
| Audio Signal Routing | Portable Data Acquisition |
|---|---|
Use Scenario: Switching between multiple microphone inputs or headphone outputs in a handheld audio codec. IC Role / Device Role / Timing Role: Quad NC SPST analog switch routing differential audio paths with minimal crosstalk and THD. Use Value: 0.02% THD and −100dB crosstalk preserve stereo separation and SNR in battery-powered devices. |
Use Scenario: Multiplexing sensor outputs (thermocouples, strain gauges) into a single ADC channel in a portable DMM. IC Role / Device Role / Timing Role: Low-leakage, rail-to-rail analog switch enabling high-impedance signal transfer without gain error. Use Value: 0.1nA off-leakage and 4Ω RON prevent measurement drift and offset in µV-level sensing. |
| Automated Test Equipment | Relay Replacement Systems |
Use Scenario: Configuring signal paths in benchtop ATE for functional testing of mixed-signal ICs. IC Role / Device Role / Timing Role: High-speed, low-distortion analog switch providing sub-20ns path reconfiguration. Use Value: 20ns tON and matched RON enable repeatable timing margins and channel calibration across 4-switch banks. |
Use Scenario: Replacing electromechanical relays in programmable power supply output selection. IC Role / Device Role / Timing Role: Solid-state NC switch delivering infinite cycle life and zero contact bounce. Use Value: 4Ω RON and 0.2Ω matching ensure consistent load regulation vs. relay contact resistance degradation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4652EUE | Quad NO (not NC) configuration; identical RON, timing, and supply specs | Requires inverted control logic for same functional behavior; unsuitable where default-closed path is safety-critical | Select only if system design mandates default-open state and logic inversion is acceptable |
| ADG1411BRUZ | 4Ω RON at +5V, but +5V-only supply (not 1.8V–5.5V); higher 15ns tON, 0.5nA off-leakage | Lacks low-voltage operation and ultra-low leakage; better suited for industrial +5V systems than portable designs | Prefer MAX4651EUE for battery-powered or wide-VDD applications requiring <0.1nA leakage |
Compared with MAX4652EUE and ADG1411BRUZ, the MAX4651EUE uniquely combines normally closed topology, 1.8V minimum operation, and 0.1nA leakage - making it the only choice for fail-safe, low-power, high-precision analog routing where default continuity is mandatory.
Availability
MAX4651EUE is available at Aetrix Electronics and suitable for battery-powered systems, audio signal routing, low-voltage data-acquisition systems, sample-and-hold circuits, and communications circuits requiring stable component supply and long-term manufacturability.
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) 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 MAX4651/MAX4652/MAX4653 family was designed specifically for low-voltage, low-distortion analog signal routing in space- and power-constrained systems - emphasizing rail-to-rail operation, sub-5Ω on-resistance, and nanosecond switching.
FAQ
What is the default switch state of MAX4651EUE?
The MAX4651EUE features four normally closed (NC) SPST switches. When all IN1–IN4 inputs are logic low (≤0.8V), each COMx terminal is connected to its corresponding NCx terminal. Applying logic high (≥2.4V) opens the path. This fail-safe default-closed behavior is confirmed in the truth table and pin diagrams for MAX4651EUE specifically - distinguishing it from the NO variants MAX4652EUE and MAX4653EUE.
Does MAX4651EUE support rail-to-rail analog signals?
Yes, MAX4651EUE supports rail-to-rail analog signals from GND to V+, as explicitly stated in the General Description and verified in the Absolute Maximum Ratings and Electrical Characteristics tables. This allows full-swing signal handling without external level-shifting circuitry - a key advantage over many competing analog switches that limit input range to V+ −1V or similar.
What is the maximum operating temperature for MAX4651EUE?
The MAX4651EUE is rated for operation from −40°C to +85°C, as specified in the Ordering Information table and confirmed in the Absolute Maximum Ratings section. This industrial temperature range is guaranteed across all electrical parameters including RON, leakage, and switching speed - ensuring reliability in demanding embedded and portable environments.
Can MAX4651EUE operate from a 3.3V supply?
Yes, MAX4651EUE operates from a single +1.8V to +5.5V supply. At +3.3V, its on-resistance is 7Ω max (vs. 4Ω max at +5V), on-resistance flatness is 2.5Ω max, and logic thresholds adjust to VIH = 2.0V / VIL = 0.4V - all confirmed in the +3V Electrical Characteristics tables. This makes it ideal for modern 3.3V microcontroller interfacing.
Is the TSSOP-16 package of MAX4651EUE lead-free and RoHS compliant?
Yes, MAX4651EUE is manufactured in a lead-free, RoHS-compliant 16-pin TSSOP package, as documented in Maxim's official packaging information and environmental compliance statements. The device meets JEDEC J-STD-020 moisture sensitivity level (MSL) 1 rating and supports standard Pb-free reflow profiles without derating.
MAX4651EUE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- 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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