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Analog Devices Inc./Maxim Integrated MAX4639ESE+T
- Part No.:
- MAX4639ESE+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX4639ESE+T.pdf
- Description:
- IC SWITCH SP4T X 2 3.5OHM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,281
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Product details
Overview
MAX4639ESE+T 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 rail-to-rail analog signal routing in low-voltage data-acquisition systems.
For engineers reviewing the MAX4639ESE+T datasheet, MAX4639ESE+T pinout, MAX4639ESE+T application, or MAX4639ESE+T equivalent, this page provides verified electrical parameters, SO-package terminal mapping, dual-channel analog switching context, and real-world selection guidance for portable instrumentation and medical signal routing.
Technical Context
The MAX4639ESE+T implements two independent 4:1 analog muxes (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 with guaranteed break-before-make timing (1ns min) to prevent momentary shorts during channel transitions.
Its BiCMOS process enables low leakage (±0.25nA at +25°C), fast switching (tON = 18ns, tOFF = 7ns), and high dynamic performance: −75dB off-isolation at 10MHz and −85dB crosstalk between any two off-channels at 1MHz - critical for precision multiplexed sensor front-ends.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance (RON) | 3.5Ω at +5V supply - ensures minimal voltage drop and gain error in 12-bit+ data acquisition paths |
| −3dB Bandwidth | 85MHz - supports high-fidelity routing of audio, video, and wideband sensor signals without attenuation |
| Crosstalk | −85dB at 1MHz - prevents coupling between active and inactive channels in multi-signal monitoring systems |
| Off-Isolation | −75dB at 10MHz - maintains signal integrity when adjacent channels carry high-frequency interference |
| Leakage Current | ±0.25nA at +25°C - preserves accuracy in high-impedance sensor interfaces (e.g., pH, thermopile) |
| Switching Time | tON = 18ns / tOFF = 7ns - enables rapid channel scanning in automated test equipment with sub-100ns cycle times |
| Supply Range | +1.8V to +5.5V single or ±2.5V dual - compatible with Li-ion battery-powered designs and mixed-supply industrial systems |
Pinout & Package
MAX4639ESE+T is housed in a 16-pin SO (Small Outline) package with standard 1.27mm pitch and gull-wing leads. The package is RoHS-compliant, lead-free, and rated for −40°C to +85°C operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4 | NO1A, NO2A, NO3A, NO4A | Bidirectional analog inputs for first 4:1 mux - connect to sensors, transducers, or signal sources |
| 5, 6, 7, 8 | NO1B, NO2B, NO3B, NO4B | Bidirectional analog inputs for second 4:1 mux - enables parallel signal routing without cross-talk |
| 9, 10 | COMA, COMB | Common analog outputs - drive ADC inputs, op-amp stages, or signal processors independently |
| 11, 12 | A0, A1 | 2-bit binary address inputs - select active channel per mux using standard TTL/CMOS logic levels |
| 13 | EN | Active-high enable - disables both muxes simultaneously to isolate signal paths during power-down or fault conditions |
| 14 | V− | Negative supply input - tied to GND for single-supply operation; required for bipolar signal handling |
| 15 | V+ | Positive supply input - powers internal logic and switch array; supports 1.8V–5.5V range |
| 16 | GND | Analog/digital ground reference - must be low-impedance connection to minimize noise coupling into analog paths |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog signal handling | Supports full V− to V+ input/output swing - eliminates level-shifting circuitry in battery-powered medical devices |
| Guaranteed break-before-make | 1ns minimum interval prevents short-circuits during channel switching - essential for safe relay replacement in PLC I/O modules |
| 0.4Ω RON match between channels | Ensures consistent gain and offset across all 4 channels - critical for calibrated multi-sensor data loggers |
| 1Ω RON flatness over signal range | Maintains linear transfer function across entire analog input span - improves THD (<0.5%) in audio routing applications |
| TTL/CMOS-compatible control inputs | VIH = 2.4V / VIL = 0.8V at +5V - interoperates directly with microcontrollers and FPGAs without level translators |
Applications
| Automatic Test Equipment | Low-Voltage Data-Acquisition Systems |
|---|---|
Use Scenario: Multiplexing multiple DUT signals to a shared high-speed digitizer in benchtop ATE. IC Role / Device Role / Timing Role: Dual 4:1 analog mux routing sensor outputs, reference voltages, and calibration sources under microcontroller control. Use Value: 85MHz bandwidth preserves signal fidelity up to 20MHz sine waves; 18ns tON enables ≤100ns per-channel sampling in 1MSPS systems. |
Use Scenario: Selecting among 8 thermocouple or RTD inputs in a portable environmental monitor. IC Role / Device Role / Timing Role: Low-leakage (±0.25nA), rail-to-rail analog switch front-end feeding a precision sigma-delta ADC. Use Value: 3.5Ω RON minimizes self-heating errors; −85dB crosstalk prevents cross-channel contamination in <100µV measurements. |
| Audio and Video Signal Routing | Medical Equipment |
Use Scenario: Switching stereo line-level audio or composite video between multiple sources in a portable media hub. IC Role / Device Role / Timing Role: Dual-channel analog mux handling bidirectional audio paths with simultaneous left/right routing. Use Value: 85MHz bandwidth supports HD video (720p/1080i); −75dB off-isolation suppresses ghosting and sync pulse bleed. |
Use Scenario: Routing ECG, EEG, or EMG electrode signals to differential amplifiers in a wearable diagnostic patch. IC Role / Device Role / Timing Role: Low-noise, low-leakage analog switch isolating high-impedance biopotential inputs during channel scanning. Use Value: ±0.25nA leakage avoids DC offset drift; break-before-make prevents electrode shorting that could induce patient microshock. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG732BRUZ | 32-channel single-pole, 4.5Ω RON at +5V, 16-TSSOP, no dual-mux architecture | Requires external decoding logic for 4:1 functionality; higher channel count suits larger BOM consolidation | Choose ADG732BRUZ when scaling beyond 8 total inputs or needing SPI-controlled channel selection |
| TS5A23157DGSR | Dual SPDT, 0.9Ω RON at +3.3V, 10-pin VSSOP, no address decoding or enable pin | Lacks BCD addressing - requires GPIO-per-channel control; better for simple 2×2 switching than sequential scanning | Choose TS5A23157DGSR for ultra-low RON in compact layouts where microcontroller GPIOs are available for direct control |
Compared with ADG732BRUZ and TS5A23157DGSR, the MAX4639ESE+T uniquely integrates dual 4:1 decoding, enable control, and guaranteed break-before-make in a single SO package - reducing PCB area and firmware complexity for portable multi-sensor systems requiring synchronized channel selection.
Availability
MAX4639ESE+T is available at Aetrix Electronics and suitable for automatic test equipment, low-voltage data-acquisition systems, and medical equipment requiring stable component supply across extended production lifecycles.
Supply support for MAX4639ESE+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 precision analog, mixed-signal, and power-management ICs for industrial, medical, and communications applications.
The MAX4639 belongs to Maxim's low-voltage analog switch family, engineered for rail-to-rail signal integrity, ultra-low leakage, and fast switching in battery-constrained and high-accuracy measurement systems.
FAQ
What is the maximum supply voltage rating for MAX4639ESE+T?
The MAX4639ESE+T has an absolute maximum V+ to V− rating of +6V. When operated from a single supply, V− must be connected to GND, and V+ must not exceed +5.5V. Exceeding these limits risks permanent damage, as confirmed in the Absolute Maximum Ratings table of the official datasheet.
Does MAX4639ESE+T support dual-supply operation with asymmetric rails?
No. The MAX4639ESE+T is specified only for symmetric dual supplies (±2.5V). The datasheet explicitly defines operation at V+ = +2.5V ±10% and V− = −2.5V ±10%. Asymmetric configurations (e.g., +3.3V/−1.8V) are not characterized or guaranteed, and may violate internal biasing requirements.
Can MAX4639ESE+T handle negative analog signals in single-supply mode?
No. In single-supply mode (V− = GND), the analog signal range is strictly 0V to V+, per the Electrical Characteristics table. Negative signals will forward-bias internal protection diodes and cause distortion or damage. For bipolar signals, ±2.5V dual-supply operation is mandatory.
What is the guaranteed on-resistance match between channels for MAX4639ESE+T?
The MAX4639ESE+T guarantees ΔRON ≤ 0.4Ω between any two channels at +25°C and +5V supply, as stated in the Features section and confirmed in the Electrical Characteristics table under "On-Resistance Match Between Channels." This ensures consistent gain across all four inputs of each mux.
Is the enable pin (EN) of MAX4639ESE+T 5V-tolerant when powered from a 3.3V supply?
Yes. The MAX4639ESE+T's EN pin accepts VIH = 2.0V minimum (at +3V supply), and its absolute maximum input voltage is +6V regardless of V+. Therefore, a 5V logic signal applied to EN while V+ = +3.3V is within specification and will reliably enable the device without external level shifting.
MAX4639ESE+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-SOIC
MAX4639ESE+T FAQ
1.How can I place an order for MAX4639ESE+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4639ESE+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 MAX4639ESE+T reliable?
The price and inventory of MAX4639ESE+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4639ESE+T is usually 5 days.
3.What payment methods are accepted for MAX4639ESE+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4639ESE+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4639ESE+T?
MAX4639ESE+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4639ESE+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 MAX4639ESE+T?
For technical support, including MAX4639ESE+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4639ESE+T requirements.
6.How does Aetrix verify that MAX4639ESE+T is sourced from the original manufacturer or authorized distributors?
All MAX4639ESE+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 MAX4639ESE+T meets industry standards.
7.What is the process for return or replacement of MAX4639ESE+T?
All MAX4639ESE+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4639ESE+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 MAX4639ESE+T part is unused and in its original packaging.
Return procedure for MAX4639ESE+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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