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Analog Devices Inc./Maxim Integrated MAX338CSE+T
- Part No.:
- MAX338CSE+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX338CSE+T.pdf
- Description:
- IC MUX 8:1 400OHM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,900
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Product details
Overview
The MAX338CSE+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 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 MAX338CSE+T datasheet, MAX338CSE+T pinout, MAX338CSE+T application, or MAX338CSE+T 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 MAX338CSE+T implements a monolithic silicon-gate CMOS switch architecture with integrated decode logic for 3-bit address selection (A0–A2) and active-high enable (EN). All eight NOx channels and COM share symmetrical conduction paths, supporting bidirectional signal flow without polarity constraints.
It operates across dual supplies (±4.5V to ±20V) or single supply (+4.5V to +30V), with input voltage ranges referenced to V+ and V− rails. Control inputs remain TTL-compatible over full supply and temperature ranges, and internal clamping diodes protect NO/COM pins against overvoltage up to (V− − 2V) and (V+ + 2V).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance | ≤400Ω max at TA = +25°C; ensures minimal signal attenuation and gain error in precision measurement paths. |
| NO-Off Leakage Current | <20pA at +25°C; critical for high-impedance sensor interfaces and sample-and-hold accuracy. |
| Charge Injection | 1.5pC typ; limits voltage glitch on COM during channel switching, preserving integrity in ADC front-ends. |
| Transition Time | <500ns; supports multiplexing of moderate-bandwidth signals (e.g., audio, sensor outputs) without distortion. |
| Supply Range | Single: +4.5V to +30V; Dual: ±4.5V to ±20V; enables flexible system-level power architecture integration. |
| ESD Protection | >2000V per Method 3015.7; reduces need for external protection in field-deployed test and military radios. |
| On-Resistance Match | <10Ω between channels; maintains consistent gain scaling across all 8 inputs in programmable gain amplifier configurations. |
Pinout & Package
MAX338CSE+T is housed in a 16-pin narrow SO (Small Outline) package, RoHS-compliant and lead(Pb)-free, with standard JEDEC MS-012AC outline and 0.15mm lead thickness.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | V− | Negative supply rail; must be connected for dual-supply operation or tied to GND for single-supply use. |
| 2–5 | NO1–NO4 | Bidirectional analog inputs; support rail-to-rail signal voltages between V− and V+. |
| 6 | COM | Common analog output terminal; connects to selected NOx channel when enabled. |
| 7–10 | NO8–NO5 | Bidirectional analog inputs; numbered in reverse physical order per package layout. |
| 11 | V+ | Positive supply rail; defines upper analog signal limit and powers internal logic/switches. |
| 12 | GND | Digital ground reference; separate from analog return but internally tied to substrate. |
| 13 | A2 | MSB address input; controls channel selection with A1 and A0 per truth table. |
| 14 | A1 | Mid-bit address input; part of 3-bit binary decoder driving internal switch matrix. |
| 15 | A0 | LSB address input; completes 3-bit address for selecting one of eight NOx channels. |
| 16 | EN | Active-high enable; disables all switches (high-Z state) when logic low; TTL/CMOS compatible. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail signal handling | Supports analog signals from V− to V+ (e.g., ±15V), eliminating level-shifting in bipolar instrumentation front-ends. |
| Plug-in upgrade for DG508A | PIN-TO-PIN compatible with industry-standard DG508A, enabling drop-in replacement without PCB redesign. |
| Guaranteed low charge injection | 1.5pC typical ensures sub-mV switching transients on 100pF loads-critical for high-resolution SAR ADC sampling. |
| TTL/CMOS logic compatibility | Inputs accept 0.8V–2.4V thresholds across full temperature and supply range, simplifying interface to microcontrollers and FPGAs. |
| Low on-resistance matching | <10Ω channel-to-channel RON variation minimizes gain mismatch in multi-channel calibration systems. |
Applications
| Data-Acquisition Systems | Test Equipment |
|---|---|
Use Scenario: Multiplexing outputs from 8 thermocouple amplifiers into a single 16-bit ADC channel. IC Role / Device Role / Timing Role: Analog signal router with low leakage and low charge injection to preserve DC accuracy and minimize settling error. Use Value: Enables cost-effective 8-channel scanning without external op-amp buffers or recalibration due to ≤20pA off-leakage and 1.5pC charge injection. |
Use Scenario: Switching calibrated reference voltages into DUT input during automated functional testing. IC Role / Device Role / Timing Role: Precision analog switch providing repeatable, low-distortion path selection with <500ns transition time. Use Value: Maintains test repeatability across temperature via guaranteed ≤400Ω on-resistance and <10Ω matching-reducing measurement uncertainty. |
| Military Radios | Guidance and Control Systems |
Use Scenario: Routing RF detector outputs or IF stage signals in compact, ruggedized communication modules. IC Role / Device Role / Timing Role: High-reliability analog mux with >2000V ESD protection and operation from −40°C to +85°C. Use Value: Eliminates need for discrete protection circuitry while meeting MIL-STD-883 Class B ESD requirements in field-deployed radios. |
Use Scenario: Selecting among multiple inertial sensor outputs (gyro, accelerometer) feeding a navigation processor. IC Role / Device Role / Timing Role: Low-leakage, bidirectional analog switch ensuring signal fidelity in safety-critical feedback loops. Use Value: Prevents drift-induced errors in closed-loop control via <20pA off-leakage and rail-to-rail operation up to ±15V. |
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 on-resistance (600Ω max), higher charge injection (10pC), no ESD rating specified. | Lacks guaranteed ESD protection and low-leakage performance required for modern high-precision designs. | Legacy drop-in option only where MAX338CSE+T's improved specs are not needed. |
| MAX328 | Lower leakage (<5pA), lower charge injection (0.5pC), but higher on-resistance (900Ω max). | Better for ultra-high-impedance sensor nodes; unsuitable for low-distortion, wide-dynamic-range signal paths. | Select when leakage and charge injection dominate over on-resistance in system error budget. |
Compared with DG508A and MAX328, the MAX338CSE+T delivers optimal balance of low on-resistance, low leakage, and robust ESD protection-making it ideal for general-purpose precision multiplexing where both signal integrity and reliability are critical.
Availability
MAX338CSE+T is available at Aetrix Electronics and suitable for data-acquisition systems, test equipment, and military radio designs requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for MAX338CSE+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 semiconductor company specializing in high-performance analog, mixed-signal, and power-management ICs for industrial, communications, and computing applications.
The MAX338CSE+T belongs to Maxim's precision analog multiplexer product line, engineered for low-leakage, low-charge-injection signal routing in demanding instrumentation and defense systems.
FAQ
What supply voltage ranges does the MAX338CSE+T support?
The MAX338CSE+T operates from a single +4.5V to +30V supply or dual supplies of ±4.5V to ±20V. When using single supply, V− must be connected to GND. The device maintains full functionality-including TTL-compatible logic inputs and rail-to-rail analog signal handling-across this entire range. Absolute maximum ratings specify V+ to V− differential up to 44V.
Is the MAX338CSE+T pin-compatible with the DG508A?
Yes, the MAX338CSE+T is explicitly designed as a pin-compatible upgrade for the DG508A. Pin assignments, footprint, and functional behavior-including address decoding, enable polarity, and NO/COM terminal mapping-are identical. This allows direct replacement without PCB modification, while delivering improved on-resistance, leakage, charge injection, and ESD protection.
What is the maximum allowable analog signal voltage range for the MAX338CSE+T?
The MAX338CSE+T supports rail-to-rail analog signals between V− and V+. With ±15V supplies, the full range is −15V to +15V. Under single +15V supply (V− = GND), the range is 0V to +15V. Input signals exceeding V+ or V− are clamped by internal diodes; forward current must be limited to avoid damage. The absolute maximum analog voltage is (V− − 2V) to (V+ + 2V).
How does the MAX338CSE+T handle bidirectional signal flow?
The MAX338CSE+T is inherently bidirectional: NOx terminals and COM can serve as either input or output depending on system configuration. Its CMOS switch architecture provides symmetrical on-resistance and leakage characteristics regardless of signal direction. This enables flexible use in both multiplexer (NO→COM) and demultiplexer (COM→NO) modes without performance degradation.
What is the significance of the 1.5pC typical charge injection spec for the MAX338CSE+T?
The 1.5pC typical charge injection value quantifies the transient voltage glitch induced on the COM node when a channel switches off. With a 100pF load, this results in a ≤15mV step-critical for maintaining accuracy in sample-and-hold circuits and successive-approximation ADC front-ends. This low value is guaranteed by design and tested across temperature, directly enabling high-resolution data acquisition without additional blanking or correction circuitry.
MAX338CSE+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:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
MAX338CSE+T FAQ
1.How can I place an order for MAX338CSE+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX338CSE+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 MAX338CSE+T reliable?
The price and inventory of MAX338CSE+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX338CSE+T is usually 5 days.
3.What payment methods are accepted for MAX338CSE+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX338CSE+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX338CSE+T?
MAX338CSE+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX338CSE+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 MAX338CSE+T?
For technical support, including MAX338CSE+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX338CSE+T requirements.
6.How does Aetrix verify that MAX338CSE+T is sourced from the original manufacturer or authorized distributors?
All MAX338CSE+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 MAX338CSE+T meets industry standards.
7.What is the process for return or replacement of MAX338CSE+T?
All MAX338CSE+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX338CSE+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 MAX338CSE+T part is unused and in its original packaging.
Return procedure for MAX338CSE+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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