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Analog Devices Inc./Maxim Integrated MAX4639EUE+T
- Part No.:
- MAX4639EUE+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MAX4639EUE+T.pdf
- Description:
- IC SWITCH SP4TX2 3.5OHM 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:10,869
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Product details
Overview
MAX4639EUE+T from Maxim Integrated is a dual 4:1 CMOS analog multiplexer/demultiplexer in 16-pin TSSOP package, operating from +1.8V to +5.5V single supply or ±2.5V dual supplies. It delivers 3.5Ω on-resistance at +5V, −85dB crosstalk, 85MHz −3dB bandwidth, and guarantees break-before-make switching for rail-to-rail analog signal routing in low-voltage data-acquisition systems.
For engineers reviewing the MAX4639EUE+T datasheet, MAX4639EUE+T pinout, MAX4639EUE+T application, or MAX4639EUE+T equivalent, this page provides verified electrical parameters, functional pin mapping, real-world use cases in medical equipment and battery-powered instruments, and two validated alternative parts with documented technical and application differences.
Technical Context
The MAX4639EUE+T implements two independent 4:1 analog switch banks (COMA/NO1A–NO4A and COMB/NO1B–NO4B), each controlled by 2-bit BCD address inputs (A0, A1) and a shared enable (EN). All channels support bidirectional rail-to-rail signal handling and TTL/CMOS-compatible logic thresholds.
It features guaranteed 0.4Ω RON match between channels and 1Ω RON flatness over full signal range, enabling precision signal routing without gain error or distortion across channel selection. Switching is break-before-make with <1ns minimum interval, preventing momentary shorts during channel transitions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance (RON) | 3.5Ω at +5V supply - ensures minimal voltage drop and signal attenuation in precision analog paths |
| Crosstalk | −85dB at 1MHz - prevents interference between active and inactive channels in multi-signal routing |
| Off-Isolation | −75dB at 10MHz - maintains high signal integrity by suppressing leakage from off-channels to output |
| −3dB Bandwidth | 85MHz - supports high-fidelity routing of video, audio, and fast sensor signals without roll-off |
| Switching Time (tON/tOFF) | 18ns/7ns - enables rapid channel selection in automated test equipment and real-time control loops |
| Leakage Current | ±0.25nA at +25°C - preserves accuracy in high-impedance sensor front-ends and low-power battery systems |
| Supply Range | +1.8V to +5.5V single or ±2.5V dual - compatible with Li-ion, 3.3V, and 5V embedded systems without level-shifting |
Pinout & Package
MAX4639EUE+T is housed in a 16-pin TSSOP package (4.4mm × 5.0mm, 0.65mm pitch) with exposed pad not present (TQFN variants have EP; TSSOP does not).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4 (NO1A, NO2A, NO3A, NO4A) |
Bidirectional analog input (Bank A) | Four selectable inputs routed to COMA; supports rail-to-rail voltage swing up to V+ and down to V− |
| 5, 6, 7, 8 (NO1B, NO2B, NO3B, NO4B) |
Bidirectional analog input (Bank B) | Four independent inputs routed to COMB; electrically isolated from Bank A |
| 9, 10 (COMA, COMB) |
Bidirectional analog output (per bank) | Common node per 4:1 bank; must be externally connected to load or next stage |
| 11, 12 (A0, A1) |
Binary address inputs | Selects one of four channels per bank using standard 2-bit BCD decoding |
| 13 (EN) |
Active-high enable | When low, all switches open; simplifies cascading and global power gating |
| 14 (V−) |
Negative supply rail | Required for dual-supply operation; tied to GND for single-supply mode |
| 15 (V+) |
Positive supply rail | Supplies internal logic and switch bias; accepts +1.8V to +5.5V |
| 16 (GND) |
Ground reference | Logic and analog return path; must be low-impedance and star-connected near device |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail signal handling | Supports analog signals from V− to V+, eliminating clipping in ±2.5V or 0–5V systems |
| Guaranteed break-before-make | Ensures no overlap between channel closures, preventing short-circuits in multiplexed sensor arrays |
| 0.4Ω RON match between channels | Minimizes gain mismatch in differential or multi-channel measurement systems |
| 1Ω RON flatness over signal range | Maintains consistent channel resistance regardless of input voltage, reducing harmonic distortion |
| TTL/CMOS-compatible logic inputs | Accepts standard microcontroller GPIO outputs without external level shifters or pull-ups |
Applications
| Medical Instrumentation | Portable Data Acquisition |
|---|---|
|
Use Scenario: Routing ECG, EEG, or temperature sensor signals to a shared ADC in handheld diagnostic devices. IC Role / Device Role / Timing Role: Dual 4:1 analog mux selects among eight biopotential channels while maintaining signal fidelity and low power. Use Value: 3.5Ω RON and ±0.25nA leakage preserve microvolt-level signal integrity; +1.8V operation extends battery life. |
Use Scenario: Multiplexing multiple sensor outputs (thermocouple, RTD, strain gauge) into a single precision ADC in field-deployable loggers. IC Role / Device Role / Timing Role: Provides low-distortion, low-leakage analog switching with guaranteed RON matching for calibrated measurements. Use Value: 1Ω RON flatness and −85dB crosstalk prevent cross-channel interference and gain drift across temperature. |
| Audio Signal Routing | Automatic Test Equipment (ATE) |
|
Use Scenario: Switching line-level or headphone signals between sources and outputs in compact audio interfaces. IC Role / Device Role / Timing Role: Dual-bank architecture routes stereo pairs independently with matched timing and impedance. Use Value: 85MHz bandwidth preserves full audio spectrum (20Hz–20kHz) with <0.5% THD; rail-to-rail support handles ±2.5V op-amp outputs. |
Use Scenario: Configuring stimulus/sense paths across DUT pins in benchtop ATE systems requiring nanosecond switching. IC Role / Device Role / Timing Role: Enables high-speed channel reconfiguration with 7ns tOFF and break-before-make guarantee. Use Value: 18ns tON and <1ns tBBM allow sub-microsecond test sequencing; −75dB off-isolation prevents false readings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual 4:1 analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG1419BRUZ | Higher RON (4.7Ω @ +5V), wider supply (±5V to +16.5V), lower bandwidth (170MHz), no guaranteed break-before-make | Better suited for higher-voltage industrial I/O; less ideal for low-leakage medical sensing due to 2nA max leakage | Choose when extended supply range or higher bandwidth outweighs need for guaranteed BBM and ultra-low leakage |
| TS5A23159DRCR | Lower RON (0.9Ω @ +3.3V), narrower supply (+1.65V to +3.6V), smaller 10-pin WSON package, no dual-bank isolation | Optimized for space-constrained portable electronics but lacks independent COMA/COMB outputs | Prefer for compact consumer devices where dual-output independence is unnecessary and 3.3V-only operation is acceptable |
Compared with ADG1419BRUZ and TS5A23159DRCR, MAX4639EUE+T uniquely balances ultra-low leakage (±0.25nA), guaranteed break-before-make, dual isolated banks, and wide 1.8–5.5V operation-making it optimal for battery-powered medical and precision DAQ systems where signal integrity and reliability are non-negotiable.
Availability
MAX4639EUE+T is available at Aetrix Electronics and suitable for medical instrumentation, portable data-acquisition systems, and automatic test equipment requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for MAX4639EUE+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, designs high-performance analog and mixed-signal ICs for precision, power, and interface applications across industrial, medical, and communications markets.
The MAX4638/MAX4639 product line targets low-voltage, high-fidelity analog signal routing in battery-powered and space-constrained systems-emphasizing rail-to-rail operation, low leakage, and guaranteed switching behavior.
FAQ
What is the maximum supply voltage rating for MAX4639EUE+T?
The absolute maximum rating for V+ to V− is +6V. For reliable operation, the recommended single-supply range is +1.8V to +5.5V, and dual-supply range is ±2.5V. Exceeding these limits risks permanent damage, as confirmed in the Absolute Maximum Ratings table of the MAX4639EUE+T datasheet.
Does MAX4639EUE+T support true break-before-make switching?
Yes, MAX4639EUE+T guarantees break-before-make operation with a minimum tBBM of 1ns across the full temperature range (−40°C to +85°C), as specified in the Electrical Characteristics tables. This prevents momentary shorting between channels during address transitions.
Can MAX4639EUE+T operate from a single 3.3V supply?
Yes, MAX4639EUE+T operates reliably from +3.3V single supply (within its +1.8V to +5.5V range). At +3V, RON is guaranteed ≤6Ω, VIH is +2.0V, and leakage remains ≤±0.35nA - all verified in the +3.0V Electrical Characteristics section of the MAX4639EUE+T datasheet.
What is the function of the EN pin on MAX4639EUE+T?
The EN pin is an active-high enable input that globally disables all analog switches when driven low. When EN = low, all channels disconnect regardless of A0/A1 state - a feature used for power gating, system sleep modes, or cascading multiple MAX4639EUE+T devices in larger multiplexer trees.
Is the MAX4639EUE+T pinout compatible with other packages in the same family?
No - the MAX4639EUE+T (16-pin TSSOP) has a different pinout than the 16-pin TQFN (MAX4639ETE+T) and 20-pin TQFN (MAX4639ETP+T) variants. Pin functions are consistent, but physical layout differs; PCB layout must match the specific package footprint, as shown in the Pin Configurations section of the MAX4639EUE+T datasheet.
MAX4639EUE+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Switch Circuit:
- SP4T
- Multiplexer/Demultiplexer Circuit:
- 4:1
- Number of Circuits:
- 2
- On-State Resistance (Max):
- 3.5Ohm
- Channel-to-Channel Matching (ΔRon):
- 100mOhm
- Voltage - Supply, Single (V+):
- 1.8V ~ 5.5V
- Voltage - Supply, Dual (V±):
- ±2.5V
- Switch Time (Ton, Toff) (Max):
- 18ns, 7ns
- -3db Bandwidth:
- 85MHz
- Charge Injection:
- 13pC
- Channel Capacitance (CS(off), CD(off)):
- 9pF, 20pF
- Current - Leakage (IS(off)) (Max):
- 250pA
- Crosstalk:
- -85dB @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-TSSOP
MAX4639EUE+T FAQ
1.How can I place an order for MAX4639EUE+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4639EUE+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 MAX4639EUE+T reliable?
The price and inventory of MAX4639EUE+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4639EUE+T is usually 5 days.
3.What payment methods are accepted for MAX4639EUE+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4639EUE+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4639EUE+T?
MAX4639EUE+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4639EUE+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 MAX4639EUE+T?
For technical support, including MAX4639EUE+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4639EUE+T requirements.
6.How does Aetrix verify that MAX4639EUE+T is sourced from the original manufacturer or authorized distributors?
All MAX4639EUE+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 MAX4639EUE+T meets industry standards.
7.What is the process for return or replacement of MAX4639EUE+T?
All MAX4639EUE+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4639EUE+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 MAX4639EUE+T part is unused and in its original packaging.
Return procedure for MAX4639EUE+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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