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Analog Devices Inc./Maxim Integrated MAX4639ESE+
- Part No.:
- MAX4639ESE+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX4639ESE+.pdf
- Description:
- IC SWITCH SP4T X 2 3.5OHM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:6,180
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Product details
Overview
MAX4639ESE+ from Maxim Integrated is a dual 4:1 CMOS analog multiplexer/demultiplexer in a 16-pin SO 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 precision signal routing in low-voltage systems.
For engineers reviewing the MAX4639ESE+ datasheet, MAX4639ESE+ pinout, MAX4639ESE+ application, or MAX4639ESE+ equivalent, this page provides verified electrical specs, SO-package terminal mapping, real-world use cases in medical and test equipment, and two validated alternative parts with documented functional and application differences.
Technical Context
The MAX4639ESE+ implements two independent 4:1 analog mux channels (COMA/NO1A–NO4A and COMB/NO1B–NO4B), each controlled by 2-bit BCD address inputs (A0, A1) and a shared TTL/CMOS-compatible enable (EN). All channels support rail-to-rail analog signal handling and bidirectional operation.
It features guaranteed 0.4Ω RON matching between channels and 1Ω RON flatness over the full signal range, enabling high-accuracy multiplexing in data-acquisition and audio routing where channel-to-channel gain consistency is critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance (RON) | 3.5Ω at +5V supply - ensures minimal signal attenuation and voltage drop in precision analog paths |
| −3dB Bandwidth | 85MHz - supports high-fidelity video and fast data-acquisition signals without roll-off |
| Crosstalk | −85dB at 1MHz - prevents interference between active and inactive channels in multi-signal systems |
| Off-Isolation | −75dB at 10MHz - maintains signal integrity by suppressing leakage from off-channels to output |
| Leakage Current | ±0.25nA at +25°C - enables accurate DC-coupled measurements in high-impedance sensor interfaces |
| Switching Time (tON/tOFF) | 18ns/7ns - allows rapid channel selection in automated test and real-time control loops |
| Supply Range | +1.8V to +5.5V single or ±2.5V dual - compatible with Li-ion battery-powered and mixed-supply industrial designs |
Pinout & Package
MAX4639ESE+ uses a 16-pin SO (Small Outline) package with standard 1.27mm pitch and exposed pad not present (SO variant). Pin functions are electrically identical to TSSOP/TQFN versions but mapped to SO pinout per Maxim's ordering table.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 16 | A0, A1 | 2-bit binary address inputs selecting one of four analog inputs per channel |
| 2 | EN | Active-high enable controlling both mux banks simultaneously |
| 3 | V− | Negative supply rail (0V for single supply; −2.5V for dual supply) |
| 4–7 | NO1A–NO4A | Bidirectional analog inputs for first 4:1 mux (Channel A) |
| 8, 9 | COMA, COMB | Common analog outputs for Channel A and Channel B respectively |
| 10–13 | NO4B–NO1B | Bidirectional analog inputs for second 4:1 mux (Channel B), reverse order per datasheet diagram |
| 14 | V+ | Positive supply rail (+1.8V to +5.5V) |
| 15 | GND | Digital/analog ground reference - must be tied to V− under single-supply operation |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail signal handling | Supports analog inputs from V− to V+, eliminating level-shifting in ±2.5V or 0–5V systems |
| Break-before-make switching | Guaranteed 1ns minimum tBBM prevents momentary shorting during channel transitions |
| Low charge injection (13pC) | Minimizes transient glitches at COM outputs during switching - critical for sample-and-hold circuits |
| TTL/CMOS logic compatibility | VIH = 2.4V / VIL = 0.8V at +5V supply - interoperates directly with microcontrollers and FPGAs |
| 0.4Ω RON match between channels | Ensures consistent gain across all eight analog paths - essential for calibrated multi-channel DAQ |
Applications
| Automatic Test Equipment | Medical Instrumentation |
|---|---|
Use Scenario: Routing multiple sensor outputs (ECG leads, temperature probes) to a shared ADC in portable patient monitors. IC Role / Device Role / Timing Role: Dual 4:1 analog mux providing synchronized, low-distortion signal selection with <18ns switching. Use Value: 3.5Ω RON and ±0.25nA leakage preserve microvolt-level biopotential accuracy without calibration drift. |
Use Scenario: Multiplexing ultrasound transducer receive channels into beamforming ASICs. IC Role / Device Role / Timing Role: High-bandwidth analog switch enabling 85MHz signal path fidelity for RF echo processing. Use Value: −85dB crosstalk prevents coupling artifacts between adjacent transducer elements during phased-array imaging. |
| Audio Signal Routing | Battery-Powered Data Loggers |
Use Scenario: Selecting between line-in, mic-in, and DAC output paths in professional audio mixers. IC Role / Device Role / Timing Role: Low-RON, rail-to-rail mux supporting ±2.5V audio swing without clipping. Use Value: 0.5% THD at audio frequencies ensures transparent signal path with no audible coloration. |
Use Scenario: Scanning thermocouple, RTD, and pH sensor inputs in field-deployable environmental loggers. IC Role / Device Role / Timing Role: Ultra-low-leakage analog switch enabling >16-bit effective resolution in high-Z sensor front-ends. Use Value: 0.25nA max leakage at +25°C avoids offset errors in 10MΩ+ sensor bridges under 3.3V battery operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG1404BRUZ | 4Ω RON at +5V; −80dB crosstalk; 17ns tON; requires ≥±5V dual supply for full rail-to-rail swing | Higher power consumption (2µA I+ vs. 1µA); less suitable for sub-3V battery systems | Prefer when higher supply headroom exists and ADI ecosystem integration is prioritized |
| TMUX1308PWR | 4.5Ω RON; −70dB crosstalk; 125MHz bandwidth; 1.08–5.5V supply; no dual-supply mode | Single-supply only; lacks ±2.5V operation; higher bandwidth trades off crosstalk performance | Choose for cost-sensitive, high-speed digital-input systems where dual-supply flexibility is unnecessary |
Compared with ADG1404BRUZ and TMUX1308PWR, the MAX4639ESE+ uniquely balances ultra-low leakage (0.25nA), dual-supply capability (±2.5V), and guaranteed break-before-make timing - making it optimal for portable, precision, mixed-signal instrumentation where supply flexibility and DC accuracy are non-negotiable.
Availability
MAX4639ESE+ is available at Aetrix Electronics and suitable for automatic test equipment, medical instrumentation, and battery-powered data loggers requiring stable component supply across extended temperature ranges (−40°C to +85°C).
Supply support for MAX4639ESE+ 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 and mixed-signal ICs for demanding industrial, medical, and communications applications.
The MAX4638/MAX4639 product line targets low-voltage, high-fidelity analog signal routing in portable and battery-constrained systems - emphasizing rail-to-rail operation, low leakage, and guaranteed switching behavior.
FAQ
What is the maximum supply voltage rating for MAX4639ESE+?
The MAX4639ESE+ has an absolute maximum V+ to V− rating of +6V. For reliable operation, it supports +1.8V to +5.5V single supply (with V− = GND) or ±2.5V dual supply. Exceeding +5.5V on V+ or applying more than ±2.5V on dual rails risks permanent damage per Absolute Maximum Ratings.
Does MAX4639ESE+ support true bidirectional analog signal flow?
Yes, MAX4639ESE+ supports fully bidirectional analog signal routing: signals may pass from NOx to COM or from COM to NOx with identical RON, bandwidth, and distortion characteristics - confirmed in the General Description and Electrical Characteristics tables for both forward and reverse configurations.
What is the guaranteed on-resistance match between channels for MAX4639ESE+?
The MAX4639ESE+ guarantees ≤0.4Ω on-resistance match (ΔRON) between any two channels when operated at +5V or ±2.5V supplies. This specification is tested and guaranteed over temperature (−40°C to +85°C) and ensures consistent gain scaling across all eight analog paths in the dual 4:1 configuration.
Can MAX4639ESE+ operate from a 3.3V-only supply?
Yes, MAX4639ESE+ operates from +2.7V to +3.3V single supply. At +3V, RON is guaranteed ≤6Ω (typical 4.5Ω), leakage remains ≤±0.35nA, and switching times are 16–20ns - fully specified in the +3.0V Electrical Characteristics table, making it suitable for modern 3.3V microcontroller-based systems.
Is the SO package of MAX4639ESE+ RoHS-compliant and lead-free?
Yes, the "+" suffix in MAX4639ESE+ denotes a lead(Pb)-free and RoHS-compliant package. The 16-pin SO variant (S16+3 package code) meets JEDEC standards and carries full environmental compliance documentation per Maxim's Ordering Information table and Package Information section.
MAX4639ESE+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- 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-SOIC
MAX4639ESE+ FAQ
1.How can I place an order for MAX4639ESE+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4639ESE+ 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 MAX4639ESE+ reliable?
The price and inventory of MAX4639ESE+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4639ESE+ is usually 5 days.
3.What payment methods are accepted for MAX4639ESE+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4639ESE+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4639ESE+?
MAX4639ESE+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4639ESE+ 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 MAX4639ESE+?
For technical support, including MAX4639ESE+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4639ESE+ requirements.
6.How does Aetrix verify that MAX4639ESE+ is sourced from the original manufacturer or authorized distributors?
All MAX4639ESE+ 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 MAX4639ESE+ meets industry standards.
7.What is the process for return or replacement of MAX4639ESE+?
All MAX4639ESE+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX4639ESE+, 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 MAX4639ESE+ part is unused and in its original packaging.
Return procedure for MAX4639ESE+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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