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Analog Devices Inc./Maxim Integrated MAX338MSE/PR3+
- Part No.:
- MAX338MSE/PR3+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX338MSE/PR3+.pdf
- Description:
- IC MUX 8:1 400OHM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,688
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Product details
Overview
The MAX338MSE/PR3+ from Maxim Integrated is an 8-channel, single-ended CMOS analog multiplexer designed to route one of eight bidirectional analog inputs to a common COM terminal under 3-bit binary address control. It features ≤400Ω on-resistance, <20pA NO-off leakage at +25°C, and 1.5pC typical charge injection-enabling precision signal routing in high-impedance data-acquisition systems operating across ±4.5V to ±20V dual supplies or +4.5V to +30V single supply.
For engineers reviewing the MAX338MSE/PR3+ datasheet, MAX338MSE/PR3+ pinout, MAX338MSE/PR3+ application, or MAX338MSE/PR3+ equivalent, key selection criteria include guaranteed low leakage over -55°C to +125°C, rail-to-rail analog signal handling up to ±15V, TTL/CMOS-compatible enable and address inputs, and pin compatibility with industry-standard DG508A for drop-in upgrades in military and aerospace signal conditioning circuits.
Technical Context
The MAX338MSE/PR3+ implements fully decoded CMOS switch logic with break-before-make timing (10–140ns) and supports both unipolar and bipolar operation. Its silicon-gate 44V process enables robust ESD protection (>2000V per Method 3015.7) and stable performance across extreme temperatures.
All digital inputs-including EN, A0, A1, and A2-are TTL-compatible over full supply range (±4.5V to ±18V) and temperature (-55°C to +125°C). Analog channel conduction is bidirectional, with matched on-resistance (≤10Ω max mismatch) and low crosstalk (-92dB at 100kHz), making it suitable for multiplexed sample-and-hold and precision sensor front-ends.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance | ≤400Ω max at ±15V, enabling <1LSB error in 12-bit systems with 10kΩ source impedance |
| NO-Off Leakage | <20pA at +25°C, critical for maintaining accuracy in high-Z sensor interfaces and integrator circuits |
| Charge Injection | 1.5pC typ, minimizing voltage glitch on hold capacitors in sample-and-hold applications |
| Supply Range | ±4.5V to ±20V dual or +4.5V to +30V single-supports rail-to-rail analog signals up to ±15V |
| Transition Time | <500ns, ensuring fast channel switching for real-time test equipment and comms channel selection |
| Operating Temp | -55°C to +125°C, qualified for military-grade guidance, control, and avionics systems |
| ESD Protection | >2000V per Method 3015.7, reducing need for external protection in ruggedized PCB layouts |
Pinout & Package
MAX338MSE/PR3+ uses a 16-pin Narrow SO (Small Outline) package with exposed pad (EP) connected to V+. Pin functions are electrically identical to standard MAX338 variants and validated per Maxim's official pin configuration diagrams.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4, 5, 6, 7, 9, 10, 11, 12 | NO1–NO8 | Bidirectional analog input terminals; each connects to COM when selected; rated for ±15V signal swing |
| 8 | COM | Common bidirectional analog output; serves as input or output depending on signal flow direction |
| 13 | V+ | Positive supply input; must be ≥+4.5V (single) or ≤+20V (dual); EP tied to this pin |
| 3 | V- | Negative supply input; must be ≤-4.5V (dual); connect to GND for single-supply operation |
| 14 | GND | Analog/digital reference ground; separate from power return paths in mixed-signal layouts |
| 15, 16, 14 | A0, A1, A2 | 3-bit binary address inputs; TTL/CMOS-compatible; determine which NOx connects to COM |
| 2 | EN | Active-high enable; disables all switches when low; reduces supply current to ≤150µA in shutdown |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail signal handling | Supports analog inputs from V- to V+, eliminating level-shifting in ±15V systems |
| Guaranteed low charge injection | 1.5pC typ ensures sub-1mV hold-step error in 100pF sample capacitors |
| Plug-in DG508A upgrade | PIN-compatible replacement with improved leakage, ESD, and charge injection specs |
| Wide temperature qualification | Specified and tested over -55°C to +125°C for MIL-STD-883 Class B applications |
| Bidirectional conduction | Enables use as mux or demux without signal polarity constraints |
Applications
| Data-Acquisition Systems | Test Equipment |
|---|---|
|
Use Scenario: Multiplexing outputs from 8 precision temperature sensors into a shared ADC channel. IC Role / Device Role / Timing Role: Analog multiplexer selecting one sensor per conversion cycle; operates at ≤10kHz switching rate. Use Value: Ultra-low off-leakage (<20pA) prevents cross-channel contamination; on-resistance matching (≤10Ω) ensures consistent gain across channels. |
Use Scenario: Routing calibration reference voltages and DUT signals to a shared precision voltmeter. IC Role / Device Role / Timing Role: Signal path selector with break-before-make timing (10–140ns) to prevent short-circuits during reconfiguration. Use Value: 1.5pC charge injection minimizes settling error; rail-to-rail support handles ±10V references without attenuation. |
| Military Radios | Guidance and Control Systems |
|
Use Scenario: Switching between multiple RF front-end gain stages and antenna ports in HF/VHF transceivers. IC Role / Device Role / Timing Role: High-isolation analog switch (−75dB off-isolation) isolating receive paths during transmit bursts. Use Value: −92dB crosstalk prevents intermodulation; ESD >2000V withstands harsh EMI environments without protection diodes. |
Use Scenario: Selecting inertial measurement unit (IMU) axis outputs for telemetry encoding in missile guidance modules. IC Role / Device Role / Timing Role: Ruggedized signal router operating continuously at −55°C to +125°C with no derating. Use Value: Qualified for extended temperature range; low on-resistance drift ensures stable scaling across thermal cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DG508A | Higher NO-off leakage (100pA vs. <20pA), no ESD rating, wider on-resistance spread (±50Ω) | Limited to commercial temp (0°C to +70°C); unsuitable for precision or extended-temp designs | Only consider if legacy footprint reuse is mandatory and leakage/ESD requirements are relaxed. |
| MAX328 | Lower leakage (5pA) and charge injection (0.5pC), but higher on-resistance (1.2kΩ max) | Better for ultra-high-Z integrators; worse for driving 10kΩ+ loads or fast settling | Choose MAX328 only when leakage dominates design margin and speed/resistance are secondary. |
Compared with DG508A and MAX328, the MAX338MSE/PR3+ delivers optimal balance of low leakage, low charge injection, wide supply range, and military-grade temperature operation-making it the preferred choice for new designs requiring reliability and precision in demanding analog signal routing.
Availability
MAX338MSE/PR3+ is available at Aetrix Electronics and suitable for data-acquisition systems, military radio signal conditioning, and guidance-and-control subsystems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX338MSE/PR3+ 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 semiconductor company specializing in high-performance analog, mixed-signal, and power-management ICs for industrial, automotive, communications, and computing markets.
The MAX338 series belongs to Maxim's precision analog multiplexer product line, engineered specifically for low-leakage, low-charge-injection signal routing in military, aerospace, and test instrumentation applications.
FAQ
What is the maximum analog signal voltage range supported by the MAX338MSE/PR3+?
The MAX338MSE/PR3+ supports analog signals from V− to V+, with absolute maximum ratings of −0.3V to +44V on V+ and −0.3V to +25V on GND. Under standard ±15V dual-supply operation, it handles rail-to-rail signals from −15V to +15V-verified across its full −55°C to +125°C operating range. This makes MAX338MSE/PR3+ suitable for high-dynamic-range sensor interfaces without external level shifting.
Is the MAX338MSE/PR3+ pin-compatible with the DG508A?
Yes, the MAX338MSE/PR3+ is explicitly documented as a plug-in upgrade for the DG508A, sharing identical 16-pin Narrow SO pinout and function mapping. All pins-including NO1–NO8, COM, EN, A0–A2, V+, V−, and GND-align directly. However, MAX338MSE/PR3+ improves upon DG508A with lower leakage, lower charge injection, and enhanced ESD protection, requiring no PCB changes for drop-in replacement.
What is the guaranteed on-resistance matching between channels for the MAX338MSE/PR3+?
The MAX338MSE/PR3+ guarantees on-resistance matching of ≤10Ω maximum between any two channels at +25°C, and ≤15Ω across the full −55°C to +125°C temperature range. This tight matching ensures consistent gain and minimal channel-to-channel error in multiplexed amplifier or filter networks-critical for precision measurement systems where ratio-metric accuracy matters more than absolute resistance value.
Does the MAX338MSE/PR3+ support single-supply operation?
Yes, the MAX338MSE/PR3+ operates from a single +4.5V to +30V supply. In this configuration, V− must be connected to GND, and the analog signal range becomes 0V to V+. For example, with +12V supply, signals from 0V to +12V are fully supported. The device maintains specified leakage, on-resistance, and switching performance under single-supply conditions-confirmed in the Electrical Characteristics table for V+ = +12V, V− = 0V.
What is the purpose of the exposed pad (EP) on the MAX338MSE/PR3+ package?
The exposed pad on the MAX338MSE/PR3+ 16-pin Narrow SO package is electrically connected to V+ and must be soldered to a V+-referenced copper pour on the PCB. This improves thermal dissipation and reduces package inductance, supporting reliable operation at maximum junction temperature (150°C) and enhancing high-frequency noise immunity. Maxim's land pattern documentation specifies direct connection to V+-not GND or floating-per the official package drawing.
MAX338MSE/PR3+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Active
- Switch Circuit:
- -
- Multiplexer/Demultiplexer Circuit:
- 8:1
- Number of Circuits:
- 1
- On-State Resistance (Max):
- 400Ohm
- Channel-to-Channel Matching (ΔRon):
- 4Ohm (Typ)
- Voltage - Supply, Single (V+):
- 4.5V ~ 30V
- Voltage - Supply, Dual (V±):
- ±4.5V ~ 20V
- Switch Time (Ton, Toff) (Max):
- 500ns, 500ns
- -3db Bandwidth:
- -
- Charge Injection:
- 1.5pC
- Channel Capacitance (CS(off), CD(off)):
- 3pF, 11pF
- Current - Leakage (IS(off)) (Max):
- 20pA
- Crosstalk:
- -92dB @ 100kHz
- Operating Temperature:
- -55°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
MAX338MSE/PR3+ FAQ
1.How can I place an order for MAX338MSE/PR3+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX338MSE/PR3+ 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 MAX338MSE/PR3+ reliable?
The price and inventory of MAX338MSE/PR3+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX338MSE/PR3+ is usually 5 days.
3.What payment methods are accepted for MAX338MSE/PR3+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX338MSE/PR3+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX338MSE/PR3+?
MAX338MSE/PR3+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX338MSE/PR3+ 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 MAX338MSE/PR3+?
For technical support, including MAX338MSE/PR3+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX338MSE/PR3+ requirements.
6.How does Aetrix verify that MAX338MSE/PR3+ is sourced from the original manufacturer or authorized distributors?
All MAX338MSE/PR3+ 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 MAX338MSE/PR3+ meets industry standards.
7.What is the process for return or replacement of MAX338MSE/PR3+?
All MAX338MSE/PR3+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX338MSE/PR3+, 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 MAX338MSE/PR3+ part is unused and in its original packaging.
Return procedure for MAX338MSE/PR3+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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