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Analog Devices Inc./Maxim Integrated MAX336CWI+T
- Part No.:
- MAX336CWI+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 28-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
MAX336CWI+T.pdf
- Description:
- IC MUX 16:1 400OHM 28SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,064
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Product details
Overview
MAX336CWI+T from Maxim Integrated is a 16-channel, single-ended CMOS analog multiplexer designed to route one of 16 bidirectional analog inputs (NO1–NO16) to a common output (COM) under 4-bit binary address control (A0–A3). It features 400Ω max on-resistance, <20pA NO-off leakage at +25°C, and 3.5pC typical charge injection-enabling precision data acquisition in test equipment and signal routing systems operating from +4.5V to +30V single supply or ±4.5V to ±20V dual supplies.
For engineers reviewing the MAX336CWI+T datasheet, MAX336CWI+T pinout, MAX336CWI+T application, or MAX336CWI+T equivalent, key selection criteria include rail-to-rail bidirectional signal handling, TTL/CMOS-compatible enable and address inputs, guaranteed low leakage across temperature, and compatibility with legacy DG506/DG507 layouts in wide SO-28 packaging.
Technical Context
The MAX336CWI+T implements a monolithic BiCMOS decoder-driver architecture that decodes A0–A3 to select one of 16 NMOS/PMOS transmission-gate switch paths between NOx terminals and COM. All switches conduct equally in both directions, supporting true bidirectional analog signal routing without polarity constraints.
Its control logic accepts TTL-level inputs (0.8V to 2.4V) across full supply ranges (±4.5V to ±18V or +4.5V to +30V), and includes an active-low enable (EN) that places all switches in high-impedance off-state when deasserted-critical for channel isolation in multiplexed sensor arrays and automated test systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Channel Count | 16-channel single-ended mux: selects one analog input (NO1–NO16) to shared COM output |
| On-Resistance (max) | 400Ω at TA = +25°C, VCOM = ±10V: ensures minimal signal attenuation and gain error in precision instrumentation |
| NO-Off Leakage (max) | 20pA at +25°C: preserves high-impedance node integrity in low-current sensor front-ends |
| Charge Injection (typ) | 3.5pC: limits voltage glitch on sampled-hold capacitors in data acquisition systems |
| Supply Range | +4.5V to +30V single or ±4.5V to ±20V dual: supports industrial ±15V and battery-powered +5V/+12V systems |
| Transition Time (max) | 500ns: enables sub-microsecond channel switching in automated test equipment |
| ESD Protection | >2000V per Method 3015.7: enhances robustness during board handling and system integration |
Pinout & Package
MAX336CWI+T is housed in a 28-pin Wide SO (SOIC-W) package with 300-mil body width and standard gull-wing leads. Pin 1 is marked by a beveled corner or dot; pin numbering follows counter-clockwise convention from top-left.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| V+ | Positive supply voltage input | Accepts +4.5V to +30V (single) or up to +20V (dual); must be powered before V− and logic inputs |
| V− | Negative supply voltage input | Accepts −4.5V to −20V (dual); connect to GND for single-supply operation |
| GND | Logic ground reference | Reference for TTL/CMOS inputs (EN, A0–A3); separate from analog signal ground paths |
| COM | Common analog output terminal | Bidirectional rail-to-rail node; connects to selected NOx channel when enabled |
| NO1–NO16 | Analog input/output terminals | 16 bidirectional, interchangeable analog ports; no internal directionality |
| A0–A3 | Binary address inputs | 4-bit code selects active channel (0000 = NO1, 1111 = NO16); TTL/CMOS compatible |
| EN | Enable input (active-high) | High enables switching; low forces all channels into high-Z off-state for isolation |
| N.C. | No internal connection | Pins 2, 3, 13: unused; must remain unconnected or tied to GND/V+ per layout best practice |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail bidirectional signal handling | Supports analog signals from V− to V+ without clipping-enables full dynamic range use in ±15V or +12V systems |
| Guaranteed low charge injection (3.5pC typ) | Minimizes sampling error in precision ADC front-ends and sample-and-hold circuits |
| Pin-compatible upgrade for DG506/DG507 | Direct replacement in existing designs without PCB modification-reduces redesign time and qualification effort |
| Sub-20pA off-leakage at +25°C | Preserves accuracy in high-impedance pH sensors, photodiode amplifiers, and electrometer-grade measurement nodes |
| TTL/CMOS-compatible control inputs | Operates reliably with microcontroller GPIO, FPGA I/O, and logic families across full temperature and supply range |
Applications
| Precision Data Acquisition | Precision Signal Routing |
|---|---|
Use Scenario: Multiplexing outputs from 16 thermocouple or RTD sensor amplifiers into a single high-resolution ADC channel. IC Role / Device Role / Timing Role: Analog switch matrix enabling sequential sampling of multiple sensors while maintaining signal fidelity and low offset drift. Use Value: 400Ω max on-resistance and <20pA leakage ensure minimal gain/offset error and long-term stability in 24-bit measurement systems. | Use Scenario: Reconfigurable analog signal path in modular test instrumentation, routing arbitrary waveforms between generators, DUTs, and analyzers. IC Role / Device Role / Timing Role: Channel-selectable bidirectional analog interconnect with sub-500ns transition time for rapid test sequence execution. Use Value: Rail-to-rail operation and 3.5pC charge injection prevent waveform distortion and settling errors during dynamic reconfiguration. |
| Automated Test Equipment (ATE) | Industrial Process Monitoring |
Use Scenario: High-density signal switching in semiconductor wafer probers and board-level functional testers requiring >100k cycle reliability. IC Role / Device Role / Timing Role: Low-leakage, ESD-hardened multiplexer managing stimulus/response paths across multiple DUT pins. Use Value: >2000V ESD rating and guaranteed 500Ω max on-resistance over temperature reduce field failure rates and calibration drift. | Use Scenario: Consolidating analog inputs from pressure, flow, and level transmitters in PLC analog input modules. IC Role / Device Role / Timing Role: Industrial-grade analog front-end selector supporting 4–20mA loop-powered sensors and isolated voltage inputs. Use Value: Dual-supply capability (±15V) and −40°C to +85°C extended variants (e.g., MAX336EWI+) ensure operation in harsh cabinet environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX336CAI+ | Same electrical specs; SSOP-28 package (5.6mm × 13.9mm vs. SO-28's 7.6mm × 17.9mm) | Higher board density required; less thermal mass than SO-28 | Select for space-constrained PCBs where thermal dissipation is managed externally |
| ADG506AKRZ | 440Ω max on-resistance; 25pA max NO-off leakage at +25°C; no guaranteed charge injection spec | Lower ESD rating (1500V HBM); not pin-compatible-requires layout change | Choose when ADI ecosystem alignment or alternate qualification path is prioritized over drop-in replacement |
Compared with MAX336CAI+, the MAX336CWI+T offers superior thermal performance and hand-solderability in wide SO; compared with ADG506AKRZ, it delivers lower leakage, tighter charge injection control, and proven DG506 pin compatibility-making it optimal for legacy upgrades and high-precision signal chains.
Availability
MAX336CWI+T is available at Aetrix Electronics and suitable for precision data acquisition, automated test equipment, and industrial process monitoring requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.
Supply support for MAX336CWI+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, communications, and computing applications.
The MAX336 series belongs to Maxim's precision analog switch product line, engineered specifically for low-leakage, low-charge-injection, and rail-to-rail signal routing in demanding measurement and test systems.
FAQ
What is the maximum allowable supply voltage for MAX336CWI+T?
The MAX336CWI+T supports a single supply from +4.5V to +30V or dual supplies from ±4.5V to ±20V. Absolute maximum ratings specify V+ to V− differential must not exceed 44V, and V+ must not exceed −0.3V to +44V relative to V−. Exceeding these limits risks permanent damage, even if within individual rail specifications.
Does MAX336CWI+T support bidirectional analog signal flow?
Yes, the MAX336CWI+T supports fully bidirectional analog signal routing. Its CMOS transmission-gate architecture allows current flow in either direction between any NOx pin and the COM pin, with identical on-resistance and leakage characteristics-enabling flexible use as a multiplexer or demultiplexer without signal polarity constraints.
Is MAX336CWI+T pin-compatible with the industry-standard DG506?
Yes, the MAX336CWI+T is explicitly designed as a pin-compatible upgrade for the DG506. Pin assignments, supply connections, address inputs (A0–A3), enable (EN), COM, and NO1–NO16 match exactly-allowing direct replacement in existing DG506 layouts without PCB revision or firmware changes.
What is the typical charge injection value for MAX336CWI+T, and why does it matter?
The MAX336CWI+T has a typical charge injection of 3.5pC, measured with CL = 100pF and RS = 0Ω. This parameter directly impacts voltage glitches on sampling capacitors in data acquisition systems; lower charge injection reduces settling time and improves effective resolution in switched-capacitor ADC front-ends and sample-and-hold circuits.
Can MAX336CWI+T operate from a single +5V supply?
Yes, the MAX336CWI+T operates from +4.5V to +30V single supply. At +5V, on-resistance increases to ~700Ω (max), and transition time extends to ~600ns-still functional for many low-speed applications, though performance metrics degrade versus ±15V or +12V operation. Ensure analog signal range remains within 0V to +5V.
MAX336CWI+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:
- 16:1
- Number of Circuits:
- 1
- On-State Resistance (Max):
- 400Ohm
- Channel-to-Channel Matching (ΔRon):
- 5Ohm
- Voltage - Supply, Single (V+):
- 4.5V ~ 20V
- Voltage - Supply, Dual (V±):
- ±4.5V ~ 20V
- Switch Time (Ton, Toff) (Max):
- 500ns, 500ns
- -3db Bandwidth:
- -
- Charge Injection:
- 3.5pC
- Channel Capacitance (CS(off), CD(off)):
- 2pF, 20pF
- Current - Leakage (IS(off)) (Max):
- 20pA
- Crosstalk:
- -86dB @ 100kHz
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 28-SOIC
MAX336CWI+T FAQ
1.How can I place an order for MAX336CWI+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX336CWI+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 MAX336CWI+T reliable?
The price and inventory of MAX336CWI+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX336CWI+T is usually 5 days.
3.What payment methods are accepted for MAX336CWI+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX336CWI+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX336CWI+T?
MAX336CWI+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX336CWI+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 MAX336CWI+T?
For technical support, including MAX336CWI+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX336CWI+T requirements.
6.How does Aetrix verify that MAX336CWI+T is sourced from the original manufacturer or authorized distributors?
All MAX336CWI+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 MAX336CWI+T meets industry standards.
7.What is the process for return or replacement of MAX336CWI+T?
All MAX336CWI+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX336CWI+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 MAX336CWI+T part is unused and in its original packaging.
Return procedure for MAX336CWI+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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