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Analog Devices Inc./Maxim Integrated MAX338CEE+
- Part No.:
- MAX338CEE+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-SSOP (0.154", 3.90mm Width)
- Datasheet:
-
MAX338CEE+.pdf
- Description:
- IC MUX 8:1 400OHM 16QSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,911
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Product details
Overview
MAX338CEE+ 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 data-acquisition systems and test equipment operating from ±4.5V to ±20V or +4.5V to +30V supplies.
For engineers reviewing the MAX338CEE+ datasheet, MAX338CEE+ pinout, MAX338CEE+ application, or MAX338CEE+ equivalent, key selection criteria include guaranteed low leakage across temperature, rail-to-rail analog signal handling (±15V), TTL/CMOS-compatible enable and address inputs, ESD protection >2000V, and pin compatibility with industry-standard DG508A.
Technical Context
The MAX338CEE+ implements a monolithic silicon-gate CMOS switch architecture with integrated decode logic, supporting both multiplexing and demultiplexing functions. Its 3-bit address (A0–A2) and active-high EN input fully control channel selection, while all digital inputs remain TTL/CMOS-compatible across ±4.5V to ±18V supply ranges.
Signal integrity is maintained via matched on-resistance (<10Ω max mismatch), low crosstalk (−92dB at 100kHz), and high off-isolation (−75dB). The device operates over 0°C to +70°C and is fabricated using Maxim's 44V process, enabling robust performance with ±20V bipolar or +30V single-supply configurations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance | ≤400Ω max at ±10V COM voltage - ensures minimal signal attenuation and gain error in precision measurement paths. |
| NO-Off Leakage | <20pA at +25°C - preserves high-impedance sensor node integrity and reduces offset drift in sample-and-hold circuits. |
| Charge Injection | 1.5pC typical - limits voltage glitch on sampled capacitors, critical for 12-bit+ ADC front-end accuracy. |
| Supply Range | ±4.5V to ±20V dual or +4.5V to +30V single - supports industrial and military rails without level-shifting circuitry. |
| Transition Time | <500ns - enables fast channel switching in automated test equipment and real-time signal routing. |
| ESD Protection | >2000V per Method 3015.7 - enhances reliability during board handling and system integration without external protection. |
| Logic Compatibility | TTL/CMOS inputs (0.8V–2.4V thresholds) over full temp/supply range - simplifies interface to microcontrollers and FPGAs. |
Pinout & Package
MAX338CEE+ is housed in a 16-pin QSOP (Quarter-Size Outline Package) with 0.15mm lead pitch and RoHS-compliant lead-free finish. The package measures 4.9mm × 3.9mm × 1.35mm and features gull-wing leads suitable for surface-mount reflow assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4, 5, 6, 7, 9, 10, 11, 12 | NO1–NO8 | Bidirectional analog input terminals - support rail-to-rail signal voltages up to ±15V; each independently selectable as source or sink. |
| 8 | COM | Common analog output/input terminal - connects to ADC input, op-amp summing node, or sensor reference point. |
| 13 | V+ | Positive supply rail - must be ≥+4.5V (single) or ≥±4.5V (dual); powers internal logic and switch driver stages. |
| 3 | V− | Negative supply rail - required for bipolar operation; sets lower analog signal limit and bias for NMOS/PMOS switch pairs. |
| 14 | GND | Analog/digital reference ground - separate from V− in dual-supply mode; critical for noise rejection in mixed-signal layouts. |
| 15, 16, 14 | A0, A1, A2 | 3-bit binary address inputs - select one of eight NOx channels; latched internally, no external clock needed. |
| 2 | EN | Active-high enable input - disables all switches when low, reducing leakage and power consumption in standby mode. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog signal handling | Supports input/output signals from V− to V+ - eliminates need for external clamping or level-shifting in ±15V systems. |
| Guaranteed low on-resistance match | <10Ω max channel-to-channel RON variation - minimizes gain error when multiplexing multiple sensor bridges or RTDs. |
| Plug-in upgrade for DG508A | PIN-compatible replacement with improved leakage, charge injection, and ESD - allows drop-in redesign without PCB changes. |
| Low dynamic crosstalk | −92dB at 100kHz - prevents interference between adjacent channels in high-frequency multiplexed communication or RF sampling. |
| Single- or dual-supply flexibility | Operates identically across +4.5V–+30V or ±4.5V–±20V - simplifies power architecture in portable, industrial, and avionics platforms. |
Applications
| Data-Acquisition Systems | Test Equipment |
|---|---|
Use Scenario: Scanning multiple thermocouple or strain gauge inputs into a shared 16-bit SAR ADC. IC Role / Device Role / Timing Role: Precision analog switch matrix managing signal routing with minimal offset, gain, and settling errors. Use Value: Sub-20pA leakage and 1.5pC charge injection preserve DC accuracy and reduce recalibration frequency. |
Use Scenario: Automated switching of calibration references, DUT signals, and measurement paths in benchtop multimeters. IC Role / Device Role / Timing Role: High-reliability channel selector enabling repeatable, low-noise measurements across 100+ test points. Use Value: 500ns transition time and −92dB crosstalk ensure measurement integrity during rapid sequence execution. |
| Military Radios | Guidance and Control Systems |
Use Scenario: Routing RF front-end receive paths, antenna diversity signals, and IF filter banks in SDR transceivers. IC Role / Device Role / Timing Role: Low-leakage, ESD-hardened analog mux handling sensitive LNA outputs and mixer inputs. Use Value: >2000V HBM ESD rating and −75dB off-isolation protect against field-induced transients and coupling. |
Use Scenario: Selecting inertial sensor outputs (gyro, accelerometer) and GPS timing references in flight control units. IC Role / Device Role / Timing Role: Temperature-stable analog switch ensuring deterministic signal path latency and minimal channel mismatch. Use Value: On-resistance matching <10Ω and operation from −40°C to +85°C guarantee consistent loop response across environmental extremes. |
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 specified, 600Ω max RON. | Limited to less demanding industrial instrumentation; not recommended for precision or harsh-environment use. | MAX338CEE+ offers superior leakage, ESD, and RON specs - preferred where accuracy or reliability is critical. |
| MAX328 | Lower leakage (<5pA) and charge injection (0.5pC), but higher RON (1kΩ max) and slower transition time (1.2µs). | Better for ultra-low-current sensor interfaces (e.g., photodiode arrays); unsuitable for high-speed or low-impedance loads. | Select MAX338CEE+ when balancing speed, leakage, and on-resistance - ideal for general-purpose precision muxing. |
Compared with DG508A and MAX328, the MAX338CEE+ delivers optimal trade-off between leakage, speed, and on-resistance - making it the default choice for data-acquisition, test, and military-grade analog routing where all three parameters matter.
Availability
MAX338CEE+ is available at Aetrix Electronics and suitable for data-acquisition systems, automated test equipment, and military radio designs requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.
Supply support for MAX338CEE+ 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 fabless semiconductor company specializing in high-performance analog, mixed-signal, and power-management ICs for industrial, automotive, and communications markets.
The MAX338/MAX339 product line was engineered for low-leakage, low-charge-injection analog signal routing in precision measurement and ruggedized systems - targeting applications where signal fidelity and reliability outweigh raw speed.
FAQ
What supply voltage ranges does the MAX338CEE+ support?
The MAX338CEE+ operates from a single +4.5V to +30V supply or dual ±4.5V to ±20V supplies. When using single-supply mode, V− must be tied to GND. The device maintains full functionality-including TTL/CMOS input compatibility and rail-to-rail analog signal handling-across this entire range. Absolute maximum ratings allow V+–V− differential up to 44V.
Is the MAX338CEE+ pin-compatible with the DG508A?
Yes, the MAX338CEE+ is explicitly designed as a pin-compatible upgrade for the DG508A. All 16 pins match functionally and physically in the QSOP package, including identical NOx, COM, V+, V−, GND, EN, and address pin assignments. No PCB layout changes are required for migration, though improved leakage and ESD performance deliver immediate system-level benefits.
What is the maximum allowable analog signal voltage range for the MAX338CEE+?
The MAX338CEE+ supports analog signals from V− to V+ - i.e., rail-to-rail operation. With ±15V supplies, the full range is −15V to +15V; with +12V/V− = GND, it is 0V to +12V. Signals exceeding these rails are clamped by internal diodes, so external protection is unnecessary unless absolute maximum ratings (e.g., V+ +2V) are approached.
How does temperature affect leakage current in the MAX338CEE+?
NO-off leakage in the MAX338CEE+ increases with temperature: at +25°C it is <20pA, rising to ≤1.25nA over the full 0°C to +70°C operating range. This behavior is fully characterized and tested - critical for high-impedance applications like piezoelectric sensors or electrometer-grade amplifiers where thermal drift directly impacts baseline stability.
Can the MAX338CEE+ be used in demultiplexer configurations?
Yes, the MAX338CEE+ functions bidirectionally and supports demultiplexer operation: a single analog input applied to COM can be routed to any of the eight NOx terminals under address control. This capability is inherent to its CMOS transmission-gate architecture and requires no external components or configuration changes - verified in the truth table and functional diagrams of the official datasheet.
MAX338CEE+ 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
- 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:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-QSOP
MAX338CEE+ FAQ
1.How can I place an order for MAX338CEE+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX338CEE+ 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 MAX338CEE+ reliable?
The price and inventory of MAX338CEE+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX338CEE+ is usually 5 days.
3.What payment methods are accepted for MAX338CEE+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX338CEE+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX338CEE+?
MAX338CEE+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX338CEE+ 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 MAX338CEE+?
For technical support, including MAX338CEE+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX338CEE+ requirements.
6.How does Aetrix verify that MAX338CEE+ is sourced from the original manufacturer or authorized distributors?
All MAX338CEE+ 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 MAX338CEE+ meets industry standards.
7.What is the process for return or replacement of MAX338CEE+?
All MAX338CEE+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX338CEE+, 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 MAX338CEE+ part is unused and in its original packaging.
Return procedure for MAX338CEE+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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