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Analog Devices Inc./Maxim Integrated MAX338ESE+T
- Part No.:
- MAX338ESE+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX338ESE+T.pdf
- Description:
- IC MUX 8:1 400OHM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,374
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Product details
Overview
MAX338ESE+T 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 output 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 data-acquisition systems operating from ±4.5V to ±20V or +4.5V to +30V supplies.
For engineers reviewing the MAX338ESE+T datasheet, MAX338ESE+T pinout, MAX338ESE+T application, or MAX338ESE+T equivalent, key selection criteria include rail-to-rail analog signal handling (±15V), TTL/CMOS-compatible enable and address inputs, guaranteed low leakage across -40°C to +85°C, and pin-compatibility with DG508A for drop-in upgrades in test equipment and military radios.
Technical Context
The MAX338ESE+T implements a monolithic silicon-gate CMOS switch matrix with integrated decode logic, supporting both multiplexing and demultiplexing functions. Its architecture ensures symmetrical conduction (bidirectional current flow), break-before-make switching (10–140ns interval), and rail-to-rail analog signal range up to ±15V with dual supplies.
All digital inputs-including EN, A0, A1, and A2-are TTL-compatible over full temperature and supply ranges (±4.5V to ±18V), while internal ESD protection exceeds 2000V per Method 3015.7. The device is fabricated using Maxim's 44V process, enabling robust operation with unbalanced supplies (e.g., +24V/–5V) without performance degradation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance | ≤400Ω max at ±15V, ensuring minimal voltage drop and gain error in precision sensor or DAC/ADC interface paths |
| NO-Off Leakage | <20pA at +25°C, critical for high-impedance sample-and-hold and low-current measurement circuits |
| Charge Injection | 1.5pC typ, limiting voltage glitch on COM node during channel switching in integrator or filter applications |
| Transition Time | <500ns, supporting multiplexed sampling rates up to ~1MHz in automated test equipment |
| Analog Signal Range | ±15V with dual supplies, enabling direct interfacing with industrial ±10V sensors and legacy instrumentation |
| Supply Range | +4.5V to +30V single or ±4.5V to ±20V dual, allowing flexible power architecture in mixed-signal embedded systems |
| Enable Turn-On Time | 160–500ns, ensuring deterministic timing control when synchronizing with external ADC conversion triggers |
Pinout & Package
MAX338ESE+T is housed in a 16-pin narrow SOIC (Small Outline Integrated Circuit) package with standard 1.27mm pitch and RoHS-compliant lead-free finish (+T suffix). The package is surface-mountable and thermally rated for industrial temperature operation (–40°C to +85°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | V− | Negative supply rail input; must be connected for dual-supply operation or tied to GND for single-supply use |
| 2–7 | NO1–NO6 | Bidirectional analog input terminals; support ±15V signal swing and conduct equally in both directions |
| 8 | COM | Common analog output terminal; serves as mux output or demux input with rail-to-rail capability |
| 9–12 | NO8–NO5 | Bidirectional analog input terminals; identical electrical specs to NO1–NO6; numbered non-sequentially per layout |
| 13 | V+ | Positive supply rail input; supports up to +30V in single-supply mode or +20V in dual-supply mode |
| 14 | GND | Digital ground reference; decoupling capacitor required near V+ and V− pins for noise immunity |
| 15 | A0 | LSB address input; TTL/CMOS-compatible (0.8V–2.4V thresholds); controls channel selection bit 0 |
| 16 | EN | Active-high enable input; disables all switches when low, reducing system power and crosstalk in standby |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail signal handling | Supports analog signals from V− to V+ (e.g., –15V to +15V), eliminating level-shifting requirements in bipolar sensor interfaces |
| Guaranteed low charge injection | 1.5pC typical enables accurate DC-coupled switching in integrators and zero-drift amplifier front-ends |
| Plug-in upgrade for DG508A | PIN-compatible replacement with improved leakage (<20pA vs. >100pA) and ESD rating (>2000V vs. unspecified), requiring no PCB changes |
| TTL/CMOS logic compatibility | Valid input thresholds (0.8V/2.4V) across full temperature and supply range simplify interface with microcontrollers and FPGAs |
| Low on-resistance matching | ≤10Ω max mismatch between channels ensures consistent gain and offset across multiplexed sensor channels |
Applications
| Data-Acquisition Systems | Test Equipment |
|---|---|
Use Scenario: Multiplexing outputs from 8 pressure, temperature, and strain sensors into a single 16-bit SAR ADC. IC Role / Device Role / Timing Role: Analog signal router selecting one sensor per conversion cycle; controlled by MCU GPIOs with 500ns transition time. Use Value: Enables cost-effective channel expansion without adding ADCs; ≤400Ω RON minimizes gain error, while <20pA leakage preserves accuracy in high-Z sensor bridges. |
Use Scenario: Automated switching of calibration references, DUT signals, and measurement paths in benchtop multimeters. IC Role / Device Role / Timing Role: Precision signal path selector with enable-controlled isolation; synchronized to test sequence controller. Use Value: Break-before-make switching prevents short-circuits during reconfiguration; >2000V ESD protection withstands repeated probe contact in lab environments. |
| Military Radios | Guidance and Control Systems |
Use Scenario: Routing RF front-end LO signals, IF paths, and audio I/O between multiple transceiver modules in ruggedized comms gear. IC Role / Device Role / Timing Role: High-reliability analog switch operating across –40°C to +85°C; enabled only during active signal routing phases. Use Value: Guaranteed –40°C to +85°C performance and 44V process tolerance ensure stable operation under thermal cycling and voltage transients in airborne platforms. |
Use Scenario: Selecting among redundant inertial measurement unit (IMU) outputs or GPS timing references in flight control computers. IC Role / Device Role / Timing Role: Fault-tolerant signal selector with low leakage and predictable switching behavior under vibration and radiation exposure. Use Value: <1.5pC charge injection prevents timing jitter in phase-sensitive navigation loops; pin-compatibility with DG508A allows legacy system upgrades without redesign. |
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 specified charge injection, lower ESD rating, same pinout | Legacy designs where leakage and charge injection are less critical; not suitable for precision sample-and-hold | Select MAX338ESE+T for new designs requiring lower leakage, guaranteed charge injection, and enhanced ESD robustness. |
| MAX328 | Lower leakage (<5pA) and charge injection (0.5pC), but higher on-resistance (1kΩ vs. 400Ω) | Ultra-low-leakage applications (e.g., electrometer front-ends) where signal integrity outweighs on-resistance loss | Choose MAX328 only when sub-10pA leakage is mandatory; otherwise MAX338ESE+T offers better RON/leakage trade-off. |
Compared with DG508A and MAX328, the MAX338ESE+T delivers optimal balance of low on-resistance, ultra-low leakage, and industry-standard pinout-making it ideal for industrial DAQ, military comms, and guidance systems where reliability, precision, and drop-in upgrade capability are jointly required.
Availability
MAX338ESE+T is available at Aetrix Electronics and suitable for data-acquisition systems, test equipment, and military radio applications requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX338ESE+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) is a U.S.-based semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, automotive, and communications markets.
The MAX338 series belongs to Maxim's precision analog switch product line, engineered for low-leakage, low-charge-injection signal routing in mission-critical measurement and control systems demanding reliability across harsh environments.
FAQ
What is the maximum analog signal voltage range supported by the MAX338ESE+T?
The MAX338ESE+T supports analog signals from V− to V+ - up to ±15V with dual ±15V supplies or 0V to +15V with single +15V supply (V− tied to GND). Absolute maximum ratings allow V+ to +30V and V− to –20V, but signal range is constrained by supply rails. Operation outside these bounds risks damage or undefined behavior.
Is the MAX338ESE+T pin-compatible with the DG508A?
Yes, the MAX338ESE+T is a pin-compatible, drop-in upgrade for the DG508A. Both use identical 16-pin narrow SOIC pinout and logic-level addressing. The MAX338ESE+T improves upon DG508A with lower leakage (<20pA vs. >100pA), guaranteed 1.5pC charge injection, and >2000V ESD protection - all without requiring PCB or firmware changes.
Does the MAX338ESE+T support single-supply operation?
Yes, the MAX338ESE+T operates from a single +4.5V to +30V supply. In this configuration, connect V− to GND. Analog signal range becomes 0V to V+, e.g., 0V to +15V. Note that on-resistance increases slightly versus dual-supply operation (e.g., 460–650Ω typ at +12V), and transition time may lengthen at lower voltages.
What is the purpose of the EN (enable) pin on the MAX338ESE+T?
EN is an active-high enable input that globally enables or disables all eight analog switches. When EN = low, all channels are off and exhibit <20pA off-leakage, isolating inputs from COM. When EN = high, channel selection proceeds via A0–A2. This allows power gating, system-level sequencing, and reduced crosstalk during idle periods in battery-powered or safety-critical systems.
Can the MAX338ESE+T handle bidirectional analog signals?
Yes, the MAX338ESE+T is fully bidirectional: current flows equally well from NOx to COM or COM to NOx. This enables use as both a multiplexer (multiple inputs → one output) and demultiplexer (one input → multiple outputs), and supports AC-coupled or floating-signal applications such as audio routing or isolated sensor interfaces without polarity constraints.
MAX338ESE+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- 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
- 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:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
MAX338ESE+T FAQ
1.How can I place an order for MAX338ESE+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX338ESE+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 MAX338ESE+T reliable?
The price and inventory of MAX338ESE+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX338ESE+T is usually 5 days.
3.What payment methods are accepted for MAX338ESE+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX338ESE+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX338ESE+T?
MAX338ESE+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX338ESE+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 MAX338ESE+T?
For technical support, including MAX338ESE+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX338ESE+T requirements.
6.How does Aetrix verify that MAX338ESE+T is sourced from the original manufacturer or authorized distributors?
All MAX338ESE+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 MAX338ESE+T meets industry standards.
7.What is the process for return or replacement of MAX338ESE+T?
All MAX338ESE+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX338ESE+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 MAX338ESE+T part is unused and in its original packaging.
Return procedure for MAX338ESE+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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